| Presentation | 2013-02-22 An Iterative ICI Cancellation for OFDM Mobile DTV Receiver Hai Minh TRAN, Tomohisa WADA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In mobile environment, the performance of OFDM mobile receivers is degraded severely because of Inter-Camer-Interference (ICI) caused by Doppler Spread Therefore, ICI canceller is an important task for the OFDM mobile receivers [1] and [2] proposed an efficient method to reduce ICI The main idea of this method is to linearly approximate time varying channel within one OFDM symbol Then a large ICI matrix equation is given However, in [1], [2], the estimated values of the channel transfer function-the diagonal of the ICI matrix is corrupted by ICI Consequently, the equalized signal still is distorted In this paper, we proposed an iterative method to improve performance of the original method We implemented Jacobi iteration method with low complexity to solve the large ICI matrix equation Next, at second iteration of Jacobi method, we improve the diagonal by removing ICI power from pilot symbols and re-estimating the channel transfer function Simulation results for ISDB-T mode 3 demonstrated that our method could double performance of the original method under TU-6 channel and Doppler Spread The improvement is better for two paths and one path Doppler channel. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Orthogonal frequency-division multiplexing (OFDM) / Jacobi Iteration / Inter-Camer Interference (ICI) |
| Paper # | SAT2012-60 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2013/2/14(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Iterative ICI Cancellation for OFDM Mobile DTV Receiver |
| Sub Title (in English) | |
| Keyword(1) | Orthogonal frequency-division multiplexing (OFDM) |
| Keyword(2) | Jacobi Iteration |
| Keyword(3) | Inter-Camer Interference (ICI) |
| 1st Author's Name | Hai Minh TRAN |
| 1st Author's Affiliation | Graduate School of Engineenng and Science, University of the Ryukyus() |
| 2nd Author's Name | Tomohisa WADA |
| 2nd Author's Affiliation | Department of Information Engineering, University of the Ryukyus |
| Date | 2013-02-22 |
| Paper # | SAT2012-60 |
| Volume (vol) | vol.112 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |