NDLI: Distributed relay selection for virtual MIMO in spectral efficient broadcasting networks

Content Provider	IEEE Xplore Digital Library
Author	Shih-Jung Lu Chang, R.Y. Wei-Ho Chung
Copyright Year	2013
Description	Author affiliation: Res. Center for Inf. Technol. Innovation, Acad. Sinica, Taipei, Taiwan (Shih-Jung Lu; Chang, R.Y.; Wei-Ho Chung)
Abstract	Virtual multiple-input multiple-output (VMIMO) enables the implementation of conventional MIMO on mobile devices equipped with insufficient numbers of antennas via cooperation. This paper considers a spectral efficient broadcasting network in which selected mobile devices form a VMIMO system to relay the broadcasted data to help other devices decode the source data more reliably. In particular, the relay selection problem, a fundamental issue in the construction of VMIMO, is examined. We first review existing selection schemes for users operating in the amplify-and-forward (AF) mode. We then propose a distributed selection scheme based on post-processing SNR. In the proposed scheme, each user individually finds the most favorable candidates for VMIMO construction and then all users obtain a joint decision through a voting process. Simulation results show that the proposed distributed scheme outperforms existing distributed selection schemes and achieves a near-optimal performance with lower complexity compared to the centralized scheme.
Starting Page	3688
Ending Page	3692
File Size	485385
Page Count	5
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6555160
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Broadcasting Relays Signal to noise ratio MIMO Computational complexity Wireless communication amplify-and-forward (AF) Relay selection virtual multiple-input multiple-output (VMIMO) spectral efficiency broadcasting networks
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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