Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver

<p/> <p>The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the spatial division multiple access (SDMA) technique. Optimal multiuser MIMO linear precoding is considered...

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Main Authors: Shu Fang, Gang Wu, Shao-Qian Li
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:EURASIP Journal on Wireless Communications and Networking
Online Access:http://jwcn.eurasipjournals.com/content/2009/197682
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author Shu Fang
Gang Wu
Shao-Qian Li
author_facet Shu Fang
Gang Wu
Shao-Qian Li
author_sort Shu Fang
collection DOAJ
description <p/> <p>The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the spatial division multiple access (SDMA) technique. Optimal multiuser MIMO linear precoding is considered as a key issue in the area of multiuser MIMO research. The challenge in such multiuser system is designing the precoding vector to maximize the system capacity. An optimal multiuser MIMO linear precoding scheme with LMMSE detection based on particle swarm optimization is proposed in this paper. The proposed scheme aims to maximize the system capacity of multiuser MIMO system with linear precoding and linear detection. This paper explores a simplified function to solve the optimal problem. With the adoption of particle swarm optimization algorithm, the optimal linear precoding vector could be easily searched according to the simplified function. The proposed scheme provides significant performance improvement comparing to the multiuser MIMO linear precoding scheme based on channel block diagonalization method.</p>
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spelling doaj.art-e4716e2ef2554b9393438e3ab8efbddd2022-12-22T01:14:12ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992009-01-0120091197682Optimal Multiuser MIMO Linear Precoding with LMMSE ReceiverShu FangGang WuShao-Qian Li<p/> <p>The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the spatial division multiple access (SDMA) technique. Optimal multiuser MIMO linear precoding is considered as a key issue in the area of multiuser MIMO research. The challenge in such multiuser system is designing the precoding vector to maximize the system capacity. An optimal multiuser MIMO linear precoding scheme with LMMSE detection based on particle swarm optimization is proposed in this paper. The proposed scheme aims to maximize the system capacity of multiuser MIMO system with linear precoding and linear detection. This paper explores a simplified function to solve the optimal problem. With the adoption of particle swarm optimization algorithm, the optimal linear precoding vector could be easily searched according to the simplified function. The proposed scheme provides significant performance improvement comparing to the multiuser MIMO linear precoding scheme based on channel block diagonalization method.</p>http://jwcn.eurasipjournals.com/content/2009/197682
spellingShingle Shu Fang
Gang Wu
Shao-Qian Li
Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
EURASIP Journal on Wireless Communications and Networking
title Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
title_full Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
title_fullStr Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
title_full_unstemmed Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
title_short Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver
title_sort optimal multiuser mimo linear precoding with lmmse receiver
url http://jwcn.eurasipjournals.com/content/2009/197682
work_keys_str_mv AT shufang optimalmultiusermimolinearprecodingwithlmmsereceiver
AT gangwu optimalmultiusermimolinearprecodingwithlmmsereceiver
AT shaoqianli optimalmultiusermimolinearprecodingwithlmmsereceiver