ChinaCom2009-Wireless Communications and Networking Symposium

Research Article

Performance Analysis of Multiuser Receivers for Large CDMA Random Access Systems over Rayleigh Fading Channels

Cite
BibTeX Plain Text
  • @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
Kai Yu1,*, Pingzhi Fan1,*, Li Hao1,*
  • 1: Key Lab of Information Coding & Transmission, Institute of Mobile Communications Southwest Jiaotong University, Chengdu, Sichuan 610031, China
*Contact email: ekyukai@gmail.com, p.fan@ieee.org, lhao@swjtu.edu.cn

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.

Keywords
Fading channel; CDMA; random access; multiuser detection
Published
2009-11-20
Publisher
IEEE
Modified
2010-05-16
http://dx.doi.org/10.1109/CHINACOM.2009.5339848
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