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An Efficient Detection Technique for Synchronous CDMA Communication Systems Based on the Expectation Maximization Algorithm

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dc.contributor.author Borran, Mohammad Jaber
Nasiri-Kenari, Masoumeh
dc.creator Borran, Mohammad Jaber
Nasiri-Kenari, Masoumeh
dc.date.accessioned 2007-10-31T00:37:24Z
dc.date.available 2007-10-31T00:37:24Z
dc.date.issued 2000-09-20
dc.date.submitted 2001-08-17
dc.identifier.uri http://hdl.handle.net/1911/19738
dc.description Journal Paper
dc.description.abstract Maximum likelihood detection of superimposed signals in code-division multiple access (CDMA) communication systems has a computational complexity that is exponential in the number of users, and its implementation is practically prohibitive even for a moderate number of users. Applying the expectation maximization algorithm to this problem, we decompose the multiuser detection problem into a series of single-user problems, and thus present an iterative computationally efficient algorithm for detection of superimposed signals in synchronous direct-sequence CDMA communication systems. The resulting structure includes the well-known multistage detector as one of its special cases. With a proper choice of its parameters, the new detector can achieve the advantages of both the multistage and conventional detector and have good performance for both strong and weak users.
dc.subject Code-division multiple-access (CDMA) systems
expectation maximization (EM) algorithm
multiuser detection
spread spectrum
dc.title An Efficient Detection Technique for Synchronous CDMA Communication Systems Based on the Expectation Maximization Algorithm
dc.type Journal Paper
dc.citation.bibtexName article
dc.citation.journalTitle IEEE Vehicular Technology Conference (VTC)
dc.date.modified 2001-08-17
dc.contributor.center Center for Multimedia Communications (http://cmc.rice.edu/)
dc.subject.keyword Code-division multiple-access (CDMA) systems
expectation maximization (EM) algorithm
multiuser detection
spread spectrum
dc.citation.volumeNumber 49
dc.citation.pageNumber 1663-1669
dc.identifier.citation M. J. Borran and M. Nasiri-Kenari, "An Efficient Detection Technique for Synchronous CDMA Communication Systems Based on the Expectation Maximization Algorithm," IEEE Vehicular Technology Conference (VTC), vol. 49, pp. 1663-1669, 2000.
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  • ECE Publications [1028 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • CMC Publications [272 items]
    Publications by Rice Faculty and graduate students in multimedia communications