| Presentation | 2003/6/17 Rate-Compatible High-Rate Turbo Codes for Adaptive Modulation Tadashi MINOWA, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An adaptive modulation technique is a transmission scheme for adapting modulation types of a transmitter to the condition of time-varying channels. In particular, this adaptive modulation is effective for satellite communications because satellite links are relatively stable as compared with terrestrial communications. A key component of the adaptive modulation is a rate-compatible coding scheme. We present a new rate-compatible coding scheme that uses an originally high-rate convolutional code with repetition coding scheme in order to generate lower-rate convolutional codes, while most of the conventional schemes use a puncturing technique that punctures part of parity bits generated by a rate-1/2 convolutional code. (The former is called the punctured convolutional code, and the latter is called the unpunctured convolutional code.) However, the unpunctured convolutional code suffers increasingly growing decoding complexity in response to the code rate. To solve this problem in the field of turbo coding, we also propose a new iterative decoding algorithm for high-rate turbo codes which employ high-rate convolutional codes as component codes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Adaptive modulation / rate-compatibility / high-rate turbo codes / soft-input-soft-output / satellite communications |
| Paper # | WBS2003-35,SAT2003-27 |
| Date of Issue |
| Conference Information | |
| Committee | SAT |
|---|---|
| Conference Date | 2003/6/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Rate-Compatible High-Rate Turbo Codes for Adaptive Modulation |
| Sub Title (in English) | |
| Keyword(1) | Adaptive modulation |
| Keyword(2) | rate-compatibility |
| Keyword(3) | high-rate turbo codes |
| Keyword(4) | soft-input-soft-output |
| Keyword(5) | satellite communications |
| 1st Author's Name | Tadashi MINOWA |
| 1st Author's Affiliation | Kashima Space Research Center, Communications Research Laboratory() |
| Date | 2003/6/17 |
| Paper # | WBS2003-35,SAT2003-27 |
| Volume (vol) | vol.103 |
| Number (no) | 141 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |