| Presentation | 2007-04-20 Proposal of Demodulation Method for OFDM System under Multi-path Fading Environments with Delay Spread Greater than Guard Interval Kazuya MORIWAKI, Katsuhiro NAITO, Kazuo MORI, Hideo KOBAYASHI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The orthogonal frequency division multiplexing technique (OFDM) has recently received considerable attention in the fields of wireless communications for its efficient usage of frequency bandwidth and robustness to the multi-path fading. However, the bit error rate (BER) performance of OFDM technique would be degraded severaly due to the occurrence of inter carrier interference (ICI) and inter symbol interference (ISI) when the delay spread is larger than the predetermined guard interval (GI). This paper proposes a novel demodulation method for OFDM system, which can achiece the better BER performance under the multi-path fading environments even when the delay spread is larger than the GI. The feature of proposed method is to reconstruct the delay signals of exceeding the GI by using the estimated time domain channel impulse response and the temporary decision data information. This paper presents various computer simulation results under the static and mobile conditions to verify the effectiveness of proposed method as comparing with the conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / Guard Interval / ISI / ICI / Maximum Likelihood(ML) |
| Paper # | SAT2007-5 |
| Date of Issue |
| Conference Information | |
| Committee | SAT |
|---|---|
| Conference Date | 2007/4/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal of Demodulation Method for OFDM System under Multi-path Fading Environments with Delay Spread Greater than Guard Interval |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | Guard Interval |
| Keyword(3) | ISI |
| Keyword(4) | ICI |
| Keyword(5) | Maximum Likelihood(ML) |
| 1st Author's Name | Kazuya MORIWAKI |
| 1st Author's Affiliation | Graduate School of Engineering, Mie University() |
| 2nd Author's Name | Katsuhiro NAITO |
| 2nd Author's Affiliation | Graduate School of Engineering, Mie University |
| 3rd Author's Name | Kazuo MORI |
| 3rd Author's Affiliation | Graduate School of Engineering, Mie University |
| 4th Author's Name | Hideo KOBAYASHI |
| 4th Author's Affiliation | Graduate School of Engineering, Mie University |
| Date | 2007-04-20 |
| Paper # | SAT2007-5 |
| Volume (vol) | vol.107 |
| Number (no) | 11 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |