| Presentation | 2004/2/26 Eigenvector mismatch problem and its countermeasure for MIMO MRC transmission : In the case of Inter-Vehicle Communications at 60GHz Ryoichi TAKEMOTO, Tetsuki TANIGUCHI, Yoshio KARASAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper deals with eigenvector mismatch problem encountered in the open-loop-control MIMO (Multiple-Input Multiple-Output) transmission systems, particularly, at the maximal ratio combining transmission. We presumes a channel response matrix in both transmitter side and reciever side based on TDD data transmission system, and both-side array weights are determined by open-loop controle scheme. The mismatch problem is occured when two eigenvalues of the correlation matrix become closer or equal. First, we caluculate the eigenvalues in IVC(Inter Vehicle Communication) propagation channel at 60GHz and examine the recieved power where serious signal degradation occurs frequently in MIMO-MRC(Maximum-Ratio-Combining) data transmission. Then, three methods are proposed, namely, Selection, Feedback and MRC reception, in order to avoid depression of the power at the time of the eigenvalue to become closer or equal. Particularly, MRC reception realizes stable and high received power. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / Maximum-Ratio-Combining(MRC) / Intelligent Transport Systems(ITS) / Inter Vehicle Communication(IVC) / Road surface Refection |
| Paper # | WBS2003-131,A・P2003-324,RCS2003-347,MoMuC2003-137,MW2003-293 |
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| Conference Information | |
| Committee | MoMuC |
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| Conference Date | 2004/2/26(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Mobile Multimedia Communications(MoMuC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Eigenvector mismatch problem and its countermeasure for MIMO MRC transmission : In the case of Inter-Vehicle Communications at 60GHz |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | Maximum-Ratio-Combining(MRC) |
| Keyword(3) | Intelligent Transport Systems(ITS) |
| Keyword(4) | Inter Vehicle Communication(IVC) |
| Keyword(5) | Road surface Refection |
| 1st Author's Name | Ryoichi TAKEMOTO |
| 1st Author's Affiliation | Department of Electronic Engineering, The University of Electro-Communications() |
| 2nd Author's Name | Tetsuki TANIGUCHI |
| 2nd Author's Affiliation | Department of Electronic Engineering, The University of Electro-Communications |
| 3rd Author's Name | Yoshio KARASAWA |
| 3rd Author's Affiliation | Department of Electronic Engineering, The University of Electro-Communications |
| Date | 2004/2/26 |
| Paper # | WBS2003-131,A・P2003-324,RCS2003-347,MoMuC2003-137,MW2003-293 |
| Volume (vol) | vol.103 |
| Number (no) | 684 |
| Page | pp.pp.- |
| #Pages | 6 |
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