| Presentation | 2003/8/14 A MIMO-OFDM Maximum Likelihood Reception Scheme in Co-Channel Interference Environments Yojiro YAMADA, Kazuhiko FUKAWA, Hiroshi SUZUKI, Satoshi SUYAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes a new MIMO-OFDM reception scheme that is based on the maximum likelihood (ML) estimation under rich co-channel interference conditions. The proposed receiver consists of several branch metric generators, and an ML detector that conducts signal detection by using metrics that the generators output. In the branch metric generator, a whitening filter combiner suppresses co-channel interferences by linearly combining received signals, and subtracting a replica signal from the combiner's output and squaring the result yield the metric. The coefficients of the whitening filters and impulse responses that are necessary for generating the replica signal, are simultaneously estimated by the eigenvalue-decomposition of an auto-correlation matrix of the received signals and known preambles. Also, to reduce the computational complexity, this report proposes a simplified version that possesses only one branch metric generator and estimates its parameters by the RLS algorithm. Computer simulations under the interference-limited conditions clarify that the proposed receivers can drastically alleviate degradation of BER performances from which the conventional ML-based one severely suffers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communications / OFDM / MIMO / maximum likelihood estimation / co-channel interference |
| Paper # | RCS2003-112 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2003/8/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A MIMO-OFDM Maximum Likelihood Reception Scheme in Co-Channel Interference Environments |
| Sub Title (in English) | |
| Keyword(1) | Mobile communications |
| Keyword(2) | OFDM |
| Keyword(3) | MIMO |
| Keyword(4) | maximum likelihood estimation |
| Keyword(5) | co-channel interference |
| 1st Author's Name | Yojiro YAMADA |
| 1st Author's Affiliation | Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Kazuhiko FUKAWA |
| 2nd Author's Affiliation | Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Hiroshi SUZUKI |
| 3rd Author's Affiliation | Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 4th Author's Name | Satoshi SUYAMA |
| 4th Author's Affiliation | Communications and Integrated Systems, Graduate School of Science and Engineering, Tokyo Institute of Technology |
| Date | 2003/8/14 |
| Paper # | RCS2003-112 |
| Volume (vol) | vol.103 |
| Number (no) | 253 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |