Differential and coherent decorrelating multiuser receivers for space-time coded CDMA systems

Hongbin Li, Jian Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we consider the problem of multiuser receiver design for code-division multiple-access (CDMA) systems that utilize (differential) space-time block coding for transmission. In particular, we propose two differential and one coherent receivers for such systems. The differential receivers do not require the channel state information (CSI) for detection and, even so, are resistant to multiuser interference (MUI) and time-varying channel fading. The coherent receiver requires only the CSI of the desired user for detection. It yields improved performance over the differential receivers when reliable channel estimates are available (e.g., in slowly fading channels). The proposed differential koherent receivers are decorrelative schemes that decouple the detection of different users. Both long and short spreading codes can be employed in these schemes. Numerical examples are presented to demonstrate the effectiveness of the proposed receivers.

Original languageEnglish
Title of host publication2002 IEEE Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAME 2002
Pages575-579
Number of pages5
ISBN (Electronic)0780375513
DOIs
StatePublished - 2002
EventIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002 - Rosslyn, United States
Duration: 4 Aug 20026 Aug 2002

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume2002-January
ISSN (Electronic)2151-870X

Conference

ConferenceIEEE Sensor Array and Multichannel Signal Processing Workshop, SAME 2002
Country/TerritoryUnited States
CityRosslyn
Period4/08/026/08/02

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