| Presentation | 2008-08-28 A Study of Iterative Detection and Decoding in LDPC-Coded MIMO for an 800MHz-band FPU System Kazuhiko MITSUYAMA, Kohei KAMBARA, Takayuki NAKAGAWA, Tetsuomi IKEDA, Tomoaki OHTSUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been studying MIMO techniques to enhance the frequency use efficiency of an 800MHz-band FPU system, which is often used for mobile relay broadcasting. After conducting a transmission experiment in an urban area, it was confirmed that the ability to separate transmitted streams decreases in a line-of-sight (LOS) environment where the receiver is far from the transmitter, or in an environment where a power difference between received streams exists. We then examined the possibility of improving the signal detection performance in the same environments using iterative detection and decoding (IDD) in LDPC-Coded MIMO for the 800MHz-band FPU system. However, when introducing long term interleaving into the system, the general IDD receiver with a de-interleaver and an interleaver is not a practical solution because it causes a long processing delay in proportion to the number of IDD loops. In this report, we propose an IDD receiver that is equipped with a de-interleaver before the spatial filter processing to solve the time delay problem, and then show by computer simulation that it can improve the bit error rate effectively in either or both of the two previously mentioned environments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / LDPC / MMSE-SIC / LOS / IDD / FPU / OFDM / Interleave |
| Paper # | RCS2008-80 |
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| Committee | RCS |
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| Conference Date | 2008/8/20(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 Study of Iterative Detection and Decoding in LDPC-Coded MIMO for an 800MHz-band FPU System |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | LDPC |
| Keyword(3) | MMSE-SIC |
| Keyword(4) | LOS |
| Keyword(5) | IDD |
| Keyword(6) | FPU |
| Keyword(7) | OFDM |
| Keyword(8) | Interleave |
| 1st Author's Name | Kazuhiko MITSUYAMA |
| 1st Author's Affiliation | Science and Technical Research Laboratories, NHK() |
| 2nd Author's Name | Kohei KAMBARA |
| 2nd Author's Affiliation | Science and Technical Research Laboratories, NHK |
| 3rd Author's Name | Takayuki NAKAGAWA |
| 3rd Author's Affiliation | Science and Technical Research Laboratories, NHK |
| 4th Author's Name | Tetsuomi IKEDA |
| 4th Author's Affiliation | Science and Technical Research Laboratories, NHK |
| 5th Author's Name | Tomoaki OHTSUKI |
| 5th Author's Affiliation | Science and Technology, Keio University |
| Date | 2008-08-28 |
| Paper # | RCS2008-80 |
| Volume (vol) | vol.108 |
| Number (no) | 188 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |