| Presentation | 2010-03-04 Extensions of Linear Constraint Adaptive Array and Zero Forcing for Spectrum Sharing Environments Hiromasa FUJII, Takahiro ASAI, Tomoyuki OHYA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Linearly Power Constraint Adaptive Array (LPCAA) and adaptive array using Zero Forcing (ZF) have been investigated to increase the transmit opportunities of low priority systems under the spectrum sharing condition in [6]. The applicable conditions of LPCAA, however, were limited and wanted signal enhancement was not considered by ZF in the study. Then, this paper extends LPCAA capable to apply the case when the victim receiver and/or the wanted receiver have multiple antennas. Moreover wanted signal enhancement for ZF is investigated by further applying selection/combining for possible weight candidates. Numerical results are given to compare performance in terms of signal to interference ratios (SIRs). The results show that linear power constrained array antenna and null space based array antenna with maximum ratio combining show the identical SIR distribution.MIMO |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Adaptive Array / Spectrum Sharing / Null-Space / Lagrange multiplier method |
| Paper # | RCS2009-292 |
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| Conference Information | |
| 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) | Extensions of Linear Constraint Adaptive Array and Zero Forcing for Spectrum Sharing Environments |
| Sub Title (in English) | |
| Keyword(1) | Adaptive Array |
| Keyword(2) | Spectrum Sharing |
| Keyword(3) | Null-Space |
| Keyword(4) | Lagrange multiplier method |
| 1st Author's Name | Hiromasa FUJII |
| 1st Author's Affiliation | Research Laboratories, NTT DOCOMO, INC.() |
| 2nd Author's Name | Takahiro ASAI |
| 2nd Author's Affiliation | Research Laboratories, NTT DOCOMO, INC. |
| 3rd Author's Name | Tomoyuki OHYA |
| 3rd Author's Affiliation | Research Laboratories, NTT DOCOMO, INC. |
| Date | 2010-03-04 |
| Paper # | RCS2009-292 |
| Volume (vol) | vol.109 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |