QRD Architecture Using the Modified ILMGS Algorithm for MIMO Systems

Cang Liu; Chuan Tang; Zuocheng Xing; Luechao Yuan; Yu Wang; Lirui Chen; Yang Zhang; Suncheng Xiang; Wangfeng Zhao; Xing Hu; Jinsong Xu

Wireless Internet. 9th International Conference, WICON 2016, Haikou, China, December 19-20, 2016, Proceedings

Research Article

QRD Architecture Using the Modified ILMGS Algorithm for MIMO Systems

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@INPROCEEDINGS{10.1007/978-3-319-72998-5_18,
    author={Cang Liu and Chuan Tang and Zuocheng Xing and Luechao Yuan and Yu Wang and Lirui Chen and Yang Zhang and Suncheng Xiang and Wangfeng Zhao and Xing Hu and Jinsong Xu},
    title={QRD Architecture Using the Modified ILMGS Algorithm for MIMO Systems},
    proceedings={Wireless Internet. 9th International Conference, WICON 2016, Haikou, China, December 19-20, 2016, Proceedings},
    proceedings_a={WICON},
    year={2018},
    month={1},
    keywords={QRD MU-MIMO MGS ILMGS MILMGS},
    doi={10.1007/978-3-319-72998-5_18}
}

Cang Liu
Chuan Tang
Zuocheng Xing
Luechao Yuan
Yu Wang
Lirui Chen
Yang Zhang
Suncheng Xiang
Wangfeng Zhao
Xing Hu
Jinsong Xu
Year: 2018
QRD Architecture Using the Modified ILMGS Algorithm for MIMO Systems
WICON
Springer
DOI: 10.1007/978-3-319-72998-5_18

Cang Liu¹^,*, Chuan Tang¹^,*, Zuocheng Xing¹^,*, Luechao Yuan¹^,*, Yu Wang¹^,*, Lirui Chen¹^,*, Yang Zhang¹^,*, Suncheng Xiang¹^,*, Wangfeng Zhao¹^,*, Xing Hu¹^,*, Jinsong Xu²^,*

1: National University of Defense Technology
2: Information Engineering University

*Contact email: liucang@nudt.edu.cn, tc8831@nudt.edu.cn, zcxing@nudt.edu.cn, yuan.luechao@nudt.edu.cn, wangyu16@nudt.edu.cn, chenlirui14@nudt.edu.cn, zhangyang@nudt.edu.cn, xiangsuncheng14@nudt.edu.cn, zhaowangfeng@nudt.edu.cn, 348883881@qq.com, pine_xu@sohu.com

Abstract

QR decomposition (QRD) is one of the performance bottlenecks of transceiver processor in the multiuser multiple-input-multiple-output (MU-MIMO) systems. This paper proposes a QRD algorithm based on the existing modified Gram-Schmidt (MGS) algorithm and iteration look-ahead MGS (ILMGS) algorithm, which is named modified ILMGS (MILMGS) algorithm. A corresponding hardware architecture based on the proposed MILMGS algorithm is designed in 0.13 m CMOS technique to decompose the real matrix. The implementation results show that the gate count of the designed hardware architecture is 250.2 K, the throughput and the critical path are 95.2 M/s and 3.5 ns respectively.

Keywords: QRD MU-MIMO MGS ILMGS MILMGS

Published: 2018-01-19
Appears in: SpringerLink

: http://dx.doi.org/10.1007/978-3-319-72998-5_18