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

fYear

2012

fDate

8-10 Aug. 2012

Firstpage

315

Lastpage

320

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);

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ChinaCom.2012.6417498

Filename

6417498