Title :
On Fast-Decodable Space–Time Block Codes
Author :
Biglieri, Ezio ; Hong, Yi ; Viterbo, Emanuele
Author_Institution :
Dept. de Tecnologies de la Informacio i les Comunicacions, Univ. Pompeu Fabra, Barcelona
Abstract :
We focus on full-rate, fast-decodable space-time block codes (STBCs) for 2 times 2 and 4times2 multiple-input multiple-output (MIMO) transmission. We first derive conditions and design criteria for reduced-complexity maximum-likelihood (ML) decodable 2times2 STBCs, and we apply them to two families of codes that were recently discovered. Next, we derive a novel reduced-complexity 4times2 STBC, and show that it outperforms all previously known codes with certain constellations.
Keywords :
MIMO communication; block codes; maximum likelihood decoding; space-time codes; MIMO system; decodable space-time block codes; maximum-likelihood decoding; multiple-input multiple-output transmission; Algebra; Block codes; Communication system control; Diversity methods; MIMO; Maximum likelihood decoding; Seminars; Telecommunication computing; Telecommunication control; Transmitting antennas; Alamouti code; decoding complexity; multiple-input multiple-output (MIMO); quasi-orthogonal space–time block codes (STBCs); sphere decoder;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2008.2009817
