| Presentation | 2007/6/7 A Study of Guard Interval Using Estimation of Channel Impulse Response for OFDM Systems Hideaki TANAKA, Naoto SASAOKA, Yoshio ITOH, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In an orthogonal frequency division multiplexing (OFDM) system, a guard interval (GI) is usually used to remove the inter-symbol interference (ISI) due to a multipath fading channel. The GI length must be longer than the maximum delay of a multipath channel. In this paper, we propose an adaptive control method of guard interval length. In this method, a channel impulse response is estimated by applying inverse fast fourier trasform (IFFT) to the estimated frequency-domain channel response. Next, the maximum delay of channel impulse response is estimated from the channel impulse response, and the optimal length of the guard interval is decided by the maximum delay. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM system / multipath / guard interval / channel impulse response / maximum delay |
| Paper # | SIS2007-7 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2007/6/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Guard Interval Using Estimation of Channel Impulse Response for OFDM Systems |
| Sub Title (in English) | |
| Keyword(1) | OFDM system |
| Keyword(2) | multipath |
| Keyword(3) | guard interval |
| Keyword(4) | channel impulse response |
| Keyword(5) | maximum delay |
| 1st Author's Name | Hideaki TANAKA |
| 1st Author's Affiliation | Faculty of Engineering, Tottori University() |
| 2nd Author's Name | Naoto SASAOKA |
| 2nd Author's Affiliation | Faculty of Engineering, Tottori University |
| 3rd Author's Name | Yoshio ITOH |
| 3rd Author's Affiliation | Faculty of Engineering, Tottori University |
| Date | 2007/6/7 |
| Paper # | SIS2007-7 |
| Volume (vol) | vol.107 |
| Number (no) | 93 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |