In this paper the expectation-maximization (EM) algorithm for maximum a posteriori (MAP) estimation of a random vector is applied to the problem of symbol detection for CPM signals transmitted over time-selective Rayleigh fading channels. This results in a soft-in soft-out (SISO) detection algorithm suitable for iterative detection/decoding schemes. Simulation results show that the error performance provided by the proposed solution is very close to that of a MAP detector endowed with an ideal knowledge of the channel state.
An EM-based MAP detector for CPM signals transmitted over frequency-flat fading channels / Chiavaccini, Eugenio; Vitetta, Giorgio Matteo. - STAMPA. - 2:(2001), pp. 1142-1146. ((Intervento presentato al convegno 2001 IEEE Global Telecommunications Conference (GLOBECOM '01) tenutosi a San Antonio, Texas, USA nel 25-29 Nov., 2001.
An EM-based MAP detector for CPM signals transmitted over frequency-flat fading channels
CHIAVACCINI, Eugenio;VITETTA, Giorgio Matteo
2001
Abstract
In this paper the expectation-maximization (EM) algorithm for maximum a posteriori (MAP) estimation of a random vector is applied to the problem of symbol detection for CPM signals transmitted over time-selective Rayleigh fading channels. This results in a soft-in soft-out (SISO) detection algorithm suitable for iterative detection/decoding schemes. Simulation results show that the error performance provided by the proposed solution is very close to that of a MAP detector endowed with an ideal knowledge of the channel state.
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