In this paper a novel soft-in soft-out (SISO) multiuser detector for 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 (BEM). Performance results for both uncoded and coded PSK transmissions show the efficacy of the proposed multiuser detection technique over slowly time-varying fading channels in a two user system.
A novel BEM-based multiuser detector for co-channel signals transmitted over frequency-flat fading channels / Gallo, Antonio Stanislao; Chiavaccini, Eugenio; Vitetta, Giorgio Matteo. - STAMPA. - 1:(2003), pp. 241-246. ((Intervento presentato al convegno IEEE Global Telecommunications Conference, 2003 (GLOBECOM '03) tenutosi a San Francisco, CA, USA nel 1-5 Dec., 2003.
A novel BEM-based multiuser detector for co-channel signals transmitted over frequency-flat fading channels
GALLO, Antonio Stanislao;CHIAVACCINI, Eugenio;VITETTA, Giorgio Matteo
2003
Abstract
In this paper a novel soft-in soft-out (SISO) multiuser detector for 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 (BEM). Performance results for both uncoded and coded PSK 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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