Publications

Journal papers

1. I. Hadj Kacem, N. Sellami, A. Roumy, I. Fijalkow. Training sequence length optimization for a turbo-detector using decision-directed channel estimation. Research Letters in Communications, Article ID 860368, 2008.
2. N. Sellami, A. Roumy, I. Fijalkow. A proof of convergence of the MAP turbo-detector to the AWGN case. IEEE Trans. on Signal Processing, accepted for publication, 56(4):2716-2724, April 2008.
3. A. Roumy, D. Declercq. Characterization and Optimization of LDPC codes for the 2-user Multiple Access Channel. EURASIP Journal on Wireless Communications and Networking, Article ID 74890, 2007.
4. A. Roumy, D. Gesbert. Optimal matching in wireless sensor networks. IEEE Journal on Selected Topics in Signal Processing, Special issue on Convex Optimization Methods in Signal Processing, pages 725-735, December 2007.
5. N. Sellami, A. Roumy, I. Fijalkow. The impact of both a priori information and channel estimation errors on the MAP equalizer performance. IEEE Trans. on Signal Processing, pages 2716-2724, July 2006.
6. A. Roumy, S. Guemghar, G. Caire, S. Verdu. Design Methods for Irregular Repeat-Accumulate Codes. IEEE Trans. on Information Theory, pages 1711-1727, August 2004.
7. G. Caire, S. Guemghar, A. Roumy, S. Verdu. Maximizing the spectral efficiency of coded CDMA under successive decoding. IEEE Trans. on Information Theory, pages 152-164, January 2004.
8. A. Roumy, I. Fijalkow, D. Pirez. Low-Cost Turbo Receiver for Coded Asynchronous DS-CDMA in Frequency Selective Channels. Journal of Comm. and Networks, pages 202-210, September 2001.

Book Chapters

1. C. Guillemot, A. Roumy. Distributed Source Coding: Theory, Algorithms, and Applications. Chapter 6. Toward constructive Slepian-Wolf coding schemes.. P. L. Dragotti, M. Gastpar (eds.), Chap. 6, Elsevier Inc, 0.

Conference papers

1. V. Toto-Zarasoa, A. Roumy, C. Guillemot. Rate-adaptive codes for the entire Slepian-Wolf region and arbitrarily correlated sources. In IEEE Int. Conference on Acoustics, Speech and Signal Processing, ICASSP, April 2008.
2. I. Hadj Kacem, N. Sellami, A. Roumy, I. Fijalkow. Training sequence optimization for frequency selective channels with MAP equalization. In IEEE International Symposium on Communications, Control and Signal Processing ISCCSP, Pages 532-537, Malta, March 2008.
3. O. Dabeer, A. Roumy, C. Guillemot. Linear Transceivers for Sending Correlated Sources Over the Gaussian MAC. In National Communication Conference, 2007.
4. A. Roumy, K. Lajnef, C. Guillemot. Rate-adaptive turbo-syndrome scheme for Slepian-Wolf Coding. In 41st Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, November 2007.
5. S. Chaabouni, N. Sellami, A. Roumy. The Impact of a priori information on the MAP equalizer performance with M-PSK modulation. In Proc.of 15th European Signal Processing conference, EUSIPCO, Poznan, Poland, September 2007.
6. A. Roumy, D. Gesbert. Optimal matching in wireless sensor networks. In IEEE International Symposium on Information Theory, June 2007.
7. T. Banerjee, A.A. Kherani, M. Debbah, A. Roumy. Impact of Physical Layer Design on the Deployment of a Sensor Network with Correlated Observations. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, Helsinki, Finland, June 2007.
8. N. Sellami, M. Siala, A. Roumy, I. Kammoun. Generalized MAP: sequence detection for non ideal frequency selective channel knowledge. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Honolulu, USA, April 2007.
9. O. Dabeer, A. Roumy, C. Guillemot. Optimal Distributed Linear Transceivers for Sending Independently Corrupted Copies of a Colored Source Over the Gaussian MAC. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Honolulu, USA, April 2007.
10. S. Chaabouni, N. Sellami, A. Roumy. Lower bounds on the performance of the MAP equalizer with a priori over MIMO systems. In Proc.of ISSPA, International Symposium on Signal Processing and its Applications, Sharjah, UAE, February 2007.
11. N. Sellami, A. Roumy, I. Fijalkow. Convergence analysis of the MAP turbo detector: New representation and convergence to the AWGN case. In Proc.of 14th European Signal Processing conference, EUSIPCO, September 2006.
12. V. Ramon, A. Roumy, C. Herzet, L. Vandendorpe. Calculating the performance degradation of a MMSE/IC turbo-equalization scheme due to SNR estimation errors. In IEEE International Conference on Communications (ICC 2006), June 2006.
13. R. Gaudel, F. Bonnet, J.B. Domelevo-Entfellner, A. Roumy. Noise variance estimation in DS-CDMA and its effects on the individually optimum receiver. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, SPAWC 2006, June 2006.
14. N. Sellami, A. Roumy, I. Fijalkow. Impact de l'a priori sur les performances de l'égaliseur MAP et distribution des LRV extrinsèques. In Proc.of 20th GRETSI Symposium on Signal and Image Processing, September 2005.
15. N. Sellami, A. Roumy, I. Fijalkow. Performance analysis of the MAP equalizer with a priori and distribution of the extrinsic LLRs. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, SPAWC 2005, June 2005.
16. N. Sellami, A. Roumy, I. Fijalkow. Performance analysis of the MAP equalizer within an iterative receiver including a channel estimator. In IEEE Vehicular Technology Conference, VTC'F04, September 2004.
17. M. Koca, E. Fabre, A. Roumy. Turbo Decoding of multiple descriptions with quantized frame expansions. In International Symposium on Image/Video Communications over fixed and mobile networks, ISIVC'04, July 2004.
18. N. Sellami, A. Roumy, I. Fijalkow. On the analysis of the MAP equalizer performance within an iterative receiver. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, SPAWC 2004, July 2004.
19. A. Roumy, D. Declercq, E. Fabre. Low Complexity Code Design for the 2-user Gaussian Multiple Access Channel. In Proc. of ISIT, IEEE Int. Conference on Information Theory, June 2004.
20. A. Roumy, S. Guemghar, G. Caire, S. Verdu. Design Methods for Irregular Repeat Accumulate Codes. In Proc.of ISIT, IEEE Int. Conference on Information Theory, Yokohama, JAPAN, June 2003.
21. G. Caire, S. Guemghar, A. Roumy, S. Verdu. Design approaches for LDPC-encoded CDMA. In Proc.of 39th Annual Allerton Conference on Commun, Control and Computing, Monticello, IL, USA, October 2001.
22. A. Roumy, I. Fijalkow, D. Pirez. Turbo-equalization- Convergence Analysis. In Proc.of Gretsi, 18th Symposium on Signal and Image processing, Toulouse, France, September 2001.
23. A. Roumy, A.J. Grant, I. Fijalkow, P.D. Alexander, D. Pirez. Convergence Analysis for Turbo-equalization. In Proc.of ISIT, IEEE Int. Conference on Information Theory, Washington, DC, USA, June 2001.
24. A. Roumy, A.J. Grant, I. Fijalkow, P.D. Alexander, D. Pirez. Turbo-equalization- Convergence Analysis. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Salt Lake City, USA, May 2001.
25. A. Roumy, I. Fijalkow, D. Pirez. Full Turbo receiver for coded asynchronous DS-CDMA over multipath channel. In Proc.of IEEE 2nd International Symposium on Turbo-codes & Related Topics, Brest, France, September 2000.
26. A. Roumy, I. Fijalkow, D. Pirez. Turbo multiuser detection for coded asynchronous DS-CDMA over frequency selective channels. In Proc.of ISSSTA'00, IEEE Sixth International Symposium on Spread Spectrum Techniques & Applications, Pages 608-612, New Jersey, USA, September 2000.
27. I. Fijalkow, A. Roumy, S. Ronger, D. Pirez, P. Vila. Improved Interference cancellation for Turbo-equalization. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Turkey, June 2000.
28. A. Roumy, I. Fijalkow, D. Pirez. Iterative Multi-user algorithm for convolutionnally coded asynchronous DS-CDMA systems- Turbo-CDMA. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Turkey, June 2000.
29. A. Roumy, I. Fijalkow, D. Pirez. Joint Equalization and Decoding: why choose the iterative solution?. In Proc.of VTC, IEEE 50th Vehicular Technology Conference, Pages 2989-2993, Amsterdam, The Netherlands, September 1999.
30. A. Roumy, I. Fijalkow, D. Pirez, P. Duvaut. Quelques aspects de la Turbo-égalisation. In Proc.of Gretsi, 17th Symposium on Signal and Image processing, Pages 801-804, Vannes, France, September 1999.

Patents

1. A. Roumy, D. Pirez, I. Fijalkow. Procédé et récepteur pour demoduler des signaux provenant de multi-utilisateurs. Patent, September 2000.
2. A. Roumy, D. Pirez, I. Fijalkow. Procédé et récepteur pour ordonner des signaux provenant de multi-utilisateurs. Patent, September 2000.

Thesis

1. A. Roumy. Egalisation et décodage conjoints : méthodes Turbo. PhD Thesis Université de Cergy-Pontoise, October 2000.

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