| Presentation | 2001/1/11 Delay Profile Estimation and Coherent Detection Scheme of Scattered Pilot OFDM Signal in Mobile Radio Environment Toshiaki Usami, Kazuhiko Fukawa, Hiroshi Suzuki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a new carrier recovery algorithm to achieve the coherent detection of OFDM signal in the mobile radio multipath environments. The proposed scheme estimates the delay profile (impulse response) under the MMSE criteria, and then conducts the carrier recovery for all the subcarrier signals by the Fourier transform of the estimated profile. In case of the scattered pilot symbols, a recursive estimation of the delay profile is derived by means of the RLS algorithm. When the scattered pilot symbols are not allocated to all the subcarrier signals, the delay profile estimation is demonstrated to suffer from the aliasing effect. For the purpose of verifying the system performance of the proposed algorithm, computer simulations are conducted. The simulation results show that the average BER performance coincides with the theoretical one. It is also demonstrated that the parameters of the guard time and sample number for the estimation should be adjusted appropriately in order to avoid the aliasing. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile Communication / OFDM / Carrier Recovery / Delay Profile / Scattered Pilot Symbols / RLS |
| Paper # | DSP2000-147,SAT2000-103,RCS2000-179 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2001/1/11(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Delay Profile Estimation and Coherent Detection Scheme of Scattered Pilot OFDM Signal in Mobile Radio Environment |
| Sub Title (in English) | |
| Keyword(1) | Mobile Communication |
| Keyword(2) | OFDM |
| Keyword(3) | Carrier Recovery |
| Keyword(4) | Delay Profile |
| Keyword(5) | Scattered Pilot Symbols |
| Keyword(6) | RLS |
| 1st Author's Name | Toshiaki Usami |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Kazuhiko Fukawa |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Hiroshi Suzuki |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| Date | 2001/1/11 |
| Paper # | DSP2000-147,SAT2000-103,RCS2000-179 |
| Volume (vol) | vol.100 |
| Number (no) | 559 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |