Improvement of BER performance in MIMO–CDMA systems by using initial–phase optimized gold codes

Ibrahim Develi; Meryem Filiz

doi:10.2478/jee-2013-0005

Abstract

This paper describes a new approach to improve the bit error rate (BER) performance of a multiple-input multiple-output code-division multiple-access (MIMO-CDMA) system over quasi-static Rayleigh fading channels. The system considered employs robust space-time successive interference cancellation detectors and initial-phase optimized Gold codes for the improvement. The results clearly indicate that the use of initial-phase optimized Gold codes can significantly improve the BER performance of the system compared to the performance of a multiuser MIMO-CDMA system with conventional nonoptimized Gold codes. Furthermore, this performance improvement is achieved without any increase in system complexity.

References

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Improvement of BER performance in MIMO–CDMA systems by using initial–phase optimized gold codes

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