Presentation	2014-07-18 A broadcast retransmission scheme with index coding Takahiro OSHIMA, Tadashi WADAYAMA,
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Abstract(in English)	In this paper, we propose a broadcast ARQ scheme based on index coding. Our scenario is the following: a server wish to transmit a finite sequence of packets to many receivers via a broadcast channel with packet erasures until all the receivers receives all the packets correctly. In the retransmission phase, the server makes a codeword as a retransmitted packet based on the side-information that represents the states of the receivers. The paper also presents a novel heuristic algorithm to find a clique matrix of large size that is required for encoding processes. From some computer experiments, it was shown that the proposed algorithm yields higher throughput performance compared with that of a simple selective repeat scheme.
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Keyword(in English)	Index coding / Broadcast channel / ARQ scheme
Paper #	IT2014-31
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Committee	IT
Conference Date	2014/7/10(1days)
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Paper Information
Registration To	Information Theory (IT)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	A broadcast retransmission scheme with index coding
Sub Title (in English)
Keyword(1)	Index coding
Keyword(2)	Broadcast channel
Keyword(3)	ARQ scheme
1st Author's Name	Takahiro OSHIMA
1st Author's Affiliation	Nagoya Institute of Technology()
2nd Author's Name	Tadashi WADAYAMA
2nd Author's Affiliation	Nagoya Institute of Technology
Date	2014-07-18
Paper #	IT2014-31
Volume (vol)	vol.114
Number (no)	138
Page	pp.pp.-
#Pages	6
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