| Presentation | 2006-01-26 A Peak Power Reduction Method with a reduced Inter-signal Interference for OFCDM Signal Naoki AIZAWA, Osamu MUTA, Yoshihiko AKAIWA, Mamoru SAWAHASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The OFCDM(Orthogonal Frequency and Code Division Multiplexing) system is receiving attention to achieve a high data rate transmission. A problem with the system is that PAPR (Peak to Average Power Ratio) of the OFCDM signal becomes high. As a method to reduce peak power, peak reducing signal addition (PRSA) method and clipping and filtering method (C&F) are known. These methods have the disadvantage that the inter-signal interference appears due to the peak reduction. In this paper, we propose a novel peak reduction method which suppresses the inter-signal interference for OFCDM Signal. In the proposed method, peak power is reduced by adding the peak reducing signal generated with soft-clipping function. At the receiver, the inter-signal interference is compensated by estimating the peak components removed at the transmitter from the received signal. With computer simulation, we show the peak power reduction performance is improved as compared with that of the conventional PRSA method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFCDM / Peak power reduction / Adaptive predistorter |
| Paper # | RCS2005-124 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2006/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Peak Power Reduction Method with a reduced Inter-signal Interference for OFCDM Signal |
| Sub Title (in English) | |
| Keyword(1) | OFCDM |
| Keyword(2) | Peak power reduction |
| Keyword(3) | Adaptive predistorter |
| 1st Author's Name | Naoki AIZAWA |
| 1st Author's Affiliation | Graduate School of Information & Electrial Engineering, Kyushu University() |
| 2nd Author's Name | Osamu MUTA |
| 2nd Author's Affiliation | Graduate School of Information & Electrial Engineering, Kyushu University |
| 3rd Author's Name | Yoshihiko AKAIWA |
| 3rd Author's Affiliation | Graduate School of Information & Electrial Engineering, Kyushu University |
| 4th Author's Name | Mamoru SAWAHASHI |
| 4th Author's Affiliation | IP Radio Network Development Department, NTT DoCoMo, Inc |
| Date | 2006-01-26 |
| Paper # | RCS2005-124 |
| Volume (vol) | vol.105 |
| Number (no) | 559 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |