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| Presentation | 2009-07-29 13:00 [Technology Exhibit] FPGA Implementation of Transmit Beamforming in IEEE802.11n Toshihisa Nabetani, Yoshimasa Egashira, Yoriko Utsunomiya, Daisuke Takeda (Toshiba)  SR2009-33 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To improve communication robustness and extend transmission range, Multiple Input Multiple Output (MIMO) transmit beamforming method has been extensively studied and adopted in the IEEE802.11n draft standard. In transmit beamforming, not only the delay associated with CSI (Channel State Information) feedback protocol but also factors associated with implementation, such as processing delay time and distortion of analog devices, degrade the performance because of lowering the channel correlation. Because these implementation constraints depend on each implementation greatly, it is conceivable that transmit beamforming cannot achieve significant gains in some cases depending on the implementation. In this paper, we implement a prototype of transmit beamforming in IEEE802.11n capable of real-time processing using FPGA and evaluate performances in an actual environment, which is an office room. Our measurement results show that our prototype can achieve lower packet error rate compared with the normal IEEE802.11n without transmit beamforming. Moreover, we report behavior synthesis in our implementation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IEEE802.11n / Transmit Beamforming / FPGA / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 155, SR2009-33, pp. 69-75, July 2009. | |
| Paper # | SR2009-33 | |
| Date of Issue | 2009-07-22 (SR) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SR2009-33 |
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| Conference Information | |
| Committee | SR |
| Conference Date | 2009-07-29 - 2009-07-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo institute of technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Exibition, reconfigurable hardware, and 10th anniversary ceremony |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2009-07-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | FPGA Implementation of Transmit Beamforming in IEEE802.11n |
| Sub Title (in English) | |
| Keyword(1) | IEEE802.11n |
| Keyword(2) | Transmit Beamforming |
| Keyword(3) | FPGA |
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| 1st Author's Name | Toshihisa Nabetani |
| 1st Author's Affiliation | Toshiba Corporate (Toshiba) |
| 2nd Author's Name | Yoshimasa Egashira |
| 2nd Author's Affiliation | Toshiba Corporate (Toshiba) |
| 3rd Author's Name | Yoriko Utsunomiya |
| 3rd Author's Affiliation | Toshiba Corporate (Toshiba) |
| 4th Author's Name | Daisuke Takeda |
| 4th Author's Affiliation | Toshiba Corporate (Toshiba) |
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| Speaker | Author-1 |
| Date Time | 2009-07-29 13:00:00 |
| Presentation Time | 150 minutes |
| Registration for | SR |
| Paper # | SR2009-33 |
| Volume (vol) | vol.109 |
| Number (no) | no.155 |
| Page | pp.69-75 |
| #Pages | 7 |
| Date of Issue | 2009-07-22 (SR) |
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