| Presentation | 2005/2/25 A Novel Approach for Opportunistic Beamforming with Packet Cellular Systems Yoshiaki AMANO, Toshiyuki MAEYAMA, Takashi INOUE, Yoshio TAKEUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose the random beamforming algorithm to generate a weight vector in downlink of packet cellular systems. The random beamforming has attracted the attention as a mean of increasing channel fluctuation to exploit multiuser diversity with simple transmit beamforming which varies the weight vector randomly. We especially note the random beamforming can improve SINR of mobile stations who remain stationary in the edge of the cell to decrease inter-cell interference when the mobile stations are scheduled. In order to improve further, we propose to add a phase speed fluctuating function to the conventional phase variation of the weight vector in a constant phase speed. The phase speed fluctuating function varies the phase speed randomly and increases independence between the fluctuations of the SINR received at MS from BSs included the adjacent ones. From simulation results we confirm that the MS throughput with the proposed algorithm is improved better than that of the conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | random beamforming / opportunistic beamforming / transmit beamforming / packet cellular system / scheduling |
| Paper # | WBS2004-163,A・P2004-344,RCS2004-431,MoMuC2004-214,MW2004-341 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2005/2/25(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 Novel Approach for Opportunistic Beamforming with Packet Cellular Systems |
| Sub Title (in English) | |
| Keyword(1) | random beamforming |
| Keyword(2) | opportunistic beamforming |
| Keyword(3) | transmit beamforming |
| Keyword(4) | packet cellular system |
| Keyword(5) | scheduling |
| 1st Author's Name | Yoshiaki AMANO |
| 1st Author's Affiliation | KDDI R&D Laboratories Inc.() |
| 2nd Author's Name | Toshiyuki MAEYAMA |
| 2nd Author's Affiliation | KDDI R&D Laboratories Inc. |
| 3rd Author's Name | Takashi INOUE |
| 3rd Author's Affiliation | KDDI R&D Laboratories Inc. |
| 4th Author's Name | Yoshio TAKEUCHI |
| 4th Author's Affiliation | KDDI R&D Laboratories Inc. |
| Date | 2005/2/25 |
| Paper # | WBS2004-163,A・P2004-344,RCS2004-431,MoMuC2004-214,MW2004-341 |
| Volume (vol) | vol.104 |
| Number (no) | 680 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |