Title :
EXIT Chart Based BER Expressions for Turbo Decoding in Fading MIMO Wireless Systems
Author :
Sapra, Rajat ; Jagannatham, Aditya K.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Kanpur, Kanpur, India
Abstract :
An Extrinsic Information Transfer (EXIT) framework to derive the BER of turbo decoding for fading MIMO wireless channels is presented in this work. Closed form BER expressions are derived for turbo decoding in maximum ratio combining (MRC), MIMO Zero Forcing, MIMO V-BLAST and MIMO beamforming wireless systems considering BPSK modulation. Simulation results demonstrate accurate BER prediction for an arbitrary number of antennas and iterations in all the turbo BER regions.
Keywords :
MIMO communication; array signal processing; error statistics; fading channels; turbo codes; BER expressions; BER prediction; BPSK modulation; EXIT chart; EXIT framework; MIMO V-BLAST; MIMO beamforming wireless systems; MIMO zero forcing; MRC; extrinsic information transfer framework; fading MIMO wireless channels; fading MIMO wireless systems; maximum ratio combining; turbo BER regions; turbo decoding; Antennas; Bit error rate; Decoding; Fading; Iterative decoding; MIMO; Vectors; MIMO; MRC; MRT; Multiple Antenna Systems; Turbo Codes; V-BLAST; Zero Forcing; multiple antenna systems; turbo codes; zero forcing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.2371052
