| Presentation | 2010-03-04 Adaptive THP Scheme Control for Downlink MU-MIMO Systems Hiroshi NAKANO, Hiromichi TOMEBA, Kozue HIRATA, Shimpei TOH, Takashi ONODERA, Minoru KUBOTA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a new adaptive transmission-scheme control of Tomlinson Harashima Precoding (THP) on downlink (DL) Multi-User Multiple Input Multiple Output (DL MU-MIMO) systems. MU-MIMO THP multiplexes Mobile Terminals (MT) to provide high performance even under low orthogonal channel. Modulo-operations suppress transmission power on canceling the Multi-User Interference (MUI), but at the same time, the Modulo-operations cause the secondary effects of performance degradations. On the other hand, the Linear Precoding (LP) scheme, without any Modulo-operation, avoids the degradation and achieves the sufficient performance under highly orthogonal channel. The proposed scheme implements Modulo-operation for the MTs suffering strong MUI and skips Modulo-operation for the MTs facing no strong MUI. This paper describes these adaptive switching of Modulo-operation and proves the gain of 3.8 dB from MU-MIMO LP and 0.7 dB from MU-MIMO THP on the bit error performance with computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Tomlinson Harashima Precoding / Multi-user MIMO |
| Paper # | RCS2009-293 |
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| Committee | RCS |
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| Conference Date | 2010/2/24(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) | Adaptive THP Scheme Control for Downlink MU-MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | Tomlinson Harashima Precoding |
| Keyword(2) | Multi-user MIMO |
| 1st Author's Name | Hiroshi NAKANO |
| 1st Author's Affiliation | Advanced Image & Telecommunication Laboratories, Corporate R&D Group, Sharp Corporation() |
| 2nd Author's Name | Hiromichi TOMEBA |
| 2nd Author's Affiliation | Advanced Image & Telecommunication Laboratories, Corporate R&D Group, Sharp Corporation |
| 3rd Author's Name | Kozue HIRATA |
| 3rd Author's Affiliation | Advanced Image & Telecommunication Laboratories, Corporate R&D Group, Sharp Corporation |
| 4th Author's Name | Shimpei TOH |
| 4th Author's Affiliation | Advanced Image & Telecommunication Laboratories, Corporate R&D Group, Sharp Corporation |
| 5th Author's Name | Takashi ONODERA |
| 5th Author's Affiliation | Advanced Image & Telecommunication Laboratories, Corporate R&D Group, Sharp Corporation |
| 6th Author's Name | Minoru KUBOTA |
| 6th Author's Affiliation | Advanced Image & Telecommunication Laboratories, Corporate R&D Group, Sharp Corporation |
| Date | 2010-03-04 |
| Paper # | RCS2009-293 |
| Volume (vol) | vol.109 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |