| Presentation | 2004-12-17 A Decoding Method for Tornado-type Codes Utilizing Error Packets Ryohei YAMATO, Daisuke UMEHARA, Yoshiteru MORIHIRO, Taku NOGUCHI, Makoto KAWAI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Decoding methods to detect and correct packet loss have being studied to enhance the reliability in multicast communications. The FEC systems which correct error packets adding redundant packets are utilized to improve the reliability, especially for satellite communications in which packet retransmission is not adequate. Tornado codes are a kind of error correcting codes which perform coding and decoding on a packet level. Tornado codes have the feature that coding and decoding time is short because of the small number of operations. They are effective to the packet loss caused by buffer overflow and congestion control. On the other hand, even if a part of a packet is corrupted by bit errors, it is regarded as packet loss because Tornado code calculation is performed on a packet level. This paper proposes a decoding method which makes Tornado-type codes effective to bit errors by exploiting error packets and also shows how the proposed decoding method is effective to the communication environment in which bit errors are dominant by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | malticast / Tornado codes / FEC / bit error |
| Paper # | SANE2004-74,SAT2004-162 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2004/12/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Decoding Method for Tornado-type Codes Utilizing Error Packets |
| Sub Title (in English) | |
| Keyword(1) | malticast |
| Keyword(2) | Tornado codes |
| Keyword(3) | FEC |
| Keyword(4) | bit error |
| 1st Author's Name | Ryohei YAMATO |
| 1st Author's Affiliation | Graduate School of Informatics, Kyoto University() |
| 2nd Author's Name | Daisuke UMEHARA |
| 2nd Author's Affiliation | Graduate School of Informatics, Kyoto University |
| 3rd Author's Name | Yoshiteru MORIHIRO |
| 3rd Author's Affiliation | Graduate School of Informatics, Kyoto University |
| 4th Author's Name | Taku NOGUCHI |
| 4th Author's Affiliation | College of Information Science and Engineering, Ritsumeikan University |
| 5th Author's Name | Makoto KAWAI |
| 5th Author's Affiliation | College of Information Science and Engineering, Ritsumeikan University |
| Date | 2004-12-17 |
| Paper # | SANE2004-74,SAT2004-162 |
| Volume (vol) | vol.104 |
| Number (no) | 531 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |