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Proceedings Paper

Multiuser channel estimation and detection with partial user information for space-time coded CDMA systems
Author(s): Ping Xiong; Stella N. Batalama; Michael J. Medley
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Paper Abstract

In this work, we develop a new second-order statistics based multiuser multipath channel estimation algorithm for uplink wireless space-time coded CDMA systems. The estimation procedure is based on the parameterization, with respect to the multiuser channel response vector, of the received data covariance matrix. As a side result, we also obtain an improved covariance matrix estimator. Then we utilize both the channel and the covariance matrix estimates to obtain an estimate of the linear MMSE receiver. Simulation studies illustrate the performance improvements of the proposed estimators relative to existing methods in terms of channel estimation mean-square error as well as receiver filter output SINR and receiver BER.

Paper Details

Date Published: 2 June 2005
PDF: 8 pages
Proc. SPIE 5819, Digital Wireless Communications VII and Space Communication Technologies, (2 June 2005); doi: 10.1117/12.606004
Show Author Affiliations
Ping Xiong, State Univ. of New York at Buffalo (United States)
Stella N. Batalama, State Univ. of New York at Buffalo (United States)
Michael J. Medley, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 5819:
Digital Wireless Communications VII and Space Communication Technologies
Rabindra Singh; Raghuveer M. Rao; Sohail A. Dianat; Michael D. Zoltowski, Editor(s)

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