| Presentation | 2014-08-19 An evaluation of multiuser MIMO throughput in a distributed antenna system with signal distribution Yuki NAKANISHI, Toshihiko NISHIMURA, Takeo OHGANE, Yasutaka OGAWA, Yusuke OHWATARI, Yoshihisa KISHIYAMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A distributed antenna system, where antennas of a base station are spatially distributed over the cell, can improve throughput at the cell edge compared to a centralized antenna system but reduces peak throughput. Therefore, it is expected that we can obtain higher throughput by increasing the number of antennas per remote antenna unit. In general, we need to send as many pilot sequences as transmit antennas to estimate channel state information and thus transmission efficiency degrades. In this paper, we present a novel system where we distribute the same signal to several antennas to increase the number of antennas without increasing the number of pilot sequences. We show the throughput improvement with signal distribution and evaluate the effect of weighted signal distribution. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | distributed antenna system / multiuser MIMO / throughput / pilot sequence |
| Paper # | RCS2014-140 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2014/8/12(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) | An evaluation of multiuser MIMO throughput in a distributed antenna system with signal distribution |
| Sub Title (in English) | |
| Keyword(1) | distributed antenna system |
| Keyword(2) | multiuser MIMO |
| Keyword(3) | throughput |
| Keyword(4) | pilot sequence |
| 1st Author's Name | Yuki NAKANISHI |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Toshihiko NISHIMURA |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Takeo OHGANE |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 4th Author's Name | Yasutaka OGAWA |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 5th Author's Name | Yusuke OHWATARI |
| 5th Author's Affiliation | NTT DOCOMO, INC. |
| 6th Author's Name | Yoshihisa KISHIYAMA |
| 6th Author's Affiliation | NTT DOCOMO, INC. |
| Date | 2014-08-19 |
| Paper # | RCS2014-140 |
| Volume (vol) | vol.114 |
| Number (no) | 180 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |