Paper Abstract and Keywords |
Presentation |
2011-04-22 10:45
An Adaptive Secondary MAC Protocol over 802.11 Wireless LAN with Database Takayuki Suzuki, Takeo Fujii (UEC), Osamu Takyu, Yohtaro Umeda (TUS) SR2011-11 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we have proposed a MAC protocol for secondary system overlaying to the primary wireless LAN (PU: Primary User). This MAC protocol can achieve protecting primary system and improving the throughput of secondary system (SU: Secondary User) . Conventional wireless LAN uses CSMA/CA which can share the same spectrum for several users. However, CSMA/CA has a hidden terminal problem, which causes quality degradation and does not have a function of PU protection. Thus, it is difficult to use conventional CSMA/CA for SU MAC protocol. As related rerated works, high performance sensing for SU which can detect further PU has been considered. Although, a giving protection method by changing CWmin has also been considered, any method cannot protect the PU completely. In this paper, we analyze a hidden terminal problem and reveal mutual interference pattern between PU pair and SU pair. The proposed method collects mutual interference and store at a database. By using the database, the transmit parameters are adaptively changed at SU. As a simulation result, we confirm the effectiveness of the proposed protocol. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Cognitive Radio / MAC Protocol / Access Control / Database / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 13, SR2011-11, pp. 65-70, April 2011. |
Paper # |
SR2011-11 |
Date of Issue |
2011-04-14 (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) |
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SR2011-11 |
Conference Information |
Committee |
SR |
Conference Date |
2011-04-21 - 2011-04-22 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Matsue Terrsa |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Standardization of Software Defined Radio and Cognitive Radio, etc. |
Paper Information |
Registration To |
SR |
Conference Code |
2011-04-SR |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
An Adaptive Secondary MAC Protocol over 802.11 Wireless LAN with Database |
Sub Title (in English) |
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Keyword(1) |
Cognitive Radio |
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MAC Protocol |
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Access Control |
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Database |
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1st Author's Name |
Takayuki Suzuki |
1st Author's Affiliation |
The University of Electro-Communications (UEC) |
2nd Author's Name |
Takeo Fujii |
2nd Author's Affiliation |
The University of Electro-Communications (UEC) |
3rd Author's Name |
Osamu Takyu |
3rd Author's Affiliation |
Tokyo University of Science (TUS) |
4th Author's Name |
Yohtaro Umeda |
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Tokyo University of Science (TUS) |
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Speaker |
Author-1 |
Date Time |
2011-04-22 10:45:00 |
Presentation Time |
25 minutes |
Registration for |
SR |
Paper # |
SR2011-11 |
Volume (vol) |
vol.111 |
Number (no) |
no.13 |
Page |
pp.65-70 |
#Pages |
6 |
Date of Issue |
2011-04-14 (SR) |
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