| Presentation | 2008/10/30 PAPR reduction and Pre-distortion techniques against Non-linear Distortion of Satellite WiBro(Transmission Technology) Robin Shrestha, Myung Hwan Seo, Gyeong Wan Go, Byung Seub Lee, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A major drawback of Orthogonal Frequency Division Multiplexing (OFDM) system is high peak-to-average power ratio (PAPR) of the transmitted signal which introduces inevitable non-linear distortion in the transmission due to the amplifier non-linear property. This causes both in-band distortion and out of band spectrum re-growth. A polynomial based pre-distortion is estimated using the non-linear and inverse non-linear polynomial achieved through the Least Square Error (LSE) method. A new technique of PAPR reduction called 'Phase Realignment' (PR) is proposed which has a optimal effect in improving the BER performance as well as considerable reduction in the PAPR. In this paper we used the PR method along with the 'Peak Clipping' (PC) method is used before the pre-distortion to remove the high peak present in the non constant amplitude of the OFDM signal responsible to drive the amplifier in near saturation region for better performance of the system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite WiBro / OFDM / LSE / Phase Realignment / Pre-distortion |
| Paper # | SAT2008-40 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2008/10/30(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) | PAPR reduction and Pre-distortion techniques against Non-linear Distortion of Satellite WiBro(Transmission Technology) |
| Sub Title (in English) | |
| Keyword(1) | Satellite WiBro |
| Keyword(2) | OFDM |
| Keyword(3) | LSE |
| Keyword(4) | Phase Realignment |
| Keyword(5) | Pre-distortion |
| 1st Author's Name | Robin Shrestha |
| 1st Author's Affiliation | School of Information and Telecommunication Engineering, Korea Aerospace University() |
| 2nd Author's Name | Myung Hwan Seo |
| 2nd Author's Affiliation | School of Information and Telecommunication Engineering, Korea Aerospace University |
| 3rd Author's Name | Gyeong Wan Go |
| 3rd Author's Affiliation | Korea Aerospace Univ. |
| 4th Author's Name | Byung Seub Lee |
| 4th Author's Affiliation | Korea Aerospace Univ. |
| Date | 2008/10/30 |
| Paper # | SAT2008-40 |
| Volume (vol) | vol.108 |
| Number (no) | 274 |
| Page | pp.pp.- |
| #Pages | 10 |
| Date of Issue | |