A Low Complexity Greedy Algorithm for Dynamic Subarrays in mmWave MIMO Systems

Ke Xu; Fu-Chun Zheng; Pan Cao; Hongguang Xu; Xu Zhu

doi:10.1109/VTCFall.2019.8891264

A Low Complexity Greedy Algorithm for Dynamic Subarrays in mmWave MIMO Systems

Ke Xu, Fu-Chun Zheng, Pan Cao, Hongguang Xu, Xu Zhu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

For a mmWave multiple input multiple output (MIMO) system, the hybrid precoding scheme is of great interest due to its lower power consumption and hardware cost, where a smaller number of RF chains are used to feed a larger scale of antenna array. In this paper we consider a flexible architecture where RF chains and antennae can be dynamically connected, and propose a greedy algorithm to achieve dynamic subarray configuration. The greedy algorithm can select the best subarrays from all the possible candidates in each search process, while the Lanczos algorithm is applied to further reduce the computation complexity. Simulation results demonstrate the superior performance of the proposed algorithm to existing works yet with a lower complexity.

Original language	English
Title of host publication	IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Proceedings
Number of pages	5
ISBN (Electronic)	9781728112206
DOIs	https://doi.org/10.1109/VTCFall.2019.8891264
Publication status	Published - 7 Nov 2019
Event	2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) - Honolulu, United States Duration: 22 Sept 2019 → 25 Sept 2019 http://www.ieeevtc.org/vtc2019fall/

Conference

Conference	2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)
Country/Territory	United States
City	Honolulu
Period	22/09/19 → 25/09/19
Internet address	http://www.ieeevtc.org/vtc2019fall/

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Cite this

@inproceedings{e263b5f1c84e4cc78f5aa34c05dfa667,

title = "A Low Complexity Greedy Algorithm for Dynamic Subarrays in mmWave MIMO Systems",

abstract = "For a mmWave multiple input multiple output (MIMO) system, the hybrid precoding scheme is of great interest due to its lower power consumption and hardware cost, where a smaller number of RF chains are used to feed a larger scale of antenna array. In this paper we consider a flexible architecture where RF chains and antennae can be dynamically connected, and propose a greedy algorithm to achieve dynamic subarray configuration. The greedy algorithm can select the best subarrays from all the possible candidates in each search process, while the Lanczos algorithm is applied to further reduce the computation complexity. Simulation results demonstrate the superior performance of the proposed algorithm to existing works yet with a lower complexity.",

author = "Ke Xu and Fu-Chun Zheng and Pan Cao and Hongguang Xu and Xu Zhu",

year = "2019",

month = nov,

day = "7",

doi = "10.1109/VTCFall.2019.8891264",

language = "English",

isbn = "9781728112213",

booktitle = "IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Proceedings",

note = " 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) ; Conference date: 22-09-2019 Through 25-09-2019",

url = "http://www.ieeevtc.org/vtc2019fall/",

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TY - GEN

T1 - A Low Complexity Greedy Algorithm for Dynamic Subarrays in mmWave MIMO Systems

AU - Xu, Ke

AU - Zheng, Fu-Chun

AU - Cao, Pan

AU - Xu, Hongguang

AU - Zhu, Xu

PY - 2019/11/7

Y1 - 2019/11/7

N2 - For a mmWave multiple input multiple output (MIMO) system, the hybrid precoding scheme is of great interest due to its lower power consumption and hardware cost, where a smaller number of RF chains are used to feed a larger scale of antenna array. In this paper we consider a flexible architecture where RF chains and antennae can be dynamically connected, and propose a greedy algorithm to achieve dynamic subarray configuration. The greedy algorithm can select the best subarrays from all the possible candidates in each search process, while the Lanczos algorithm is applied to further reduce the computation complexity. Simulation results demonstrate the superior performance of the proposed algorithm to existing works yet with a lower complexity.

AB - For a mmWave multiple input multiple output (MIMO) system, the hybrid precoding scheme is of great interest due to its lower power consumption and hardware cost, where a smaller number of RF chains are used to feed a larger scale of antenna array. In this paper we consider a flexible architecture where RF chains and antennae can be dynamically connected, and propose a greedy algorithm to achieve dynamic subarray configuration. The greedy algorithm can select the best subarrays from all the possible candidates in each search process, while the Lanczos algorithm is applied to further reduce the computation complexity. Simulation results demonstrate the superior performance of the proposed algorithm to existing works yet with a lower complexity.

U2 - 10.1109/VTCFall.2019.8891264

DO - 10.1109/VTCFall.2019.8891264

M3 - Conference contribution

SN - 9781728112213

BT - IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Proceedings

T2 - 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)

Y2 - 22 September 2019 through 25 September 2019

ER -

A Low Complexity Greedy Algorithm for Dynamic Subarrays in mmWave MIMO Systems

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