期刊名称：International Journal of Electronics Communication and Computer Engineering
印刷版ISSN：2249-071X
电子版ISSN：2278-4209
出版年度：2012
卷号：3
期号：5
页码：1279-1282
出版社：IJECCE
摘要：In this paper, we present a low-complexity algorithm for detection in high rate, space-time block coded (STBC) large MIMO systems that achieve high spectral efficiencies. STBC is a powerful technique to achieve full spatial diversity in Rayleigh fading channels with low decoding complexities. This complexity gain becomes greater when the number of transmit antennas or the constellation size becomes larger. STBC is a MIMO transmit strategy which exploits transmit diversity and high reliability. In most of the existing space-time code designs, achieving full diversity is based on maximum-likelihood (ML) decoding at the receiver that is usually computationally expensive. Sphere detection has emerged as a powerful means of finding the maximum likelihood solutions to the detection problem of multiple antenna (MIMO) systems. In this paper, we analyze the performance and computational complexity of sphere detector and compare it with that of already known MIMO receiver techniques
关键词：Alamouti STBC; full diversity; maximum likelihood ML detector; multiple-input multiple-output MIMO; sphere decoder
