Title :
Low-complexity iterative detection and decoding of multi-antenna systems employing channel and space-time codes
Author :
Vikalo, Haris ; Hassibi, Babak
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Abstract :
We study multiple antenna systems that employ space-time modulation schemes and transmit data encoded by powerful channel codes. Decoders for such codes require probabilistic (soft) information about transmitted bits. We use a modification of the Fincke-Pohst algorithm to solve maximum a posteriori detection problem and efficiently approximate soft information. Simulation results that illustrate performance of the proposed system are presented.
Keywords :
antenna arrays; antenna theory; channel coding; computational complexity; iterative decoding; maximum likelihood detection; modulation; space-time codes; Fincke-Pohst algorithm; V-BLAST; linear dispersive space-time codes; low complexity iterative decoding; low-complexity iterative decoding; low-complexity iterative detection; maximum a posteriori detection problem; multiple antenna systems; powerful channel codes; probabilistic information; soft information; space-time codes; space-time modulation; vertical Bell-Labs layered space-time; Block codes; Channel capacity; Computational complexity; Iterative decoding; Maximum likelihood decoding; Modulation coding; Receiving antennas; Space technology; Space time codes; Transmitting antennas;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1197194
