Blind adaptive space-time multiuser detection with multiple transmitter and receiver antennas

Daryl Reynolds, Xiaodong Wang, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

122 Scopus citations


The demand for performance and capacity in cellular systems has generated a great deal of interest in the development of advanced signal processing techniques to optimize the use of system resources. In particular, much recent work has been done on space-time processing in which multiple transmit/receive antennas are used in conjunction with coding to exploit spatial diversity. In this paper, we consider space-time multiuser detection using multiple transmit and receive antennas for code-division multiple-access (CDMA) communications. We compare, via analytical bit-error-probability calculations, user capacity, and complexity, two linear receiver structures for different antenna configurations. Motivated by its appearance in a number of third-generation (3G) wideband CDMA standards, we use the Alamouti space-time block code for two-transmit-antenna configurations. We also develop blind adaptive implementations for the two transmit/two receive antenna case for synchronous CDMA in flat-fading channels and for asynchronous CDMA in fading multipath channels. Finally, we present simulation results for the blind adaptive implementations.

Original languageEnglish (US)
Pages (from-to)1261-1276
Number of pages16
JournalIEEE Transactions on Signal Processing
Issue number6
StatePublished - Jun 2002

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering


  • Blind adaptive receiver
  • Multiple antennas
  • Multiuser detection
  • Space-time block code
  • Subspace tracking
  • Wireless communications


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