| Presentation | 2004/4/16 Signal Form Correction for OFDM to Reduce Inter-Carrier Interference due to Doppler Spread Gagik MKRTCHYAN, Kazuo MORI, Hideo KOBAYASHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper analyzes the immediate cause of the ICI in the OFDM systems due to the Doppler spread. As was shown, ICI occurs because of the direct using of the DFT (FFT) and IDFT (IFFT) for signal conversion from time domain into frequency domain, and vice versa, when the duration and bandwidth of signal are limited. It was proposed the method, which refines the spectral density function of subcarriers, when applied in the transmission side, and improves the characteristics of the DFT as a digital filter, when applied in the receiver side. Designed simulation includes, working under the same conditions, models of conventional OFDM, PCC-OFDM and proposed method. Results of the simulation show mat proposed method provides up to the 10 times less BER, compared with PCC-OFDM and up to the 100 times less BER, compared with conventional OFDM, which allows mobile communications for the vehicle speed at 500km/h and higher. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / DFT / ICI cancellation |
| Paper # | RCS2004-41,v |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 2004/4/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Quality (CQ) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Signal Form Correction for OFDM to Reduce Inter-Carrier Interference due to Doppler Spread |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | DFT |
| Keyword(3) | ICI cancellation |
| 1st Author's Name | Gagik MKRTCHYAN |
| 1st Author's Affiliation | Graduate School of Engineering, Mie University() |
| 2nd Author's Name | Kazuo MORI |
| 2nd Author's Affiliation | Graduate School of Engineering, Mie University |
| 3rd Author's Name | Hideo KOBAYASHI |
| 3rd Author's Affiliation | Graduate School of Engineering, Mie University |
| Date | 2004/4/16 |
| Paper # | RCS2004-41,v |
| Volume (vol) | vol.104 |
| Number (no) | 22 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |