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| Presentation | 2010-03-04 11:10 An Adaptive Carrier Sensing for Addressing Deafness and Hidden Terminal Problems in Directional MAC Protocol Yuichi Miyaji, Hideyuki Uehara, Takashi Ohira (Toyohashi Univ. of Tech.)  NS2009-175 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The use of smart antennas for the efficient utilization of wireless resources has attracted much attention in ad hoc networks. A smart antenna can control the beam pattern electronically to improve the space utilization and extend the communication range. However, a node makes a false judgment in a physical carrier sense because the radiated power of smart antennas is ununiform spatially. The deafness and the hidden terminal problem which are the issues of directional MAC protocol occur because of the false judgment in the physical carrier sense. In this paper, we propose adaptive control methods of the carrier sense threshold to solve the false judgment in the directional MAC protocol. This methods decrease the carrier sense threshold depending on a retransmission caused by each problem. Evaluating the performance of proposals by the computer simulation we show that the proposed methods avoid the false judgment and improve the total throughput. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Smart Antennas / Medium Access Control / Physical Carrier Sense / Deafness Problem / Hidden Terminal Problem / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 448, NS2009-175, pp. 77-82, March 2010. | |
| Paper # | NS2009-175 | |
| Date of Issue | 2010-02-25 (NS) | |
| 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 | NS2009-175 |
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| Conference Information | |
| Committee | NS IN |
| Conference Date | 2010-03-04 - 2010-03-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Miyazaki Phoenix Seagaia Resort (Miyazaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General, NS+IN workshop (March 4-5) |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2010-03-NS-IN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Adaptive Carrier Sensing for Addressing Deafness and Hidden Terminal Problems in Directional MAC Protocol |
| Sub Title (in English) | |
| Keyword(1) | Smart Antennas |
| Keyword(2) | Medium Access Control |
| Keyword(3) | Physical Carrier Sense |
| Keyword(4) | Deafness Problem |
| Keyword(5) | Hidden Terminal Problem |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuichi Miyaji |
| 1st Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
| 2nd Author's Name | Hideyuki Uehara |
| 2nd Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
| 3rd Author's Name | Takashi Ohira |
| 3rd Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2010-03-04 11:10:00 |
| Presentation Time | 20 minutes |
| Registration for | NS |
| Paper # | NS2009-175 |
| Volume (vol) | vol.109 |
| Number (no) | no.448 |
| Page | pp.77-82 |
| #Pages | 6 |
| Date of Issue | 2010-02-25 (NS) |
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