| Presentation | 2011-06-23 Channel Capacity of Interference Alignment in MIMO Interference Channels with Channel Estimation Error and Channel Time-Variation Takayuki SHIMIZU, Akihisa YOKOYAMA, Hisato IWAI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Interference alignment (IA) is a transmission technique that improves the spatial multiplexing gain for multiple-input multiple-output (MIMO) interference channels. The key idea of IA is to design transmit precoding matrices in such a way that all interference signals are aligned into a signal subspace at each receiver in order to minimize the dimensions of the signal subspace occupied by the interference signals, while maintaining the interference-free subspace at each receiver. One of the advantages of IA is that it requires only global channel state information, and transmitters do not need to share transmitted data. In this paper, we compare the sum-rate capacity of IA with those of other cooperative MIMO transmission techniques through numerical simulations. In addition, we evaluate the sum-rate capacity of IA in MIMO interference channels with channel estimation error and channel time-variation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO interference channel / cooperative MIMO / interference alignment / channel capacity / ITS |
| Paper # | RCS2011-44 |
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| Committee | RCS |
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| Conference Date | 2011/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | Channel Capacity of Interference Alignment in MIMO Interference Channels with Channel Estimation Error and Channel Time-Variation |
| Sub Title (in English) | |
| Keyword(1) | MIMO interference channel |
| Keyword(2) | cooperative MIMO |
| Keyword(3) | interference alignment |
| Keyword(4) | channel capacity |
| Keyword(5) | ITS |
| 1st Author's Name | Takayuki SHIMIZU |
| 1st Author's Affiliation | Graduate School of Engineering, Doshisha University() |
| 2nd Author's Name | Akihisa YOKOYAMA |
| 2nd Author's Affiliation | TOYOTA Info Technology Center, U.S.A., Inc. |
| 3rd Author's Name | Hisato IWAI |
| 3rd Author's Affiliation | Graduate School of Engineering, Doshisha University |
| Date | 2011-06-23 |
| Paper # | RCS2011-44 |
| Volume (vol) | vol.111 |
| Number (no) | 94 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |