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Paper Abstract and Keywords
Presentation 2012-01-19 09:25
An adaptive control scheme of smart antenna in ad hoc networks
Yuta Aoki (Shizuoka Univ.), Masaki Bandai (Sophia Univ.), Takashi Watanabe (Shizuoka Univ.) AN2011-56
Abstract (in Japanese) (See Japanese page) 
(in English) Smart antennas provide electronically control of beam direction depending on the situation and exchange data with another node in a given direction. It can prevent the interference and improve the spatial utilization of wireless channel. Moreover, smart antennas can extend communication range, so as to reduce number of hops. However, inter-flow interference leads to a decrease in simultaneous communication and intra-flow interference incur the directional hidden terminal and deafness problems. Therefore, to design a directional MAC protocol to make use of smart antennas, challenges are controlling directivity, transmission power and transmission rate between communication nodes. This paper discusses controlling the directivity of smart antenna to enhance the network performance. At first, we evaluate the impact of the directivities to the performance. According to the results, we propose a MAC protocol called DMAC/BA which controls transmission and receiving directivities by adaptively controlling the beam width depending on the relative locations of the peer node and the traffic of the other flows. Simulation results show that the proposed method can achieve higher network throughput in mobile and multi-hop environment.
Keyword (in Japanese) (See Japanese page) 
(in English) Ad hoc networks / Smart antennas / Beam forming / MAC protocol / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 385, AN2011-56, pp. 7-12, Jan. 2012.
Paper # AN2011-56 
Date of Issue 2012-01-12 (AN) 
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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Conference Information
Committee MoNA AN USN  
Conference Date 2012-01-19 - 2012-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Todaya (Toba) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AN 
Conference Code 2012-01-MoMuC-AN-USN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An adaptive control scheme of smart antenna in ad hoc networks 
Sub Title (in English)  
Keyword(1) Ad hoc networks  
Keyword(2) Smart antennas  
Keyword(3) Beam forming  
Keyword(4) MAC protocol  
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1st Author's Name Yuta Aoki  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Masaki Bandai  
2nd Author's Affiliation Sophia University (Sophia Univ.)
3rd Author's Name Takashi Watanabe  
3rd Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2012-01-19 09:25:00 
Presentation Time 25 minutes 
Registration for AN 
Paper # AN2011-56 
Volume (vol) vol.111 
Number (no) no.385 
Page pp.7-12 
#Pages 6 
Date of Issue 2012-01-12 (AN) 

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