| Presentation | 2002/9/20 Implementation of Soft Decision Viterbi Decoder taking account of Channel Distortion Yoshitomo KANEDA, Tomohisa WADA, Shuji MURAKAMI, Kunio MORIMOTO, Michiru HORI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In a digital-communications system, a receiver presume channel distortion and remove them away from received signals after demodulating. In the latter part, error correction processing is performed and then desired data is obtained. By channel estimation, it is passible to judge that the error rate is large in large channel distortion, and the error rate is small in small channel distortion. Therefore, it is possible to improve the whole error correction capability by presuming the reliability (Confidence) from channel distortion, and utilizing the value as Confidence Factor [1] in a latter error correction block(FEC). This paper takes Digital Terrestrial Television Broad-casting System as an example, and shows the method that Confidence Factor generated in the receiver block works effectively at the Viterbi decoder on the assumption that it consists of an 0FDM demodulation and soft decision Viterbi decoder. The simulation result using MATLAB Simulink and the demonstration system designed on FPGA are described as performance evaluation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ISDB-T / OFDM / 64QAM / Viterbi Decoding |
| Paper # | ICD2002-103 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2002/9/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Implementation of Soft Decision Viterbi Decoder taking account of Channel Distortion |
| Sub Title (in English) | |
| Keyword(1) | ISDB-T |
| Keyword(2) | OFDM |
| Keyword(3) | 64QAM |
| Keyword(4) | Viterbi Decoding |
| 1st Author's Name | Yoshitomo KANEDA |
| 1st Author's Affiliation | Faculty of Information Engineering University of the Ryukyus() |
| 2nd Author's Name | Tomohisa WADA |
| 2nd Author's Affiliation | Faculty of Information Engineering University of the Ryukyus |
| 3rd Author's Name | Shuji MURAKAMI |
| 3rd Author's Affiliation | Magna Design Net, Inc. |
| 4th Author's Name | Kunio MORIMOTO |
| 4th Author's Affiliation | Magna Design Net, Inc. |
| 5th Author's Name | Michiru HORI |
| 5th Author's Affiliation | Magna Design Net, Inc. |
| Date | 2002/9/20 |
| Paper # | ICD2002-103 |
| Volume (vol) | vol.102 |
| Number (no) | 340 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |