Research Article
Performance Analysis of Multiuser Receivers for Large CDMA Random Access Systems over Rayleigh Fading Channels
@INPROCEEDINGS{10.1109/CHINACOM.2009.5339848, author={Kai Yu and Pingzhi Fan and Li Hao}, title={Performance Analysis of Multiuser Receivers for Large CDMA Random Access Systems over Rayleigh Fading Channels}, proceedings={ChinaCom2009-Wireless Communications and Networking Symposium}, publisher={IEEE}, proceedings_a={CHINACOM2009-WCN}, year={2009}, month={11}, keywords={Fading channel; CDMA; random access; multiuser detection}, doi={10.1109/CHINACOM.2009.5339848} }- Kai Yu
Pingzhi Fan
Li Hao
Year: 2009
Performance Analysis of Multiuser Receivers for Large CDMA Random Access Systems over Rayleigh Fading Channels
CHINACOM2009-WCN
IEEE
DOI: 10.1109/CHINACOM.2009.5339848
Abstract
The random access systems, exploiting multiuser detectors such as MMSE detector and decorrelator, over large random spreading CDMA channel subject to Rayleigh fading is investigated, under the assumption of infinite number of users, infinite spreading gain, and their ratio converging to a constant. The signal to interference ratio (SIR) is shown to converge almost surely to a constant and the bit-error rate (BER) limit is a function of the transmission probability and traffic load. The throughput and spectrum efficiency are analyzed, and confirmed by simulation results.
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