Presentation 2010-03-05
A Design Scheme for LDPC Convolutional Codes Based on Parity Check Polynomials with a Time Period of 2
Yutaka MURAKAMI, Shutai OKAMURA, Shozo OKASAKA, Takaaki KISHIGAMI, Masayuki ORIHASHI,
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Abstract(in English) Low-density parity-check (LDPC) codes have attracted a lot of attention in recent years, because LDPC codes a significant outcome of channel capacity at low complexity. This paper examines a design scheme for time-varying low-density parity-check convolutional codes with a time period of 2 based on parity check polynomials (TV2-LDPC-CCs) regarding the number of short cycle. We show conditions for generating cycle of length (CL) 6 in the TV2-LDPC-CCs and examine restrictions for a search scheme for TV2-LDPC-CCs to reduce the number of CL 6. We show that a design scheme with restrictions which this paper presents can give TV2-LDPC-CCs with high error correction capacity.
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Keyword(in English) LDPC convolutional codes / A time period of 2 / Tanner graphs / Cycle of length 6
Paper # RCS2009-311
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Committee RCS
Conference Date 2010/2/24(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Design Scheme for LDPC Convolutional Codes Based on Parity Check Polynomials with a Time Period of 2
Sub Title (in English)
Keyword(1) LDPC convolutional codes
Keyword(2) A time period of 2
Keyword(3) Tanner graphs
Keyword(4) Cycle of length 6
1st Author's Name Yutaka MURAKAMI
1st Author's Affiliation Panasonic Corporation:Digital & Network Technology Development Center()
2nd Author's Name Shutai OKAMURA
2nd Author's Affiliation Panasonic Corporation:Digital & Network Technology Development Center
3rd Author's Name Shozo OKASAKA
3rd Author's Affiliation Panasonic Corporation
4th Author's Name Takaaki KISHIGAMI
4th Author's Affiliation Panasonic Corporation
5th Author's Name Masayuki ORIHASHI
5th Author's Affiliation Panasonic Corporation
Date 2010-03-05
Paper # RCS2009-311
Volume (vol) vol.109
Number (no) 440
Page pp.pp.-
#Pages 6
Date of Issue