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| Presentation | 2014-06-17 10:53 Inversely Proportional Setting of Transmission Power and Carrier Sense Threshold for WLAN Throughput Improvement Fumiya Shiotani, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Riichi Kudo, Koichi Ishihara (NTT)  RCS2014-45 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Inserting attenuators between transceivers and antennas is proposed to improve spacial channel reuse in carrier sense multiple access with collision avoidance (CSMA/CA)-based wireless LANs. Using attenuators enables the access points (APs) or stations to equivalently decrease the powers of transmission signals and received signals. The decrease of the received signals is equivalent to the increase of the carrier sense threshold at the transceiver. This inversely proportional setting of transmission power and carrier sense threshold provides a novel solution for the unfairness problem caused by the difference in transmission power. The aggregated spectral efficiency of two transmitter-receiver pairs is formulated and a sufficient condition for achieving higher aggregated spectral efficiency compared to the spectral efficiency without using attenuators is derived. In addition, the enhancement of aggregated spectral efficiency is numerically evaluated. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | CSMA/CA / IEEE 802.11 / attenuator / transmission power control / carrier sense threshold / channel reuse / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 86, RCS2014-45, pp. 77-80, June 2014. | |
| Paper # | RCS2014-45 | |
| Date of Issue | 2014-06-10 (RCS) | |
| 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 | RCS2014-45 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2014-06-17 - 2014-06-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa-ken Seinenkaikan (Naha) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2014-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Inversely Proportional Setting of Transmission Power and Carrier Sense Threshold for WLAN Throughput Improvement |
| Sub Title (in English) | |
| Keyword(1) | CSMA/CA |
| Keyword(2) | IEEE 802.11 |
| Keyword(3) | attenuator |
| Keyword(4) | transmission power control |
| Keyword(5) | carrier sense threshold |
| Keyword(6) | channel reuse |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Fumiya Shiotani |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 2nd Author's Name | Koji Yamamoto |
| 2nd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 3rd Author's Name | Takayuki Nishio |
| 3rd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 4th Author's Name | Masahiro Morikura |
| 4th Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 5th Author's Name | Riichi Kudo |
| 5th Author's Affiliation | NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) |
| 6th Author's Name | Koichi Ishihara |
| 6th Author's Affiliation | NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) |
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| Speaker | Author-1 |
| Date Time | 2014-06-17 10:53:00 |
| Presentation Time | 8 minutes |
| Registration for | RCS |
| Paper # | RCS2014-45 |
| Volume (vol) | vol.114 |
| Number (no) | no.86 |
| Page | pp.77-80 |
| #Pages | 4 |
| Date of Issue | 2014-06-10 (RCS) |
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