Presentation	2012-01-20 Spatially-Coupled Codes for K-User Erasure Multiple Access Channels Takayuki TSUJIMOTO, Kenta KASAI, Kohichi SAKANIWA,
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Abstract(in English)	In this paper, we study low-density parity-check codes(LDPC) coded K-user erasure multiple access channels(EMAC). The support of the belief propagation message for K-user EMAC is unbounded for K≧3. We propose a reduced-complexity decoding algorithm for which only three types of messages are used and density evolution can be applied. Furthermore, we observe that significant improvement is achieved by spatially-coupled codes.
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Keyword(in English)	spatially-coupled codes / LDPC convolutional codes / multiple access channels
Paper #	IT2011-40
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Committee	IT
Conference Date	2012/1/13(1days)
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Registration To	Information Theory (IT)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Spatially-Coupled Codes for K-User Erasure Multiple Access Channels
Sub Title (in English)
Keyword(1)	spatially-coupled codes
Keyword(2)	LDPC convolutional codes
Keyword(3)	multiple access channels
1st Author's Name	Takayuki TSUJIMOTO
1st Author's Affiliation	Dept. of Communications and Integrated Systems, Tokyo Institute of Technology()
2nd Author's Name	Kenta KASAI
2nd Author's Affiliation	Dept. of Communications and Integrated Systems, Tokyo Institute of Technology
3rd Author's Name	Kohichi SAKANIWA
3rd Author's Affiliation	Dept. of Communications and Integrated Systems, Tokyo Institute of Technology
Date	2012-01-20
Paper #	IT2011-40
Volume (vol)	vol.111
Number (no)	390
Page	pp.pp.-
#Pages	6
Date of Issue