| Paper Abstract and Keywords |
| Presentation |
2005-10-21 11:15
Performance Evaluation of Transmission Beamforming Method for reducing operational load in an indoor environment
Riichi Kudo, Kentaro Nishimori, Yasushi Takatori, Koichi Tsunekawa (NTT) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
MIMO-OFDM enable the application of spatial multiplexing as a way of increasing transmission rate. When the transmitter knows the channel status information (CSI), an eigenvector beamforming scheme is well known as a way of achieving the maximum channel capacity. However, since the calculation of the eigenvectors in all sub-carriers at the transmitter is complex, its computation costs overload the transmitter. In this paper, a new beamforming method is proposed to reduce a computational load at a transmitter. The proposed method employs Gram-Schmidt Orthogonalization to a Hermitian matrix of a channel matrix and uses the obtained unitary matrix as transmission weight vectors. We evaluate the performance of the proposed method by using computer simulation and the experimental measurements in an actual indoor environment using a transceiver developed for MIMO-OFDM. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
MIMO / Beamforming / Orthogonarization / OFDM / Indoor environment / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 355, AP2005-103, pp. 109-114, Oct. 2005. |
| Paper # |
AP2005-103 |
| Date of Issue |
2005-10-13 (AP) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
AP RCS |
| Conference Date |
2005-10-20 - 2005-10-21 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Akita Prefectural Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Adaptive Antenna, MIMO, RF Signal Processing etc. |
| Paper Information |
| Registration To |
AP |
| Conference Code |
2005-10-AP-RCS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Performance Evaluation of Transmission Beamforming Method for reducing operational load in an indoor environment |
| Sub Title (in English) |
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| Keyword(1) |
MIMO |
| Keyword(2) |
Beamforming |
| Keyword(3) |
Orthogonarization |
| Keyword(4) |
OFDM |
| Keyword(5) |
Indoor environment |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Riichi Kudo |
| 1st Author's Affiliation |
NTT (NTT) |
| 2nd Author's Name |
Kentaro Nishimori |
| 2nd Author's Affiliation |
NTT (NTT) |
| 3rd Author's Name |
Yasushi Takatori |
| 3rd Author's Affiliation |
NTT (NTT) |
| 4th Author's Name |
Koichi Tsunekawa |
| 4th Author's Affiliation |
NTT (NTT) |
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| Speaker |
Author-1 |
| Date Time |
2005-10-21 11:15:00 |
| Presentation Time |
25 minutes |
| Registration for |
AP |
| Paper # |
AP2005-103 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.355 |
| Page |
pp.109-114 |
| #Pages |
6 |
| Date of Issue |
2005-10-13 (AP) |
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