Title :
On the Gaussian approximation in the analysis of iterative MIMO processing
Author :
Jiang, Yibo ; Koetter, Ralf ; Singer, Andrew C.
Author_Institution :
Coordinated Sci. Laboratory, Illinois Univ., Urbana, IL, USA
Abstract :
In this paper, we study the density of extrinsic information at the output of the demodulator of an iterative MIMO processing system. In particular, if the a priori information is Gaussian distributed, the conditions under which the extrinsic information is also approximately Gaussian distributed are found.
Keywords :
Gaussian distribution; MIMO systems; channel coding; concatenated codes; fading channels; interleaved codes; iterative decoding; space-time codes; Gaussian approximation; MIMO processing system; demodulator output; extrinsic information; multiple-input multiple-output; Demodulation; Density functional theory; Gaussian approximation; Information analysis; Iterative decoding; MIMO; Modulation coding; Mutual information; Parity check codes; Turbo codes;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1292096
