| Presentation | 2012-03-08 ISI and ICI Compensation with Large Delay Spread Channel Estimation based on Pilot Symbol's Cyclic Property for SP-OFDM TAICHI Sakaue, Chang-Jun AHN, Tatsuya OMORI, Kenya HASHIMOTO, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Scattered pilot based OFDM can accuretely estimate the channel state information (CSI) with small number pilot signals under the fast fading channel. In OFDM, the guard interval (GI) is inserted in order to eliminate the inter-symbol-interference (ISI) and inter-carrier-interference (ICI) due multipath fading. In general, GI is usually designed to be longer than the delay spread of channel. Furthermore, the channel estimation of SP is property operated since data signals are assigned between scattered pilots. To overcome this problem, in this thesis, we propose the novel FFT interpolation method with considering the pilot cyclic property and ISI and ICI compensation method. In the proposed method, the time domain impulses are calculated by using FFT interpolation with null signal and the faraway responses by using the threshold of noise variance. In addition, we eliminate ISI and ICI using the identified CSI. From the simulation result, the proposed method can achieve superior BER performance compared with the conventional SP-OFDM under the large delay spread channels. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | SP-OFDM / cyclic property of pilot / FFT interpolation ISI / ICI |
| Paper # | CAS2011-122,SIP2011-142,CS2011-114 |
| Date of Issue |
| Conference Information | |
| Committee | CAS |
|---|---|
| Conference Date | 2012/3/1(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 | Circuits and Systems (CAS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | ISI and ICI Compensation with Large Delay Spread Channel Estimation based on Pilot Symbol's Cyclic Property for SP-OFDM |
| Sub Title (in English) | |
| Keyword(1) | SP-OFDM |
| Keyword(2) | cyclic property of pilot |
| Keyword(3) | FFT interpolation ISI |
| Keyword(4) | ICI |
| 1st Author's Name | TAICHI Sakaue |
| 1st Author's Affiliation | Faculty of Engineering, Chiba University() |
| 2nd Author's Name | Chang-Jun AHN |
| 2nd Author's Affiliation | Faculty of Engineering, Chiba University |
| 3rd Author's Name | Tatsuya OMORI |
| 3rd Author's Affiliation | Faculty of Engineering, Chiba University |
| 4th Author's Name | Kenya HASHIMOTO |
| 4th Author's Affiliation | Faculty of Engineering, Chiba University |
| Date | 2012-03-08 |
| Paper # | CAS2011-122,SIP2011-142,CS2011-114 |
| Volume (vol) | vol.111 |
| Number (no) | 465 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |