NDLI: Combined opportunistic beamforming methodology

Content Provider	IEEE Xplore Digital Library
Author	Jaehak Chung Younggun Ji Yangsoo Kwon Seokhyun Kim
Copyright Year	2011
Abstract	A combined opportunistic multiple beamforming method is presented that the first beam is designed with an aid of channel state information using uplink mid-amble and other beams are orthogonally generated to the first beam sequentially. The power allocation with SINR feedback increases overall throughput for the de- centralized systems. The advantages of the proposed scheme is that the first beam is not interfered by other beams guaranteeing quality of service (QoS) and other orthogonal beams are operated opportunistically to obtain multi user diversity. The computer simulation demonstrates that the proposed scheme is effective at a small number of users, which is common in cellular systems, and outperforms conventional spatial division multiple access (SDMA) opportunistic beamforming methods.
Starting Page	128
Ending Page	135
Page Count	8
File Size	766392
File Format	PDF
ISSN	12292370
Volume Number	9
Issue Number	2
Language	English
Publisher	Editorial Department of Journal of Communications and Networks
Publisher Date	2007-06-01
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	JCN
Subject Keyword	Array signal processing Interference Signal to noise ratio Multiplexing Throughput Vectors Multiaccess communication scheduling Mobile WiMAX opportunistic multiple beamforming
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Information Systems

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