Title :
Mapping QR decomposition algorithm for MIMO detection
Author :
Xie Xining ; Wang Xinglin ; Tan Minqiang ; Zhang Feng ; He Zhiqiang
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, a mapping QR decomposition (MQRD) algorithm for MIMO detection is proposed. This algorithm significantly reduces the overall complexity by eliminating the square root and division operations in traditional QR decomposition without any performance degradation. Its combination with list sphere decoding (LSD) is re-derived to provide accurate soft information. In addition, our derivation shows that linear interpolation-based QR decomposition is not feasible in practice as well.
Keywords :
MIMO communication; decoding; interpolation; LSD; MIMO detection; MQRD algorithm; linear interpolation-based QR decomposition; list sphere decoding; mapping QR decomposition; mapping QR decomposition algorithm; soft information; square root; Complexity theory; Decoding; Interpolation; MIMO; Matrix decomposition; Receiving antennas; Vectors; list sphere decoding (LSD); mapping QR decomposition(MQRD); multiple-input multiple-output (MIMO);
Conference_Titel :
Communications and Networking in China (CHINACOM), 2012 7th International ICST Conference on
Conference_Location :
Kun Ming
Print_ISBN :
978-1-4673-2698-8
Electronic_ISBN :
978-1-4673-2697-1
DOI :
10.1109/ChinaCom.2012.6417498
