| Paper Abstract and Keywords |
| Presentation |
2005-07-21 09:20
Construction Method and Mapping Method of LDPC Codes for M-ary QAM
Shigeru Uchida, Wataru Matsumoto, Akira Otsuka, Fumio Ishizu (Mitsubishi Electric Corp.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Recently, Low-Density Parity-Check (LDPC) codes which can achieve the performance near the Shannon limit with Sum-Product decoding algorithm are studied to apply to some wireless communication systems. To increase the bit rate of wireless communication systems, it is required to improve the reliability of the communication over M-ary QAM, and we have already proposed the method to search the degree distribution for M-ary QAM. In this paper, we propose the construction method and mapping method of LDPC codes for M-ary QAM regarding with the degree distribution for M-ary QAM and the structure of Low-Density Generation Matrix (LDGM). We evaluated the performance of our proposed method using a computer simulation, and we confirmed that our proposed method was effective. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
LDPC Codes / Degree Distribution / Density Evolution / M-ary QAM / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 196, RCS2005-41, pp. 7-12, July 2005. |
| Paper # |
RCS2005-41 |
| Date of Issue |
2005-07-14 (RCS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
NS RCS |
| Conference Date |
2005-07-21 - 2005-07-22 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Okayama Univ.(Tsushima Campus) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Mobile Networks, Mobile IP, Wireless Communication, etc. |
| Paper Information |
| Registration To |
RCS |
| Conference Code |
2005-07-NS-RCS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Construction Method and Mapping Method of LDPC Codes for M-ary QAM |
| Sub Title (in English) |
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| Keyword(1) |
LDPC Codes |
| Keyword(2) |
Degree Distribution |
| Keyword(3) |
Density Evolution |
| Keyword(4) |
M-ary QAM |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Shigeru Uchida |
| 1st Author's Affiliation |
Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
| 2nd Author's Name |
Wataru Matsumoto |
| 2nd Author's Affiliation |
Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
| 3rd Author's Name |
Akira Otsuka |
| 3rd Author's Affiliation |
Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
| 4th Author's Name |
Fumio Ishizu |
| 4th Author's Affiliation |
Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
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| Speaker |
Author-1 |
| Date Time |
2005-07-21 09:20:00 |
| Presentation Time |
20 minutes |
| Registration for |
RCS |
| Paper # |
RCS2005-41 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.196 |
| Page |
pp.7-12 |
| #Pages |
6 |
| Date of Issue |
2005-07-14 (RCS) |