Title :
An EM-Based Joint Channel Estimation and Data Detection for SIMO Systems
Author :
Pham, The-Hanh ; Nallanathan, Arumugam ; Liang, Ying-Chang
Author_Institution :
Singapore Nat. Univ.
Abstract :
The single-input multi-output (SIMO) channel model has been widely used in data transmission and diversity reception systems. In this paper, we consider the problem of joint channel estimation and data detection for SIMO systems under fast-fading channels with unknown spatially correlated noise. We propose an iterative receiver based on expectation maximization (EM) algorithm. Bit error rate (BER) performance of the proposed iterative receiver is compared with the maximum likelihood (ML) receiver with perfect channel state information (CSI). The simulation results show that the proposed iterative receiver exhibit near ML performance with a few iterations
Keywords :
channel estimation; error statistics; expectation-maximisation algorithm; fading channels; radio receivers; BER; EM-based joint channel estimation; SIMO systems; bit error rate; channel state information; data detection; expectation maximization algorithm; fast-fading channels; iterative receiver; maximum likelihood receiver; single-input multi-output channel model; spatially correlated noise; Channel estimation;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342334
