A BEM-based algorithm for soft-in soft-output detection of co-channel signals

In this paper, a soft-in soft-out multiuser detector for synchronous co-channel signals transmitted over frequency-flat Rayleigh-fading channels is described. The derivation of the proposed algorithm is based on a generalization of the expectation-maximization (EM) algorithm, called Bayesian EM. Per...

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Bibliographic Details
Published inIEEE transactions on wireless communications Vol. 3; no. 5; pp. 1533 - 1542
Main Authors Gallo, A.S., Vitetta, G.M., Chiavaccini, E.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Bayesian analysis
Bayesian methods
Channels
Derivation
Detectors
Effectiveness
Fading
Frequency
Multiuser detection
Narrowband
Phase shift keying
Rayleigh channels
Receiving antennas
Signal detection
Synchronous
Wireless communication
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ISSN1536-1276
1558-2248
1558-2248
DOI10.1109/TWC.2004.833518

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Summary:In this paper, a soft-in soft-out multiuser detector for synchronous co-channel signals transmitted over frequency-flat Rayleigh-fading channels is described. The derivation of the proposed algorithm is based on a generalization of the expectation-maximization (EM) algorithm, called Bayesian EM. Performance results for both uncoded and coded phase shift keying transmissions show the efficacy of the proposed multiuser detection technique over slowly time-varying fading channels in a two-user system.
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ISSN:1536-1276
1558-2248
1558-2248
DOI:10.1109/TWC.2004.833518