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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37562

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: 2013
Issue Date: 2016-03-21T07:17:22Z
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 signalto-noise
ratios, which appears in the existing works, at the expense of moderately higher complexity if the cascaded PU/PSO
is used.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37562
Appears in Collections:[電機工程學系] 期刊論文

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