Successive interference cancellation in multiple data rate DS/CDMA systems

Analyses a successive interference cancellation (IC) scheme for M-ary QAM modulation in direct sequence code division multiple access (DS/CDMA) systems. The performance under Rayleigh fading is analysed for single modulation systems and systems employing either of two different methods, mixed modulation or parallel channels, for handling multiple data rates. The authors show that the successive IC scheme for higher modulation together with mixed modulation or parallel channels give a considerable increase in performance and flexibility compared to single modulation systems employing a conventional detector.

[1]  Andrew J. Viterbi,et al.  On the capacity of a cellular CDMA system , 1991 .

[2]  John G. Proakis,et al.  Probability, random variables and stochastic processes , 1985, IEEE Trans. Acoust. Speech Signal Process..

[3]  J.E. Mazo,et al.  Digital communications , 1985, Proceedings of the IEEE.

[4]  Alexandra Duel-Hallen,et al.  Decorrelating decision-feedback multiuser detector for synchronous code-division multiple-access channel , 1993, IEEE Trans. Commun..

[5]  Behnaam Aazhang,et al.  Multistage detection in asynchronous code-division multiple-access communications , 1990, IEEE Trans. Commun..

[6]  T. Ottosson,et al.  Multi-rate schemes in DS/CDMA systems , 1995, 1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century.

[7]  Sergio Verdú,et al.  Near-far resistance of multiuser detectors in asynchronous channels , 1990, IEEE Trans. Commun..

[8]  P. Teder,et al.  CDMA with interference cancellation: A technique for high capacity wireless systems , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[9]  Jack M. Holtzman,et al.  Analysis of a simple successive interference cancellation scheme in a DS/CDMA system , 1994, IEEE J. Sel. Areas Commun..

[10]  Arne Svensson,et al.  Successive interference cancellation schemes in multi-rate DS/CDMA systems , 1996 .

[11]  J. M. Holtzman,et al.  Analysis of a DS/CDMA successive interference cancellation scheme using correlations , 1993, Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference.