PERFORMANCE OF MULTIUSER DETECTION FOR CDMA SYSTEM IN FLAT RAYLEIGH FADING ENVIRONMENT

Nie Jingnan; Cheng Shixin; You Xiaohu

Volume 19 Issue 3

May 1997

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 1997 > 19(3): 335-339

Nie Jingnan, Cheng Shixin, You Xiaohu. PERFORMANCE OF MULTIUSER DETECTION FOR CDMA SYSTEM IN FLAT RAYLEIGH FADING ENVIRONMENT[J]. Journal of Electronics & Information Technology, 1997, 19(3): 335-339.

Citation:

Nie Jingnan, Cheng Shixin, You Xiaohu. PERFORMANCE OF MULTIUSER DETECTION FOR CDMA SYSTEM IN FLAT RAYLEIGH FADING ENVIRONMENT[J]. Journal of Electronics & Information Technology, 1997, 19(3): 335-339.

Citation:

PDF( 890 KB)

PERFORMANCE OF MULTIUSER DETECTION FOR CDMA SYSTEM IN FLAT RAYLEIGH FADING ENVIRONMENT

Received Date: 1995-11-10
Rev Recd Date: 1996-07-23
Publish Date: 1997-05-19

Abstract

Abstract

In a CDMA wireless conmunication network using the conventional signal detection, the capacity of the system is limited and the performance is degraded by the multi-access interference (MAI). The multiuser signal detection, which make use of cross-correlation information between two spread spectrum codes, can reduce or eliminate the MAI in a Gaussian channel so as to mitigate the near-far effects and increase the system capacity. This paper extends the multiuser detector to the flat Rayleigh fading CDMA environment and discusses the bit error rate of typical multiuser detection algorithms in such a environment by combining analysis and simulation. It is concluded that the multiuser detection is superior to conventional detections in the flat Rayleigh fading channels.

FullText(HTML)

References(1)

References

Verdu S. Minimum probability of~for asynchronous Gaussian multiple-multiple-access channels. IEEE Trans. on IT, 1986, IT-32(1): 85-96.[2]Lupas R, Verdu S. Linear multiuser detectors for synchronous code-division multiple-access channel. IEEE Trans. on IT, 1989, IT-35(1): 123-136.[3]Lupas R, Verdu S. Near-far resistance of multiuser detectors in asynchronous channels. IEEE Trans[4]on COM, 1990, COM-38(4): 496-508.[5]Varanasi M K, Aazhang B. Near-optimum detection in synchronous code-division multiple access systems. IEEE Trans on COM, 1991, COM-39(5): 725-736.[6]Vasudevan S, Varanasi M K. Optimum diversity combiner based multiuser detection for time-dispersive Rician fading CDMA channels. IEEE J. of SAC, 1994, SAC-12(4): 580-591.[7]Wijayasuria S S H, McGeehan J P, Norton G H. RAKE decorrelating receiver for DS-CDMA mobile radio networks[J].Electron. Lett.1993, 29(4):395-396[8]Turin G. The effects of multipath and fading on the performance of direct sequence CDMA systems. IEEE Trans. on VT, 1984, VT-33(3): 213-219.[9]Lee W. Overview of cellular CDMA. IEEE Trans. on VT, 1991, VT-40(2): 291-302.[10]Jeruchim M C. Techniques for estimating the bit error rate in the simulation of digital communication systems. IEEE J. of SAC, 1984, SAC-2(1): 153-170.

Relative Articles

Supplements(0)

Cited By

Proportional views