Multiple Source Cooperation: From Code Division Multiplexing To Variable-Rate Network Coding
Multiple Source Cooperation: From Code Division Multiplexing To Variable-Rate Network Coding
Multiple-source cooperation techniques, including conventional code-division multiplexing (CDM) and classic network coding (CNC), are investigated. We adopt a soft sum - product decoding algorithm for the CNC technique to efficiently process a large number of information streams and propose a flexible variable-rate network coding (VNC) technique, which is capable of attaining a near-optimum performance. Quantitatively, the proposed VNC method is capable of operating within 1 dB from the outage capacity of the quasi-static Rayleigh fading channel. The iterative decoding convergence of the multiple-source computation methods is analyzed with the aid of extrinsic information transfer charts.
cooperative communications, exit charts analysis, iterative techniques, multiple source cooperation, physical-layer network-coding
1005-1015
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
14 March 2011
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Zhang, Rong and Hanzo, Lajos
(2011)
Multiple Source Cooperation: From Code Division Multiplexing To Variable-Rate Network Coding.
IEEE Transactions on Vehicular Technology, 60 (3), .
(doi:10.1109/TVT.2011.2106810).
Abstract
Multiple-source cooperation techniques, including conventional code-division multiplexing (CDM) and classic network coding (CNC), are investigated. We adopt a soft sum - product decoding algorithm for the CNC technique to efficiently process a large number of information streams and propose a flexible variable-rate network coding (VNC) technique, which is capable of attaining a near-optimum performance. Quantitatively, the proposed VNC method is capable of operating within 1 dB from the outage capacity of the quasi-static Rayleigh fading channel. The iterative decoding convergence of the multiple-source computation methods is analyzed with the aid of extrinsic information transfer charts.
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e-pub ahead of print date: 17 January 2011
Published date: 14 March 2011
Keywords:
cooperative communications, exit charts analysis, iterative techniques, multiple source cooperation, physical-layer network-coding
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 272067
URI: http://eprints.soton.ac.uk/id/eprint/272067
ISSN: 0018-9545
PURE UUID: c57a85be-4398-4e26-8723-b54aada5eb80
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Date deposited: 01 Mar 2011 20:58
Last modified: 18 Mar 2024 02:34
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Contributors
Author:
Rong Zhang
Author:
Lajos Hanzo
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