Title :
EM-based iterative receiver for space-time coded modulation with noise variance estimation
Author :
Baranski, Z. ; Haimovich, A.M. ; Garcia-Frias, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
We consider the design of a space-time coded modulation transmit-receive system employing symbol interleaving. An iterative receiver is derived based on the expectation-maximization algorithm with soft output symbol decoding and estimation of noise variance. The proposed system demonstrates very good performance over fast fading unknown channels in the presence of unknown additive white Gaussian noise.
Keywords :
AWGN channels; fading channels; iterative decoding; modulation coding; optimisation; receiving antennas; space-time codes; transmitting antennas; EM-based iterative receiver; expectation-maximization algorithm; fast fading unknown channels; noise variance estimation; performance; soft output symbol decoding; space-time coded modulation; symbol interleaving; transmit-receive system; unknown additive white Gaussian noise; Data communication; Fading; Interleaved codes; Iterative algorithms; Iterative decoding; Modulation coding; Parameter estimation; Receiving antennas; Signal to noise ratio; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1188100
