Interference Reduction Technique in Multistage Multiuser Detector for DS-CDMA System
This paper presents the results related to the
interference reduction technique in multistage multiuser detector for
asynchronous DS-CDMA system. To meet the real-time
requirements for asynchronous multiuser detection, a bit streaming,
cascade architecture is used. An asynchronous multiuser detection
involves block-based computations and matrix inversions. The paper
covers iterative-based suboptimal schemes that have been studied to
decrease the computational complexity, eliminate the need for matrix
inversions, decreases the execution time, reduces the memory
requirements and uses joint estimation and detection process that
gives better performance than the independent parameter estimation
method. The stages of the iteration use cascaded and bits processed
in a streaming fashion. The simulation has been carried out for
asynchronous DS-CDMA system by varying one parameter, i.e.,
number of users. The simulation result exhibits that system gives
optimum bit error rate (BER) at 3rd stage for 15-users.
[1] Lokesh Tharani and Dr. R.P.Yadav, "Performance evaluation of
multistage multiuser detector for asynchronous DS-CDMA system"
IEEE Proceeding of International Conference on Computational
Intelligence and Multimedia Applications 2007 (ICCIMA-07), Volume
IV, page No. 316-321, Sivakasi, Tamilnadu, India,Dec 2007
[2] Andrew J. Viterbi, "CDMA Principles of Spread Spectrum
Communication", Addison Wesley Longman, ISBN: 0201-63374-4.
[3] Sergio Verdu, "Multi-user detection", Cambridge University Press.
ISBN: 0521-59373-5.
[4] Duel-Hallen, J. Holtzman, and Z. Zvonar, "Multi-user detection for
CDMA systems,". IEEE Personal Communications Magazine, April
1995.
[5] Louis G.F. Trichard, " Optimal Multistage Linear Multiuser Receivers",
IEEE Transaction on Wireless Communication, Vol. 4,NO. 3, May
2005
[6] S. Moshavi, "Multi-user detection for DS-CDMA communications--,
IEEE communications magazine, Vol. 34, No. 10, page no. 124-136,
October, 1996.
[7] H. V. Poor, S. Verdu, "Single-user detectors for multiuser channels,"
IEEE Trans. Comm. Vol. 36, no. 1, pp. 50-60, Jan. 1988.
[8] R. Lupas, S. Verdu, "Near-far resistance of multiuser detectors in
asynchronous channels," , IEEE Trans. Comm. Vol. 38, no. 4, pp. 496-
508, April 1990.
[9] Tan F. Wong: "Spread spectrum & CDMA".
www.wireless.ece.ufl.edu/twong/Notes/CDMA/ch6.pdf.
[10] John G. Prokis, "Digital communication", forth edition, McGraw-Hill
International, 2001.
[11] Zartash Afzal Uzmi, "Simplified multiuser detection for CDMA
systems", Ph.D., Thesis, September, 2002
[12] H.Y.Wu and A. Duel-Hallen," Performance comparison of multiuser
detectors with channel estimation for flat rayleigh fading CDMA
channels," Wireless Pres. Communication., July/august 1996
[13] Shridhar Rajgopal, Shrikrishna Bhashyam, Joseph R. Cavallaro and
Behnaam Aazhang, "Real-Time Algorithms and Architectures for
Multiuser Channel Estimation and Detection in Wireless Base Station
Receivers", IEEE Transactions on Wireless Communications, Vol. 1,
No. 3, July 2002.
[14] R..Michael Buehrer, Neiyer S. Correal-Mendoza and Brain D. Woerner,"
A simulation comparison of multiuser receivers for cellular CDMA",
IEEE Transactions on Vehicular Technology, Vol. 49, No. 4, July,
2000.
[15] Lokesh Tharani and Dr. R.P. Yadav, "Non- Linear suboptimal multiuser
detectors for DS-CDMA systems", Proceedings of International
conference on soft computing and Intelligent System (ICSCIS-07),
Jabalpur Engineering College, Jabalpur(M.P.), Vol. 3, page NO. 176-
180, December, 2007.
[16] Cottatellucci, Laura;Debbah, Merouane;Muller, Ralph R, "Linear
multiuser detection for CDMA systems with correlated spatial
diversity", ISCCSP 2006, IEEE 2nd International Symposium on
Communications, Control and Signal Processing, 13-15 March 2006,
Marrakech, Morocco.
[17] Cottatellucci, Laura;Debbah, Merouane;M├╝ller, Ralf R, "Asymptotic
design and analysis of multistage detectors for asynchronous CDMA
systems", ISIT 2004, IEEE International Symposium on Information
Theory, June 27 - July 2, 2004, Chicago, USA , pp 509- 509.
[18] Seung Hee Han and Jae Hong Lee, "Multi-stage partial PIC receivers
for multi_rate DS-CDMA system with multiple modulation," in Proc.
of the IEEE WCNC 2003, pp. 591-594, Mar. 2003.
[19] Jerome M. Shapiro and James Dunyak, "Soft Information in
Interference Cancellation Based Multiuser Detection", submitted for
IEEE transaction on Wireless Communication, July 2005.
[20] Stephen J. Chapman, "MATLAB Programming for Engineering",
Second Edition, Thomson Publication.
[21] A. Rajeswari, K.Gunavathi and A.Shanmugam,"A Selective Survey on
Multiuser Detection Techniques in CDMA Systems", Academic Open
Internet Journal, Volume 13, 2004.
[22] Halil Tanyer Eyyuboglu,"MATLAB Simulation of Multiuser Detection
in CDMA", Proceeding of World Academy of Science, Engineering
and Technology, volume 3, January 2005.
[1] Lokesh Tharani and Dr. R.P.Yadav, "Performance evaluation of
multistage multiuser detector for asynchronous DS-CDMA system"
IEEE Proceeding of International Conference on Computational
Intelligence and Multimedia Applications 2007 (ICCIMA-07), Volume
IV, page No. 316-321, Sivakasi, Tamilnadu, India,Dec 2007
[2] Andrew J. Viterbi, "CDMA Principles of Spread Spectrum
Communication", Addison Wesley Longman, ISBN: 0201-63374-4.
[3] Sergio Verdu, "Multi-user detection", Cambridge University Press.
ISBN: 0521-59373-5.
[4] Duel-Hallen, J. Holtzman, and Z. Zvonar, "Multi-user detection for
CDMA systems,". IEEE Personal Communications Magazine, April
1995.
[5] Louis G.F. Trichard, " Optimal Multistage Linear Multiuser Receivers",
IEEE Transaction on Wireless Communication, Vol. 4,NO. 3, May
2005
[6] S. Moshavi, "Multi-user detection for DS-CDMA communications--,
IEEE communications magazine, Vol. 34, No. 10, page no. 124-136,
October, 1996.
[7] H. V. Poor, S. Verdu, "Single-user detectors for multiuser channels,"
IEEE Trans. Comm. Vol. 36, no. 1, pp. 50-60, Jan. 1988.
[8] R. Lupas, S. Verdu, "Near-far resistance of multiuser detectors in
asynchronous channels," , IEEE Trans. Comm. Vol. 38, no. 4, pp. 496-
508, April 1990.
[9] Tan F. Wong: "Spread spectrum & CDMA".
www.wireless.ece.ufl.edu/twong/Notes/CDMA/ch6.pdf.
[10] John G. Prokis, "Digital communication", forth edition, McGraw-Hill
International, 2001.
[11] Zartash Afzal Uzmi, "Simplified multiuser detection for CDMA
systems", Ph.D., Thesis, September, 2002
[12] H.Y.Wu and A. Duel-Hallen," Performance comparison of multiuser
detectors with channel estimation for flat rayleigh fading CDMA
channels," Wireless Pres. Communication., July/august 1996
[13] Shridhar Rajgopal, Shrikrishna Bhashyam, Joseph R. Cavallaro and
Behnaam Aazhang, "Real-Time Algorithms and Architectures for
Multiuser Channel Estimation and Detection in Wireless Base Station
Receivers", IEEE Transactions on Wireless Communications, Vol. 1,
No. 3, July 2002.
[14] R..Michael Buehrer, Neiyer S. Correal-Mendoza and Brain D. Woerner,"
A simulation comparison of multiuser receivers for cellular CDMA",
IEEE Transactions on Vehicular Technology, Vol. 49, No. 4, July,
2000.
[15] Lokesh Tharani and Dr. R.P. Yadav, "Non- Linear suboptimal multiuser
detectors for DS-CDMA systems", Proceedings of International
conference on soft computing and Intelligent System (ICSCIS-07),
Jabalpur Engineering College, Jabalpur(M.P.), Vol. 3, page NO. 176-
180, December, 2007.
[16] Cottatellucci, Laura;Debbah, Merouane;Muller, Ralph R, "Linear
multiuser detection for CDMA systems with correlated spatial
diversity", ISCCSP 2006, IEEE 2nd International Symposium on
Communications, Control and Signal Processing, 13-15 March 2006,
Marrakech, Morocco.
[17] Cottatellucci, Laura;Debbah, Merouane;M├╝ller, Ralf R, "Asymptotic
design and analysis of multistage detectors for asynchronous CDMA
systems", ISIT 2004, IEEE International Symposium on Information
Theory, June 27 - July 2, 2004, Chicago, USA , pp 509- 509.
[18] Seung Hee Han and Jae Hong Lee, "Multi-stage partial PIC receivers
for multi_rate DS-CDMA system with multiple modulation," in Proc.
of the IEEE WCNC 2003, pp. 591-594, Mar. 2003.
[19] Jerome M. Shapiro and James Dunyak, "Soft Information in
Interference Cancellation Based Multiuser Detection", submitted for
IEEE transaction on Wireless Communication, July 2005.
[20] Stephen J. Chapman, "MATLAB Programming for Engineering",
Second Edition, Thomson Publication.
[21] A. Rajeswari, K.Gunavathi and A.Shanmugam,"A Selective Survey on
Multiuser Detection Techniques in CDMA Systems", Academic Open
Internet Journal, Volume 13, 2004.
[22] Halil Tanyer Eyyuboglu,"MATLAB Simulation of Multiuser Detection
in CDMA", Proceeding of World Academy of Science, Engineering
and Technology, volume 3, January 2005.
@article{"International Journal of Electrical, Electronic and Communication Sciences:60231", author = "Lokesh Tharani and R.P.Yadav", title = "Interference Reduction Technique in Multistage Multiuser Detector for DS-CDMA System", abstract = "This paper presents the results related to the
interference reduction technique in multistage multiuser detector for
asynchronous DS-CDMA system. To meet the real-time
requirements for asynchronous multiuser detection, a bit streaming,
cascade architecture is used. An asynchronous multiuser detection
involves block-based computations and matrix inversions. The paper
covers iterative-based suboptimal schemes that have been studied to
decrease the computational complexity, eliminate the need for matrix
inversions, decreases the execution time, reduces the memory
requirements and uses joint estimation and detection process that
gives better performance than the independent parameter estimation
method. The stages of the iteration use cascaded and bits processed
in a streaming fashion. The simulation has been carried out for
asynchronous DS-CDMA system by varying one parameter, i.e.,
number of users. The simulation result exhibits that system gives
optimum bit error rate (BER) at 3rd stage for 15-users.", keywords = "Multi-user detection (MUD), multiple accessinterference (MAI), near-far effect, decision feedback detector,successive interference cancellation detector (SIC) and parallelinterference cancellation (PIC) detector.", volume = "2", number = "8", pages = "1686-7", }
