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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51205

Title: Particle Swarm Optimization with Embedded/Cascaded Parallel Update for Cooperative Transmit Beamforming in Multiuser MIMO Systems
Authors: Hoang-Yang Lu
Hsien-Sen Hung
Ming-Ju Yang
Contributors: 國立臺灣海洋大學電機工程學系
Date: 2014-03
Issue Date: 2018-11-16T01:18:01Z
Publisher: IET Communications
Abstract: Abstract: The authors present a cooperative transmit beamforming (CTBF) technique for the uplink of multiuser multiple-input multiple-output (MIMO) systems. To maximise MIMO channel capacity, the proposed technique embeds a parallel update (PU) mechanism into the particle swarm optimisation (PSO) scheme to concurrently search and refine each user's CTBF weights at every iteration in the PSO, thus named the embedded PU/PSO. Moreover, a reduced complexity and yet effective scheme is also proposed, which cascades the conventional PSO with the PU mechanism, thus called the cascaded PU/PSO. Simulation results demonstrate that the proposed CTBF schemes overcome the bit-error-rate floor phenomenon problem at higher signal-to-noise ratios, which appears in the existing works, at the expense of moderately higher complexity if the cascaded PU/PSO is used.
Relation: 8(4) pp.441-447
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51205
Appears in Collections:[電機工程學系] 期刊論文

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