Homepage of Geir Oien (Įien)

 

 

 

Geir E. Įien

Full Professor, PhD, Senior Member of the IEEE

Signal Processing Group, Department of Electronics and Telecommunications

Faculty of Information Technology, Mathematics and  Electrical Engineering

Norwegian University of Science and Technology (NTNU)

 

Contact details

 

Postal address:            Geir E. Įien

Institutt for elektronikk og telekommunikasjon (IET)

NTNU

N-7491 Trondheim

NORWAY

E-mail:                         geir.oien at iet.ntnu.no

Office phone:              +4773594315

Mobile phone:             +4793455408

Fax:                             +4773592640

Webpage:                    http://www.iet.ntnu.no/~oien

Secretary:                    Mrs. Kirsten Ekseth, +47734594318

Visits:                          Office C349 in building ”Elektroblokk C”

OS Bragstads plass 2A

                                    NTNU – GlŅshaugen

Trondheim, Norway

 

Biography

 

Geir Egil Įien (Oien) was born in Trondheim, Norway in 1965. He received the MScEE and the PhD degrees, both from the Norwegian Institute of Technology (NTH) in Trondheim, Norway, respectively in 1989 and 1993. From 1994 to 1996 he was an Associate Professor with Stavanger University College in Stavanger, Norway. In 1996, he joined NTNU as an Associate Professor, and in 2001 was promoted to Full Profes­sor. During the academic year 2005-2006 he was visiting professor with Institut Eurécom in Sophia-Antipolis, France. From August 2009 to August 2013 he will be on leave from his professorship in order to serve as Faculty Dean of NTNU’s Faculty of Information Technology, Mathematics, and Electrical Engineering.

 

Prof. Įien is the author or co-author of more than 110 scientific publications in refereed international fora (for full list sorted by year, see end of page). He currently supervises or co-supervises 12 PhD students, and has formerly graduated 9 PhD students (for full list, see below). He participates in, manages, and/or coordinates a number of national and international projects and networks of collaboration (for list, see below). His current research interests are in communication theory, information theory, and signal processing for wireless communications and sensor networks, with particular emphasis on link adaptation, power control, radio resource allocation, dynamic spectrum sharing, interference management, access schemes, and cross-layer design.

 

Research projects

 

CUBAN - Co-optimized Ubiquitous Broadband Access Networks

CROPS - CRoss-layer OPtimization in Short-range wireless sensor networks

CROPS2 – Cross-layer OPtimization in wireless Sensor networks for Spectrum sensing

SECOMAS – Spectrally Efficient COMmunications for future Aeronautical Services

SENDORA – SEnsor Network for Dynamic and cOgnitive RAdio (STREP, EU 7FP Call 1)

CORAL – Cooperative and Opportunistic Resource ALlocation in wireless networks

SAMPOS/WISENET – Strategies for seAMless deployment of mobile Patient mOnitoring Systems/WIreless biomedical Sensor NETwork

BEATS - Bandwidth-Efficient and Adaptive Transmission Schemes for wireless multimedia communications (ended 2007)

TURBAN - TURBo codes, Access and Network technologies related to UMTS (ended 2005)

WIRAC  - WIdeband Radio Access (ended 2002)

 

International networks of collaboration

 

COST2100 – Pervasive Mobile and Ambient Wireless Communications

NEWCOM - Network of Excellence in Wireless COMmunications (ended 2007)

COST 273 - Towards Mobile Multimedia Broadband Networks (ended 2005)

COST 289 - Spectrum and Power Efficient Broadband Communications (ended 2006)

 

 

Main external collaborators

 

Prof. Mohamed-Slim Alouini (Texas A&M University at Education City, Qatar)

Prof. David Gesbert (Institut Eurécom, Sophia-Antipolis, France)

Prof. Aawatif Menouni Hayar (Institut Eurécom, Sophia-Antipolis, France)

Prof. Kjell JŅrgen Hole (University of Bergen, Bergen, Norway)

Dr. PĆl Orten (ABB CRC and UniK, Oslo, Norway)

Prof. Maēté Brandt-Pearce (Univ. of Virginia, USA)

Prof. Mikael Skoglund (Royal Institute of Technology (KTH), Stockholm, Sweden)

Prof. Hong-Chuan Yang (University of Victoria, Victoria, Canada)

 

PhD students

 

Vesna Gardasevic (co-supervisor; from November 2008)

Elissar Khloussy (co-supervisor, from September 2008)

Yuehong Gao (co-supervisor, from September 2008)

John Torjus FlĆm (co-supervisor, from June 2008)

Nurul Mahmood (from June 2008)

Luxmiram Vijayandran (co-supervisor; from June 2008)

Jawad Rasool (2007 – present)

Hessam Moussavinik (co-supervisor; 2007 – present)

Mariam Kaynia (2007 – present)

Majid Butt (co-supervisor; 2006 – present)

Changmian Wang (2006 - present)

Asghar Havashki (co-supervisor, 2004 - present)

Anders GjendemsjŅ (graduated November 2007; currently with PricewaterhouseCoopers; thesis found here)

Frode BŅhagen (co-supervisor; graduated June 2007; currently with Telenor R&I)

Fredrik Hekland (co-supervisor; graduated June 2007; currently with ABB Corporate Research Center; thesis found here)

Sébastien F. G. M. de la Kethulle de Ryhove (graduated April 2007; currently with Electromagnetic Geoservices (EMGS); thesis found here)

Vegard Hassel (graduated March 2007; currently with Telenor R&I; thesis found here)

Duc Van Duong (graduated September 2006; currently with The Norwegian Defense Research Establishment (FFI); thesis found here)

Bengt Holter (graduated June 2005; currently with SINTEF ICT; thesis found here)

Ola Jetlund (graduated April 2005; currently with Oslo University College; thesis found here)

Henrik Holm (graduated April 2002; currently with Honeywell Corp.; thesis found here)

 

Post-doctoral fellows and researchers

 

Dr. Anna Kim (from October 2008; 24 months NFR fellowship)

Dr. Chung-Shue (Calvin) Chen (2007 – 2008; 9 months ERCIM fellowship)

Dr. Liuguo Yin (2007 – 2008; 12 months ERCIM fellowship)

Dr. Hend Koubaa (2004 – 2005; 9 months ERCIM fellowship)

Dr. Henrik Holm (2002 – 2004; 24 months NTNU fellowship)

 

Other guest researchers and international visitors hosted

 

Prof. Mohamed-Slim Alouini (Texas A&M University at Education City, Qatar)

Prof. Maēté Brandt-Pearce (Univ. of Virginia, USA)

Prof. David Gesbert (Institut Eurécom, Sophia-Antipolis, France)

Prof. Aawatif Menouni Hayar (Institut Eurécom, Sophia-Antipolis, France)

Prof. Phil Schniter (Ohio State University, Columbus, Ohio, USA)

Prof. Hong-Chuan Yang (University of Victoria, Victoria, Canada)

 

Current teaching

 

TTT4160 Mobile communications (4th year MSc level)

TTT09 Communication and coding theory for wireless channels (5th year MSc level)

TT8106 Selected topics in communication theory for wireless channels (PhD level)

 

Personal interests and favourites

Music (blues, soul, rock’n’roll, country, folk, classic rock, singer/songwriters, quality pop, and beyond…), wine (Bourgogne in France, Piemonte in Italy, and Rheingau in Germany are my favourite wine areas; Pinot Noir and Nebbiolo are my favourite red grapes; Riesling my favourite white), gastronomy (if in Trondheim and looking for a gourmet experience, do not miss Credo Restaurant & Bar!), cooking (the world’s best porcini mushroom risotto recipe is found here), travel (France and Italy are two favourite holiday destinations), books (of Norwegian authors, Agnar Mykle, Knut Hamsun and Jens BjŅrneboe are old favourites), movies, swimming (when in Trondheim, be sure to visit the great indoor swimming/bathing facility Pirbadet), …

 

Full list of scientific publications (sorted by year)

 

2009:

 

1.     S. G. Kiani, D. Gesbert, A. GjendemsjŅ, and G. E. Įien, “Distributed Power Allocation for Interfering Wireless Links Based on Channel Information Partitioning,” to appear in IEEE Transactions on Wireless Communications.

 

2.     S. de la Kethulle de Ryhove, G. E. Įien, and F. BŅhagen, “Maximizing the Average Spectral Efficiency of Dual-Branch MIMO Systems with Discrete Rate Adaptation,” IEEE Transactions on Vehicular Technology., vol. 58, no. 2, pp. 1003 – 11011, February 2009.

 

3.     F. BŅhagen, P. Orten, and G. E. Įien, “On Spherical vs. Plane Wave Modeling of Line-of-Sight MIMO Channels,” IEEE Transactions on Communications, vol. 2, no. 57, February 2009.

 

4.     Y. Zhang, J. Xiang, Q. Xin, and G. E. Įien, “Optimal sensing cooperation for spectrum sharing in cognitive radio networks,” to appear in Proc. European Wireless 2009 (EW-09), Ālborg, Denmark, June 2009.

 

5.     M. Kaynia, G. E. Įien, and N. Jindal, “Impact of fading on the performance of ALOHA and CSMA,” to appear in Proc. IEEE SPAWC 2009, Perugia, Italy, June 2009.

 

6.     A. Havashki, L. Lundheim, P. G. Kjeldsberg, O. Gustafsson, and G. E. Įien, “Analysis of switching activity in DSP signals in the presence of noise,” Proc. IEEE EUROCON-2009, St. Petersburg, Russia, May 2009.

 

2008:

 

1.     B. Holter and G. E. Įien, “Performance Analysis of a Rate-Adaptive Dual-Branch Switched Diversity System,” IEEE Transactions on Communications, vol. 56, no. 12, pp. 1998 – 2001, December 2008.

 

2.     F. BŅhagen, P. Orten, G. E. Įien, and S. de la Kethulle de Ryhove, Exact Capacity Expressions for Dual-Branch Ricean MIMO Systems,” IEEE Transactions on Communications, vol. 56, no. 12, pp. 2214 – 2222, December 2008.

 

3.     B. Zayen, M. Haddad, A. M. Hayar, and G. E. Įien, “Binary Power Allocation for Cognitive Radio Networks with Centralized and Distributed User Selection Strategies,” Elsevier Physical Communication Journal, vol. 1, no. 3, pp. 183 – 193, September 2008 (invited paper). Cf. http://dx.doi.org/10.1016/j.phycom.2008.09.002 .

 

4.     A. GjendemsjŅ, D. Gesbert, G. E. Įien, and S. G. Kiani, “Binary Power Control for Sum Rate Maximization over Multiple Interfering Links,” IEEE Transactions on Wireless Communications, vol. 7, no. 8, pp. 3164 – 3173, August 2008.

 

5.     S. de la Kethulle de Ryhove, N. Marina, and G. E. Įien, “On the Capacity and Mutual Information of Memoryless Noncoherent Rayleigh-Fading Channels,” IEEE Transactions on Information Theory, vol. 54, no. 7, pp. 3221 – 3231, July 2008.

 

6.     A. GjendemsjŅ, H.-C. Yang, G. E. Įien, and M.-S. Alouini, “Joint Adaptive Modulation and Diversity Combining with Downlink Power Control,” IEEE Transactions on Vehicular Technology, vol. 57, no. 4, pp. 2145 – 2152, July 2008.

 

7.     S. de la Kethulle de Ryhove, G. E. Įien, and L. Lundheim, “An Efficient Design Methodology for Constant Power Link Adaptation Schemes in Short-Range Scenarios,” IEEE Transactions on Vehicular Technology, vol. 57, no. 4, pp. 2132 – 21544, July 2008.

 

8.     L. Yin, C. Wang, and G. E. Įien, “On the Minimization of Communication Energy Consumption of Correlated Sensor Nodes,” Wireless Personal Communications, Springer Netherlands, 11 pages, June 2008. DOI: 10.1007/s11277-008-9541-y.

Cf. http://www.springerlink.com/content/r91215205tmln710/ .

 

9.     A. GjendemsjŅ, G. E. Įien, H. Holm, M.-S. Alouini, D. Gesbert, K. J. Hole, and P. Orten, “Rate and Power Allocation for Discrete-Rate Link Adaptation,” EURASIP Journal of Wireless Communications and Networking, Volume 2008, Article ID 394124, 11 pages, 2008. DOI: 10.1155/2008/394124. Available at

http://www.hindawi.com/GetArticle.aspx?doi=10.1155/2008/394124 .

 

10.   D. V. Duong, B. Holter, and G. E. Įien, “Analysis and Optimization of Adaptive Coded Modulation Systems in Spatially Correlated SIMO Rayleigh Fading Channels,” IEEE Transactions on Vehicular Technology, vol. 57, no. 3, pp. 1929 – 1934, May 2008.

 

11.  C.-S. Chen, K. W. Shum, C. W. Sung, W. S. Wong, and G. E. Įien, “User un-suppressible protocol sequences for collision channel without feedback,” in Proc. ISITA-2008, Auckland, New Zealand, December 2008.

 

12.  C.-S. Chen and G. E. Įien, “Optimal power allocation for two-cell sum rate maximization under minimum rate constraints,” in Proc. IEEE ISWCS-08, Reykjavik, Iceland, October 2008.

 

13.  A. Havashki, L. Lundheim, P. G. Kjeldsberg, and G. E. Įien, “A study of the effect of finite coefficient word lengths on channel estimator performance,” in Proc. The 9th International Conference on Signal Processing (ICSP'08), Beijing, China, October 2008.

 

14.  C. Wang, L. Yin, and G. E. Įien, “Energy-efficient adaptive route configuration for wireless ad-hoc networks under hard delay constraints,” in Proc. CONET-08, London, UK, September 2008.

 

15.  L. Yin, C. Wang, and G. E. Įien, “Minimum cost routing with optimized data fusion for event-driven dense wireless sensor networks,” in Proc. IEEE PIMRC-08, Cannes, France, September 2008.

 

16.  M. Haddad, A. M. Hayar, and G. E. Įien, “Downlink distributed binary power allocation for cognitive radio networks,” in Proc. IEEE PIMRC-08, Cannes, France, September 2008.

 

17.   M. Kaynia, G. E. Įien, N. Jindal, and D. Gesbert, “Comparative performance evaluation of MAC protocols in ad hoc networks with bandwidth partitioning,” in Proc. PIMRC-08, Cannes, France, September 2008 (invited).

 

18.   A. GjendemsjŅ, S. de la Kethulle de Ryhove, and G. E. Įien, “Spectral efficiency vs. feedback load in discrete-rate link adaptation: Is a zero information outage constraint optimal or not?,” in Proc. 14th European Wireless Conference (EW) 2008, Prague, Czech Republic, June 2008. Best Paper Award.

 

19.   B. Mercier, V. Fodor, R. Thobaben, M. Skoglund, V. Koivunen, S. Lindfors, J. Ryynänen, E. G. Larsson, C. Petrioli, G. Bongiovanni, O. GrŅndalen, K. Kansanen, T. Ekman, G. E. Įien, A. M. Hayar, R. Knopp, and B. B. Lozano, “Sensor networks for cognitive radio: Theory and system design,” in Proc. ICT Mobile Summit 2008, Stockholm, Sweden, June 2008.

 

20.  C.-S. Chen, M. Kaynia, G. E. Įien, and A. GjendemsjŅ, “Cooperative multi-cell power control under imperfect channel knowledge: A comparative study,” in Proc. 2nd COST2100 Workshop on MIMO and Cooperative Communications, Trondheim, Norway, June 2008.

 

21.  M. Haddad, A. M. Hayar, G. E. Įien, and S. G. Kiani, “Uplink distributed binary power allocation for cognitive radio networks,” in Proc. CROWNCOM 2008, Singapore, May 2008.

 

22.  G. E. Įien, “Cross-layer optimization of wireless sensor networks for spectrum sensing applications,” in VERDIKT Conference Abstract Book 2008, Bergen, Norway, October 2008 (abstract and oral presentation only).

 

23.  M. Kaynia and G. E. Įien, “Understanding and improving the performance of MAC protocols in wireless ad hoc networks,” in VERDIKT Conference Abstract Book 2008, Bergen, Norway, October 2008 (abstract, poster, and oral presentation).

 

24.  J. Rasool and G. E. Įien, “Multiuser MIMO based airport,” in VERDIKT Conference Abstract Book 2008, Bergen, Norway, October 2008 (abstract and poster only).

 

25.  C. Wang, L. Yin and G. E. Įien, “Energy-efficient adaptive route configuration for MPSK-based wireless sensor networks,” in VERDIKT Conference Abstract Book 2008, Bergen, Norway, October 2008 (abstract and poster only).

 

2007:

 

1.      V. Hassel, G. E. Įien, and D. Gesbert, “Throughput Guarantees for Wireless Networks with Opportunistic Scheduling: A Comparative Study,” IEEE Transactions on Wireless Communications, vol. 6, no. 12, pp. 4215 – 4220, December 2007.

 

2.     A. Svensson, G. E. Įien, M.-S. Alouini, and S. Sampei, “Scanning The Issue: Special Issue on Adaptive Modulation and Transmission in Wireless Systems,” Proceedings of the IEEE  (guest editorial), vol. 95, no. 12, pp. 2269 – 2273, December 2007.

 

3.     D. Gesbert, A. GjendemsjŅ, S. G. Kiani, and G. E. Įien, “Adaptation, Coordination, and Distributed Resource Allocation in Interference-Limited Wireless Networks,” Proceedings of the IEEE (invited paper), vol. 95, no. 12, pp. 2393 – 2409, December 2007.

 

4.     F. BŅhagen, P. Orten, and G. E. Įien, “Optimal Design of Uniform Rectangular Antenna Arrays for Strong Line-of-Sight Channels,” EURASIP Journal on Wireless Communications and Networking – Special Issue on Smart Antennas for Next-Generation Wireless Systems, vol. 2007, Article ID 45084, 10 pages, 2007. DOI: 10.1155/2007/45084.

 

5.     V. Hassel, M.-S. Alouini, D. Gesbert, and G. E. Įien, “A Threshold-Based Channel State Feedback Algorithm for Modern Cellular Systems,” IEEE Transactions on Wireless Communications, vol. 6, no. 7, pp. 2422 – 2426, July 2007.

 

6.     B. Holter and G. E. Įien, “Impact of Spatial Correlation on Adaptive Coded Modulation Performance in Rayleigh Fading,” IEEE Transactions on Vehicular Technology, vol. 56, no. 3, pp. 1176-1186, May 2007.

 

7.     F. BŅhagen, P. Orten, and G. E. Įien, “Design of Capacity-Optimal High-Rank Line-of-Sight MIMO Channels,” IEEE Transactions on Wireless Communications, vol. 6, no. 4, pp. 1420-1425, April 2007.

 

8.     D. V. Duong and G. E. Įien, “Optimal Pilot Spacing and Power in Rate-Adaptive MIMO Diversity Systems with Imperfect CSI,” IEEE Transactions on Wireless Communications, vol. 6, no. 3, pp. 845-851, March 2007.

 

9.     A. GjendemsjŅ, H.-C. Yang, G. E. Įien, and M.-S. Alouini, “Joint adaptive modulation, diversity combining, and power control for downlink transmission in two-cell wireless networks,” in Proc. Asilomar Conference on Signals, Systems, and Computers 2007, Pacific Grove, USA, November 2007 (invited).

 

10.  V. Hassel, S. de la Kethulle de Ryhove, and G. E. Įien, “Wireless scheduling algorithms for increased throughput guarantees in wireless networks,” in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

11.  A. GjendemsjŅ, H.-C. Yang, M.-S. Alouini, and G. E. Įien, “Joint adaptive modulation, diversity combining, and power control for uplink transmission in two-cell wireless networks,” in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

12.  E. Krogsveen, C. Wang, G. E. Įien, and S. Lindfors, “Energy-efficient adaptive route configuration in short-range wireless ad-hoc networks,” in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

13.  L. Yin, C. Wang, and G. E. Įien, “Energy consumption optimization in data transmission from correlated sensor nodes,” in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

14.  A. Havashki, P. G. Kjeldsberg, G. E. Įien, L. Lundheim, and J. T. Nymoen, “On the impact of fixed point DSP implementation on required channel estimator complexity in communication receivers,” in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

15.  A. GjendemsjŅ, G. E. Įien, and D. Gesbert, “Binary power control for multi-cell capacity maximization,” in Proc. IEEE SPAWC 2007, Helsinki, Finland, June 2007.

 

16.  F. Hekland, G. E. Įien, and T. A. Ramstad, “Quantifying performance losses in source-channel coding,” in Proc. 13th European Wireless Conference (EW-2007), Paris, France, April 2007.

 

17.  S. G. Kiani, G. E. Įien, and D. Gesbert, “Maximizing multi-cell capacity using distributed power allocation and scheduling,” in Proc. IEEE WCNC 2007, Hong Kong, China, March 2007.

 

18.  S. de la Kethulle de Ryhove and G. E. Įien, “Rate-optimal power adaptation in peak and average power constrained fading channels,” in Proc. IEEE WCNC 2007, Hong Kong, China, March 2007.

 

19.  A. GjendemsjŅ, H.-C. Yang, G. E. Įien, and M.-S. Alouini, “Minimum selection GSC with adaptive modulation and post-combining power control,” in Proc. IEEE WCNC 2007, Hong Kong, China, March 2007.

 

20.  A. GjendemsjŅ, S. de la Kethulle de Ryhove, and G. E. Įien, “A cross-layer comparison of two design philosophies for discrete-rate adaptive transmission,” Temporary Document TD(07)312, 3rd MCM, COST Action 2100 Pervasive Mobile and Ambient Wireless Communications, Duisburg, Germany, September 10 - 12, 2007.

 

21.  A. GjendemsjŅ, D. Gesbert, G. E. Įien, and S. G. Kiani, “Binary power control for multi-link capacity maximization,” Temporary Document TD(07)018, 2nd MCM, COST Action 2100 Pervasive Mobile and Ambient Wireless Communications, Lisbon, Portugal, February 26 – 28, 2007.

 

22.  F. BŅhagen, P. Orten, and G. E. Įien, “Design of capacity-optimal high-rank, line-of-sight MIMO channels,” Research Report, Department of Informatics, University of Oslo, February 2007. Available from http://www.digbib.uio.no/ .

 

23.  F. BŅhagen, P. Orten, and G. E. Įien, “Modeling and analysis of a 40 GHz MIMO system for fixed wireless access,” Research Report, Department of Informatics, University of Oslo, February 2007. Available from http://www.digbib.uio.no/ .

 

2006:

 

1.     G. E. Įien and T. Javornik (eds.), “Rate-adaptive systems and link adaptation,” Section 3.6 (pp. 90 – 107) in Chapter 3 Signal Processing of L. Correia (ed.): Mobile Broadband Multimedia Networks: Techniques, Models and Tools for 4G. Elsevier Press, ISBN 0-12-369422-1, April 28, 2006.

 

2.     V. Hassel, M.-S. Alouini, G. E. Įien, and D. Gesbert, “Rate-Optimal Multiuser Scheduling with Reduced Feedback Load and Analysis of Delay Effects,” in EURASIP Journal on Wireless Communications and Networking – Special Issue on Radio Resource Management in 3G+ Systems, vol. 2006, Article ID 36424, 7 pages, 2006. DOI:10.1155/WCN/2006/36424.

 

3.     D. V. Duong, G. E. Įien, and K. J. Hole, “Adaptive Coded Modulation with Receive Antenna Diversity and Imperfect Channel Knowledge at Receiver and Transmitter,” in IEEE Transactions on Vehicular Technology, vol. 55, no. 2, pp. 458 – 465, March 2006.

 

4.     V. Hassel, G. E. Įien, and D. Gesbert, “Throughput guarantees for wireless networks with opportunistic scheduling,” in Proc. IEEE Globecom 2006, San Francisco, USA, November 2006.

 

5.     F. BŅhagen, P. Orten, and G. E. Įien, “On spherical vs. plane wave modelling of line-of-sight MIMO channels,” in Proc. IEEE Globecom 2006, San Francisco, USA, November 2006.

 

6.     B. Holter and G. E. Įien, “Performance analysis of a rate-adaptive dual-branch switched diversity system,” in Proc. IEEE VTC Fall 2006, Montreal, Canada, September 2006.

 

7.     D. V. Duong, B. Holter, and G. E. Įien, “Optimization and performance analysis of SIMO systems with adaptive coded modulation in spatially correlated Rayleigh fading,” in Proc. IEEE VTC Fall 2006, Montreal, Canada, September 2006.

 

8.     F. BŅhagen, P. Orten, and G. E. Įien, “Modeling of line-of-sight 2x2 MIMO channels: Spherical versus plane waves,” in Proc. IEEE PIMRC 2006, Helsinki, Finland, September 2006.

 

9.     V. Hassel, G. E. Įien, and D. Gesbert, “Throughput guarantees for different opportunistic scheduling algorithms: A comparative study,” in Proc. International Telecommunications Symposium (ITS) 2006, Fortaleza, Brazil, September 2006.

 

10.  B. Holter and G. E. Įien, “Impact of spatial correlation on adaptive coded modulation performance in Rayleigh fading,” in Proc. International Telecommunications Symposium (ITS) 2006, Fortaleza, Brazil, September 2006.

 

11.  S. G. Kiani, D. Gesbert, J. E. KirkebŅ, A. GjendemsjŅ, and G. E. Įien, “A simple greedy scheme for multi-cell capacity maximization,” in Proc. International Telecommunications Symposium (ITS-2006), Fortaleza, Brazil, September 2006.

 

12.  F. BŅhagen, P. Orten, and G. E. Įien, “Optimal design of uniform planar antenna arrays for strong line-of-sight MIMO channels,” in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

13.  S. de la Kethulle de Ryhove and G. E. Įien, “Capacity-achieving input phase distributions for noncoherent Rayleigh fading channels with memory,” in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

14.  A. GjendemsjŅ, H.-C. Yang, M.-S. Alouini, and G. E. Įien, “Joint adaptive transmission and combining with optimized rate and power allocation,” in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

15.  S. de la Kethulle de Ryhove and G. E. Įien, “Maximising the average spectral efficiency of dual-branch MIMO communication systems with discrete rate adaptation,” in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

16.  A. GjendemsjŅ, G. E. Įien, and P. Orten, “Optimal discrete power control for adaptive coded modulation schemes with capacity-approaching component codes,” in Proc. IEEE ICC 2006, Istanbul, Turkey, June 2006.

 

17.  V. Hassel, M. R. Hanssen, and G. E. Įien, “Spectral efficiency and fairness for opportunistic round robin scheduling,” in Proc. IEEE ICC 2006, Istanbul, Turkey, June 2006.

 

18.  S. de la Kethulle de Ryhove and G. E. Įien, “A design methodology for link adaptation schemes using constellations of constant PAPR,” in Proc. IEEE ICC 2006, Istanbul, Turkey, June 2006.

 

19.  A. GjendemsjŅ, D. Gesbert, G. E. Įien, and S. G. Kiani, “Optimal power allocation and scheduling for two-cell capacity maximization,” in Proc. RAWNET 2006 (2nd WiOpt Workshop on Resource Allocation in Wireless NETworks), Boston, USA, April 2006.

 

20.  V. Hassel, H. Koubaa, and G. E. Įien, “Feedback protocols for increased multiuser diversity gain in cellular ALOHA-based networks – A comparative study,” Technical Report, Norwegian University of Science and Technology, Trondheim, Norway, Nov. 2006.

 

2005:

 

1.     B. Holter and G. E. Įien, “On the Amount of Fading in MIMO Diversity Systems,” IEEE Transactions on Wireless Communications, vol. 4, no. 5, pp. 2498 – 2507, Sept. 2005.

 

2.     A. GjendemsjŅ, G. E. Įien, and H. Holm, “Optimal power control for discrete-rate link adaptation schemes with capacity-approaching coding,” in Proc. IEEE Globecom 2005, St. Louis, Missouri, USA, November 2005.

 

3.     D. V. Duong, G. E. Įien, and K. J. Hole, “Adaptive trellis-coded modulation with receive antenna diversity and imperfect channel knowledge at both receiver and transmitter,” in Proc. EUSIPCO-2005, Antalya, Turkey, September 2005.

 

4.     V. Hassel, M.-S. Alouini, G. E. Įien, and D. Gesbert, “Rate-optimal multiuser scheduling with reduced feedback load and analysis of delay effects,” in Proc. EUSIPCO-2005, Antalya, Turkey, September 2005.

 

5.     H. Koubaa, V. Hassel, and G. E. Įien, “Contention-less feedback for multi-user diversity scheduling,” in Proc. IEEE VTC Fall 2005, Dallas, Texas, USA, September 2005.

 

6.     D. V. Duong, B. Holter, and G. E. Įien, “Optimal pilot spacing and power in rate-adaptive MIMO diversity systems with imperfect transmitter CSI,” in Proc. IEEE SPAWC-2005, New York, USA, June 2005.

 

7.     F. BŅhagen, P. Orten, and G. E. Įien, “On the Shannon capacity of dual MIMO systems in Ricean fading,” in Proc. IEEE SPAWC-2005, New York City, USA, June 2005.

 

8.     H. Koubaa, V. Hassel, and G. E. Įien, “Multiuser diversity gain enhancement by guard time reduction,” in Proc. IEEE SPAWC-2005, New York City, USA, June 2005.

 

9.     V. Hassel, M.-S. Alouini, D. Gesbert, and G. E. Įien, “Exploiting multiuser diversity using multiple feedback thresholds,” in Proc. IEEE VTC Spring 2005, May/June 2005.

 

10.  F. BŅhagen, P. Orten, and G. E. Įien, “Modeling and analysis of a 40 GHz MIMO system for fixed wireless access,” in Proc. IEEE VTC Spring 2005, Stockholm, Sweden, May/June 2005.

 

11.  S. de la Kethulle de Ryhove, G. E. Įien, and F. BŅhagen, “Subchannel SNR distributions in dual-branch MIMO systems,” in Proc. IEEE/ITG International Workshop on Smart Antennas, Duisburg, Germany, April 2005.

 

12.  F. Hekland, G. E. Įien, and T. A. Ramstad, “Using 2:1 Shannon mapping for joint source-channel coding,” in Proc. Data Compression Conference 2005, Snowbird, Utah, USA, March 2005.

 

13.  F. BŅhagen, P. Orten, and G. E. Įien, “Construction and capacity analysis of high-rank line-of-sight MIMO channels,” in Proc. IEEE WCNC-2005, New Orleans, LA, USA, March 2005.

 

14.  D. V. Duong, M. Ā. Wingar, and G. E. Įien, “Link adaptation in correlated antenna diversity environments,” in Proc. Norwegian Signal Processing Symposium (NORSIG) 2005, Stavanger, Norway, September 2005.

 

15.  S. de la Kethulle de Ryhove and G. E. Įien. “Energy-optimised coded modulation for short-range wireless communications on Nakagami-m fading channels,in Proc. Norwegian Signal Processing Symposium (NORSIG) 2005, Stavanger, Norway, September 2005.

 

16.  H. Koubaa, V. Hassel, and G. E. Įien, “Multiuser diversity gain enhancement by guard time reduction,” Temporary Document no. TD(05)-038, 12th Management Committee Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Bologna, Italy, January 20 – 21, 2005.

 

17.  D. V. Duong, G. E. Įien, and K. J. Hole, “Adaptive trellis-coded modulation with receive antenna diversity and imperfect channel knowledge at both receiver and transmitter,” Temporary Document TD(05)-009, 12th Management Committee Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Bologna, Italy, January 20 – 21, 2005.

 

2004:

 

1.     G. E. Įien, “Radio interface and access technologies for mobile and wireless systems beyond 3G,” invited paper in Telektronikk vol. 100, no. 3, pp. 55 – 68, November 2004.

 

2.     G. E. Įien, H. Holm, and K. J. Hole, “Impact of Channel Prediction on Adaptive Coded Modulation Performance in Rayleigh Fading,” in IEEE Transactions on Vehicular Technology, vol. 53, no.3, pp. 758 – 769, May 2004.

 

3.     B. Holter, M.-S. Alouini, G. E. Įien, and H.-C. Yang,Multiuser switched diversity transmission,in Proc. IEEE VTC Fall 2004, Los Angeles, CA, USA, September 2004.

 

4.     O. Jetlund, G. E. Įien, H. Holm, and K. J. Hole, “Spectral efficiency bounds for adaptive coded modulation with outage probability constraints and imperfect channel prediction,” in Proc. Nordic Radio Symposium 2004, Oulu, Finland, August 2004.

 

5.     D. V. Duong and G. E. Įien, “Adaptive coded modulation with imperfect channel state information at the receiver and transmitter”, in Proc. Nordic Radio Symposium 2004, Oulu, Finland, August 2004.

 

6.     G. E. Įien, N. Holte, S. Andresen, T. Svendsen, and M. Hammer, “Communication technology towards 2020.” Position paper, The Faculty of Information Technology, Mathematics, and Electrical Engineering, NTNU, Spring 2004. In Proc. INFOSAM-2020 conference, NTNU, April 19th – 20th, 2004. 6 pages.

 

7.     O. Jetlund, G. E. Įien, and H. Holm, “Switching thresholds for robust adaptive coded modulation with predicted channel state information: A step towards an analytical solution”, Temporary Document no. TD(04)-34, 9th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Athens, Greece, January 26 - 28, 2004. 12 pages.

 

2003:

 

 

1.     F. BŅhagen, G. E. Įien, M.-S. Alouini, and K. J. Hole, “Bounds on average area spectral efficiency for adaptive coded modulation in cellular networks,” in Proc. 6th Baiona Workshop on Signal Processing in Communications, Baiona, Spain, September 8-10, 2003.

 

2.     M. Kang, M.-S. Alouini, and G. E. Įien, “How accurate are the Gaussian and Gamma approximations to the outage capacity of MIMO channels?,in Proc. 6th Baiona Workshop on Signal Processing in Communications, Baiona, Spain, September 8-10, 2003.

 

3.     H. Holm, G. E. Įien, M.-S. Alouini, D. Gesbert, and K. J. Hole, “Optimal design of adaptive coded modulation schemes for maximum average spectral efficiency,” in Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications 2003 (SPAWC-2003), Rome, Italy, June 15-18, 2003.

 

4.     L. Yang, M.-S. Alouini, and G. E. Įien, “Performance of buffered adaptive transmission,” in Proc. COST 273 Workshop on Broadband Wireless Local Access, pp. 15/1 – 15/6, Paris, France, May 21-22, 2003.

 

5.     B. Holter, G. E. Įien, K. J. Hole, and H. Holm,Limitations in spectral efficiency of a rate-adaptive MIMO system utilizing pilot-aided channel prediction,” in Proc. IEEE Vehicular Technology Conference Spring 2003 (VTC Spring 2003), Jeju Island, Korea, April 2003.

 

6.     O. Jetlund, G. E. Įien, K. J. Hole, and B. Holter, “Adaptive Gallager coded modulation scheme on Rayleigh fading channels: Comparison of simulated and theoretical performance,” in Proc. Norwegian Signal Processing Symposium 2003 (NORSIG-03), Bergen, Norway, October 2003.

 

 

7.     O. Jetlund, G. E. Įien, B. Holter, and K. J. Hole, “Optimal Channel Prediction in an Adaptive Gallager Coded Modulation Scheme on Rayleigh Fading Channels,” Temporary Document no. TD(03)-127, 7th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Paris, France, May 21 - 23, 2003. 18 pages.

 

8.     O. Jetlund, G. E. Įien, and K. J. Hole, “Adaptive Gallager coded modulation on Rayleigh fading channels: Comparison of simulated and theoretical performance,” Temporary Document no. TD(03)-040, 6th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Barcelona, Spain, January 15 - 17, 2003. 12 pages.

 

2002:

 

1.     G. E. Įien, “Information theory: The foundation of modern telecommunications,” in Telektronikk vol. 98, no. 1, pp. 3 – 19, July 2002.

 

2.     K. J. Hole, H. Holm, and G. E. Įien, “Performance analysis of adaptive coded modulation with antenna diversity and feedback delay,” in Telektronikk vol. 98, no. 1, pp. 106 – 113, July 2002.

 

3.     K. J. Hole, G. E. Įien, and H. Holm, “Adaptive coded modulation for wireless OFDM channels: Upper bounds on average spectral efficiency and influence of imperfect channel knowledge,” in Proc. IEE Conference on Getting the Most out of the radio Spectrum, London, UK, October 4-7, 2002.

 

4.     G. E. Įien, R. K. Hansen, D. V. Duong, H. Holm, and K. J. Hole, “Bit error rate analysis of adaptive coded modulation with mismatched and complexity-limited channel prediction,” in Proc.  5th IEEE Nordic Signal Processing Symposium, Hurtigruten, Norway, October 2002.

 

5.     B. Holter and G. E. Įien, “The optimal weights of a maximum ratio combiner using an eigenfilter approach,” in Proc.  5th IEEE Nordic Signal Processing Symposium, Hurtigruten, Norway, October 2002.

 

6.     G. E. Įien, H. Holm, and K. J. Hole, “Adaptive coded modulation with imperfect channel state information: System design and performance analysis aspects,” invited paper (extended 2-page abstract) in Proc. IEEE International Symposium on Advances in Wireless Communications, Victoria, Canada, September 2002.

 

7.     G. E. Įien, H. Holm and K. J. Hole, “Channel prediction for adaptive coded modulation in Rayleigh fading,” in Proc. EURASIP European Signal Processing Conference (EUSIPCO-2002), Toulouse, France, September 2002.

 

8.     B. Myhre, V. Markhus and G. E. Įien, “LPDC-coded adaptive modulation on slowly varying Nakagami-fading channels,” in Proc. European Wireless 2002, pp. 822 - 828, Florence, Italy, February, 2002.

 

9.     G. E. Įien, K. J. Hole, N. Holte, T. A. Ramstad, and B. Holter, “Bandwidth-efficient and adaptive transmission schemes for wireless multimedia communications,” invited paper in Proc. 2nd International Workshop on Research Directions in Mobile Communications and Services, Grimstad, Norway, September 2002.

 

10.  O. Jetlund, G. E. Įien, K. J. Hole, V. Markhus, and B. Myhre, “Rate-adaptive coding and modulation with LDPC component codes,” Temporary Document no. TD(02)-108, 5th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Lisbon, Portugal, September, 2002. 15 pages.

 

11.  G. E. Įien, H. Holm, and K. J. Hole, “Adaptive coded modulation enhanced by channel prediction and antenna diversity,” Temporary Document no. TD(02)-054, 4th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Espoo, Finland, May, 2002. 17 pages.

 

12.  G. E. Įien, Informasjonsteori, koding og kompresjon. Lecture notes for siv.ing. course SIE2035 Information theory, coding, and compression, TAPIR Kompendieforlaget. 3rd ed., August 2002. 192 pages (partly in Norwegian).

 

2001:

 

1.     K. J. Hole and G. E. Įien, Spectral Efficiency of Adaptive Coded Modulation in Urban Microcellular Networks,” IEEE Transactions on Vehicular Technology, vol. 50, no. 1, pp. 205-222, Jan. 2001.

 

2.     K. J. Hole and G. E. Įien, Adaptive channel coding and modulation: A key to bandwidth-efficient multimedia communications in future wireless systems”. Invited paper, Telektronikk (special issue on “Wireless Future”) vol. 97, no. 1, pp. 49 – 57, May 2001.

 

3.     K. J. Hole, H. Holm, and G. E. Įien, Analysis of adaptive coded modulation with antenna diversity and feedback delay,” in Proc. IST Mobile Communications Summit 2001, pp. 865-870, Sitges, Spain, September 2001.

 

4.     K. J. Hole, G. E. Įien, B. RislŅw, and P. Orten, “Rate-adaptive modulation and coding in fixed Ka-band satellite communications: A feasibility study,” in Proc. Nordic Radio Symposium 2001 (NRS-01), Nynäshamn, Sweden, April 2001.

 

5.     G. E. Įien and K. J. Hole, “Maximum average spectral efficiency for slowly varying Rayleigh fading channels with pilot-symbol-assisted channel estimation,” in Proc. 4th European Personal Mobile Communications Conference (EPMCC-2001), Wien, Austria, February 2001. CD-ROM proceedings only.

 

6.     B. Myhre, V. Markhus, and G. E. Įien, “LDPC coded adaptive multilevel modulation for slowly varying Rayleigh-fading channels,” in Proc. Norwegian Signal Processing Symposium 2001 (NORSIG-01), Trondheim, Norway, October 2001.

 

7.     G. E. Įien and T. A. Ramstad, “On the role of Wiener filtering in quantization and DPCM,” in Proc. Norwegian Signal Processing Symposium 2001 (NORSIG-01), Trondheim, Norway, October 2001.

 

2000:

 

1.     K. J. Hole, H. Holm, and G. E. Įien, “Adaptive Multidimensional Coded Modulation for Flat Fading Channels,” IEEE Journal on Selected Areas in Communications, vol. 18, no. 7, pp. 1153-1158, July 2000.

 

2.     G. E. Įien and N. Holte, Digital kommunikasjon. Lecture notes for external course Digital Communications, Dept. of Telecommunications, NTNU, August 2000 (partly in Norwegian).

 

1999:

 

1.     H. Holm, K. J. Hole, and G. E. Įien, “Spectral efficiency of variable-rate coded QAM for flat fading channels,” in Proc. NORSIG-99, Asker, Norway, pp. 130 – 135, September 1999.

 

2.     J. Noll, P.-H. Lehne, G. E. Įien, A. Perkis, K. Grythe, L. Lundheim, and N. Stol, “Research and development of a UMTS demonstrator in Norway,” BT Alliance Engineering Symposium 1999, Oslo, June 1999.

 

3.     G. E. Įien, “Introduction to channel coding”. Additional lecture notes for siv. ing. course 42521 Information and Coding Theory, Dept. of Telecommunications, NTNU, Fall 1999.

 

4.     G. E. Įien and T.A. Myrvoll, Informasjonsteori og feilkorrigerende koding, Del 1: Informasjonsteori. Lecture notes for siv.ing. course 42521 Information and Coding Theory, Department of Telecommunications, NTNU. 2nd ed., August 1999. 119 pages (in Norwegian).

 

5.     G. E. Įien, “Source and channel coding”, chapter 4 in lecture notes for annual ATHENS-organized intensive course on Digital Signal Processing in Telecommunications Systems (ed. Tor A. Ramstad, various authors), Dept. of Telecommunications, NTNU, 1999. 51 pages.

 

1998:

 

1.     G. E. Įien and S. LepsŅy, “On the benefits of basis orthogonalization in fractal compression,” in Y. Fisher (ed.): Fractal Image Encoding and Analysis, pp. 65 - 88. Springer Verlag, ISBN 3-540-63196-8, March 1998.

 

2.     G. E. Įien and G. NĆrstad, “Fractal compression of ECG signals,” in Y. Fisher (ed.): Fractal Image Encoding and Analysis, pp. 201 - 226. Springer Verlag, ISBN 3-540-63196-8, March 1998.

 

3.     S. LepsŅy, P. Carlini, and G. E. Įien, “On fractal compression and vector quantization,” in Y. Fisher (ed.): Fractal Image Encoding and Analysis, pp. 21 - 48. Springer Verlag, ISBN 3-540-63196-8, March 1998.

 

4.     I. Balasingham, T. Ramstad, M. Adams, F. Kossentini, H. Coward, A. Perkis and G. E. Įien, “Performance evaluation of different filter banks in the JPEG-2000 baseline system,” in Proc. ICIP-98 (IEEE International Conference of Image Processing),  Chicago, USA, October 1998.

 

5.     A. Perkis, H. Coward, T. Ramstad, G. E. Įien, and I. Balasingham, “JPEG2000 in mobile and wireless communications,” in Proc. 3rd ACTS Mobile Summit, Rhodos, Greece, June 1998.

 

6.     H. Coward, A. Perkis, T. Ramstad, G. E. Įien, and I. Balasingham, “Robustness against channel errors in JPEG2000,” in Proc. 3rd IEEE Nordic Signal Processing Symposium (NORSIG-98), Lyngby, Denmark, June 1998.

 

7.     A. Perkis, G. E. Įien, T. A. Ramstad, and T. Halbach, “Fixed Length Coding by Nonuniform Scalar Quantization in JPEG2000,” ISO/IEC JTC 1/SC 29/WG 1 Document no. N 851. July 1998.

 

8.     A. Perkis, G. E. Įien, and T. A. Ramstad, “Impact of Fixed Length Coding (FLC) versus Variable Length Coding (VLC) in JPEG2000,” ISO/IEC JTC 1/SC 29/WG 1 Document no. N 738. March 1998.

 

9.     H. Coward, T. A. Ramstad, G. E. Įien, and A. Perkis, “Multilevel Signaling,” ISO/IEC JTC 1/SC 29/WG 1 Document no. N 739. March 1998.

 

10.  I. Balasingham, T. A. Ramstad, A. Perkis, and G. E. Įien, “Performance of Different Filter Banks and Wavelet Transforms,” ISO/IEC JTC 1/SC 29/WG 1 Document no. N 740. March 1998.

 

1997:

 

1.     G. E. Įien, “Information theory: The foundation of modern communications,” in Proc. NORSIG-97, TromsŅ, Norway, May 1997.

 

1996:

 

1.     G. E. Įien, H. KrĆkeland, and G. NĆrstad, “Fast fractal-based ECG signal compression,” in Proc. IEEE International Conference on Engineering in Medicine and Biology, Amsterdam, Holland, October 1996.

 

2.     G. E. Įien, R. Hamzaoui, and D. Saupe, “On the limitations of fractal image texture coding,” Proc. 2nd IEEE Nordic Signal Processing Symposium (NORSIG-96), Espoo, Finland, September 1996.

 

3.     G. E. Įien, N. A. Bertelsen, T. EftestŅl, and J. H. HusŅy, “ECG rhythm classification using artificial neural networks,” in Proc. IEEE DSP Workshop, Loen, Norway, September 1996.

 

4.     G. E. Įien and A. LŅvendahl, “Vector quantization of ECG signals,” in Proc. International Symposium on Digital Signal Processing, London, UK, July 1996.

 

5.     Ā. Eriksen, H. Heimvoll, P. A. Linnerud, and G. E. Įien, “Digital signal processing: Processors and tools,” EKF-rapport EKF R-98, techn. rep., Elektronikkindustriens Konstruksjonsforum (EKF), 1996. 216 pages (in Norwegian).

 

 

1995:

 

1.     G. E. Įien and S. LepsŅy, “A class of fractal image coders with fast decoder convergence.” in Y. Fisher (ed.): Fractal Image Compression: Theory and Applications (Springer Verlag), pp. 157 - 179, January 1995.

 

2.     S. LepsŅy and G. E. Įien, “Fast attractor image encoding by adaptive codebook clustering.” in Y. Fisher (ed.): Fractal Image Compression: Theory and Applications (Springer Verlag), pp. 181 - 201, January 1995.

 

3.     G. E. Įien and P. Osnes, “Diabetic retinopathy: Automatic detection of early symptoms from digital retinal images,” in Proc. NORSIG-95, Stavanger, Norway, September 1995.

 

1994:

 

1.     G. E. Įien and S. LepsŅy, “Fractal-Based Image Coding with Fast Decoder Convergence,” Signal Processing, vol. 40, pp. 105-117, 1994.

 

2.     G. E. Įien, “Parameter quantization in fractal image coding,” in Proc. IEEE ICIP-94 (1st IEEE International Conference on Image Processing), USA, November 1994.

 

3.     G. E. Įien and S. LepsŅy, “Analysis of a complexity reduction algorithm in fractal image coding,” in Proc. ICSPAT-94 (5th International Conference on Signal Processing Applications and Technology), pp. 910-915, Dallas, USA, October 1994.

 

4.     G. E. Įien, Z. Baharav, S. LepsŅy, E. Karnin, and D. Malah, “A new improved collage theorem with applications to multiresolution fractal image coding,” in Proc.  IEEE ICASSP-94 (IEEE International Conference on Acoustics, Speech and Signal Processing), vol. 5, pp. 565-568, May 1994.

 

5.     G. E. Įien, “Parameter quantization in fractal image coding,” in Proc. 1st IEEE Nordic Signal Processing Symposium (NORSIG-94), pp. 252-257, Ālesund, Norway, June 1994.

 

1993:

 

1.     G. E. Įien and S. LepsŅy, “Improving the decoder in a fractal image compression method,” in Proc. COST No. 229 WG.1+2 2nd Vigo Workshop on Adaptive Methods and Emergent Techniques for Signal Processing and Communications, pp. 326 – 334, Bayona, Spain, June 1993.

 

2.     S. LepsŅy, G. E. Įien, and T. A. Ramstad, “Attractor image compression with a fast noniterative decoding algorithm,” in Proc. IEEE ICASSP-93, pp. V-337 - V-340, Minneapolis, USA, April 1993.

 

3.     P. Waldemar, G. E. Įien, and T. A. Ramstad, “Fast image coding by nonlinear contractive transformations,” in Proc. IEEE Winter Workshop on Nonlinear Digital Signal Processing, p. 13.1, Tampere, Finland, January 1993.

 

4.     G. E. Įien, S. LepsŅy, and T. A. Ramstad, “Fractal-based image compression: Status report 1993,” in Proc. NORSIG-93, Lillehammer, Norway, February 1993 (in Norwegian).

 

5.     G. E. Įien, L2-Optimal Attractor Image Coding with Fast Decoder Convergence. Dr. ing. thesis, NTH, April 1993. Supervisor: Prof. Tor A. Ramstad.

 

1992:

 

1.     G. E. Įien, S. LepsŅy, and T. A. Ramstad, “Reducing the complexity of a fractal-based image coder,” in Proc. EUSIPCO-92 (The European Signal Processing Conference), pp. 1353-1356, Brussels, Belgium, August 1992.

 

2.     S. LepsŅy og G. E. Įien, “Attractor image compression featuring direct attractor optimization and noniterative decoding,” in Proc. Norwegian Conference on Industrial Mathematics (INDUMAT-92), Trondheim, Norway, August 1992.

 

3.     G. E. Įien, A. Sollid, and T. A. Ramstad, “Hybrid image compression combining attractor coding and transform coding,” in Proc. Norwegian Image Compression Conference (NOBIM-92), pp. 286-293, Trondheim, Norway, 1992.

 

1991:

 

1.     G. E. Įien, S. LepsŅy, and T. A. Ramstad, “An inner product space approach to image coding by contractive transformations,” in Proc. IEEE ICASSP-91, pp. 2773-2776, Toronto, Canada, May 1991.

 

1989:

 

1.     G. E. Įien, “Automatic voice recognition: Theoretical foundations and signal processor implementation of a vector quantization based algorithm.” MScEE thesis, NTH, April 1989 (in Norwegian).