| Presentation | 2004/10/15 QAM-OFDM System with IDAR Method in Satellite Channel(Advanced Technology)(Joint Conference on Satellite Communications 2004(JC-SAT 2004)) Pisit Boonsrimuang, Kazuo Mori, Tawil Paungma, Hideo Kobayashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The future satellite communications system is required to support the higher transmission data rate for providing the multimedia services by employing the efficient modulation method such as multi-level QAM. However, the employment of multi-level QAM in the satellite channel would cause the fatal degradation of signal quality due to the non-linear amplifiers located at the earth station and satellite. To overcome this problem, we have proposed the multi-level QAM-OFDM technique with IDAR (unproved Decision Aided Reconstruction) method. In the IDAR method, the characteristic of non-linear amplifier is required as the known data at the receiver for mitigating the inter-modulation noise. This paper proposes the estimation method for AM-AM and AM-PM characteristics of non-linear amplifier by using the low PAPR (Peak to Averaged Power Ratio) preamble symbols. This paper presents various computer simulation results to verify the effectiveness of proposed method in the non-linear satellite channel. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite channel / SSPA / TWTA / OFDM / IDAR |
| Paper # | SAT2004-146 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2004/10/15(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | QAM-OFDM System with IDAR Method in Satellite Channel(Advanced Technology)(Joint Conference on Satellite Communications 2004(JC-SAT 2004)) |
| Sub Title (in English) | |
| Keyword(1) | Satellite channel |
| Keyword(2) | SSPA |
| Keyword(3) | TWTA |
| Keyword(4) | OFDM |
| Keyword(5) | IDAR |
| 1st Author's Name | Pisit Boonsrimuang |
| 1st Author's Affiliation | Faculty of Engineering, Mie University() |
| 2nd Author's Name | Kazuo Mori |
| 2nd Author's Affiliation | Faculty of Engineering, Mie University |
| 3rd Author's Name | Tawil Paungma |
| 3rd Author's Affiliation | Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang |
| 4th Author's Name | Hideo Kobayashi |
| 4th Author's Affiliation | Faculty of Engineering, Mie University |
| Date | 2004/10/15 |
| Paper # | SAT2004-146 |
| Volume (vol) | vol.104 |
| Number (no) | 352 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |