Coherent decorrelating detector with imperfect channel estimates for CDMA Rayleigh fading channels

Huaping Liu, Zoran Siveski, Nirwan Ansari

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

A coherent multiuser decorrelating detector for an asynchronous CDMA, time-varying Rayleigh fading channel is proposed and analyzed. The detector employs fractionally sampled correlators' outputs at time instants corresponding to users' relative delays to simultaneously achieve two goals: the novel realization of a one-shot decorrelator with lower computational complexity; and to exploit a form of the time diversity for improved error performance compared to symbol spaced sampling. The decision statistics are formed from the decorrelator output according to the maximal ratio combining rule. The proposed detector performance is compared o that of a conventional symbol-spaced receiver in a single-user environment, and the impact of the channel estimation error is illustrated.

Original languageEnglish (US)
Pages600-604
Number of pages5
StatePublished - Jan 1 1997
EventProceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3) - Montreal, Can
Duration: Jun 8 1997Jun 12 1997

Other

OtherProceedings of the 1997 IEEE International Conference on Communications, ICC. Part 3 (of 3)
CityMontreal, Can
Period6/8/976/12/97

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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