| Presentation | 2011-02-25 Compensation of transponder nonlinearity for superpositioning satellite communications Hiroki MATSUDA, Takehiro ISHIGURO, Kayoko OSAWA, Takao HARA, Minoru OKADA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the power limited satellite system it is mandatory to use the transponder amplifier effectively as far as possible. High transmission efficiency cab be achieved not only by adopting frequency super-positioning scheme but also by transmitting signal in the saturated region of satellite power amplifier. When the signal is transmitted in the saturated region, it is suffered from the nonlinear effects of the amplifier. It is therefore very important to study the effects of nonlinearity on to the performance of interference canceller. Therefore, in this study, a scheme of post- compensation of the nonlinearity is proposed here to put in front of the canceller to reduce the effects of it and to improve the transmission performance. The effects of nonlinearity on to the PSK signal without compensation is shown first, and then it is shown by computer simulation that the proposed scheme works well for compensating nonlinearity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite Communications / Frequency Reuse / Interference Canceller / Carrier Super-positioning / Nonlinearity / TWTA |
| Paper # | SAT2010-82 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2011/2/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Chair | |
| Vice Chair | |
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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) | Compensation of transponder nonlinearity for superpositioning satellite communications |
| Sub Title (in English) | |
| Keyword(1) | Satellite Communications |
| Keyword(2) | Frequency Reuse |
| Keyword(3) | Interference Canceller |
| Keyword(4) | Carrier Super-positioning |
| Keyword(5) | Nonlinearity |
| Keyword(6) | TWTA |
| 1st Author's Name | Hiroki MATSUDA |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute Science and Technology() |
| 2nd Author's Name | Takehiro ISHIGURO |
| 2nd Author's Affiliation | Graduate School of Information Science, Nara Institute Science and Technology |
| 3rd Author's Name | Kayoko OSAWA |
| 3rd Author's Affiliation | Graduate School of Information Science, Nara Institute Science and Technology |
| 4th Author's Name | Takao HARA |
| 4th Author's Affiliation | Graduate School of Information Science, Nara Institute Science and Technology |
| 5th Author's Name | Minoru OKADA |
| 5th Author's Affiliation | Graduate School of Information Science, Nara Institute Science and Technology |
| Date | 2011-02-25 |
| Paper # | SAT2010-82 |
| Volume (vol) | vol.110 |
| Number (no) | 426 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |