Mapping QR Decomposition Algorithm for  MIMO Detection

Xining Xie; Xinglin Wang; Minqiang Tan; Feng Zhang; Zhiqiang He

7th International Conference on Communications and Networking in China

Research Article

Mapping QR Decomposition Algorithm for MIMO Detection

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/ChinaCom.2012.6417498,
    author={Xining Xie and Xinglin Wang and Minqiang Tan and Feng Zhang and Zhiqiang He},
    title={Mapping QR Decomposition Algorithm for  MIMO Detection},
    proceedings={7th International Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2012},
    month={10},
    keywords={multiple-input multiple-output (mimo) mapping qr decomposition(mqrd) list sphere decoding (lsd)},
    doi={10.1109/ChinaCom.2012.6417498}
}

Xining Xie
Xinglin Wang
Minqiang Tan
Feng Zhang
Zhiqiang He
Year: 2012
Mapping QR Decomposition Algorithm for MIMO Detection
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2012.6417498

Xining Xie¹^,*, Xinglin Wang², Minqiang Tan², Feng Zhang², Zhiqiang He¹

1: Beijing University of Posts and Telecommunications
2: Nokia Siemens Networks Technology (Beijing) Co. Ltd.

*Contact email: xining06806@yahoo.com.cn

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: multiple-input multiple-output (mimo) mapping qr decomposition(mqrd) list sphere decoding (lsd)

Published: 2012-10-06
Publisher: IEEE

: http://dx.doi.org/10.1109/ChinaCom.2012.6417498