| Presentation | 2015-04-17 Collaborative Interference Cancellation on MU-MIMO Transmissions with QRM-MLD Ilmiawan Shubhi, Hidekazu Murata, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, multi-user multiple-input multiple-output (MU-MIMO) systems are widely studied. In these systems, spatial precoding techniques are commonly used for inter-user interference mitigation. However, these techniques require perfect knowledge of downlink channel state information (CSI) on the transmitter which is hardly achieved in a high mobility environment. One possible approach for this environment is the implementation of a collaborative interference cancellation (CIC) technique. In this technique, collaborating mobile stations (MSs) share their receive signals and can be regarded as one station equipped with many antennas. To obtain efficient signal-exchanges between collaborating users, user selection can be implemented to select C users from N available users. In this paper, a user selection scheme suitable for a QRM-MLD algorithm is proposed. Numerical results obtained through computer simulations show that the proposed scheme is able to provide an equal diversity compared to N users collaboration with a feasible computational complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MU-MIMO / Collaborative interference cancellation / User selection / QRM-MLD |
| Paper # | RCS2015-14 |
| Date of Issue | 2015-04-09 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2015/4/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yufuin, Yufugoukan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio Access Technologies, etc. |
| Chair | Makoto Taromaru(Fukuoka Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Eiji Okamoto(NTT DoCoMo) |
| Assistant | Jun Mashino(NTT) / Manabu Mikami(Softbank Mobile) / Toshiaki Yamamoto(KDDI R&D Labs.) / Takamichi Inoue(NEC) / Tetsuya Yamamoto(Panasonic) / Koji Ishibashi(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Collaborative Interference Cancellation on MU-MIMO Transmissions with QRM-MLD |
| Sub Title (in English) | |
| Keyword(1) | MU-MIMO |
| Keyword(2) | Collaborative interference cancellation |
| Keyword(3) | User selection |
| Keyword(4) | QRM-MLD |
| 1st Author's Name | Ilmiawan Shubhi |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Hidekazu Murata |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2015-04-17 |
| Paper # | RCS2015-14 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-2 |
| Page | pp.pp.71-76(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-04-09 (RCS) |