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Paper Abstract and Keywords
Presentation 2012-10-11 12:50
Time slot adding assignment in IEEE 802.16j wireless relay networks
Tomoya Kitayama, Go Hasegawa, Yoshiaki Taniguchi, Hirotaka Nakano (Osaka Univ) NS2012-88
Abstract (in Japanese) (See Japanese page) 
(in English) Relay networks based on IEEE 802.16j adopt the TDMA, where time slots are assigned to communication links in the network as transmission opportunities. Furthermore, when we employ the adaptive modulation and coding for data transmission on wireless links, the bitrate in the transmission is affected by Signal to Interference and Noise Ratio (SINR). Therefore, the algorithms which assign time slots to links in the network are important to enhance the performance of relay networks. When we employ the relay network as an access method to the backhaul network, the bottleneck link is likely to be located at links near the gateway node, that dominates the performance of the relay network.
In this report, we propose the time slot adding algorithm to improve bottleneck link throughput in IEEE 802.16j relay networks. Although we employ an existing method for the initial assignment of time slots to links in the network, we introduce novel algorithms to add more time slots to the bottleneck link in the network. Through performance evaluations, we confirm that the data transfer throughput is enhanced by up to around 78\% by using the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) IEEE 802.16j / TDMA / time slot assignment / bottleneck / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 231, NS2012-88, pp. 47-52, Oct. 2012.
Paper # NS2012-88 
Date of Issue 2012-10-04 (NS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 NS  
Conference Date 2012-10-11 - 2012-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Architecture (Overlay, P2P, Ubiquitous Network, Active Network, NGN, New Generation Network), Grid 
Paper Information
Registration To NS 
Conference Code 2012-10-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Time slot adding assignment in IEEE 802.16j wireless relay networks 
Sub Title (in English)  
Keyword(1) IEEE 802.16j  
Keyword(2) TDMA  
Keyword(3) time slot assignment  
Keyword(4) bottleneck  
1st Author's Name Tomoya Kitayama  
1st Author's Affiliation Osaka University (Osaka Univ)
2nd Author's Name Go Hasegawa  
2nd Author's Affiliation Osaka University (Osaka Univ)
3rd Author's Name Yoshiaki Taniguchi  
3rd Author's Affiliation Osaka University (Osaka Univ)
4th Author's Name Hirotaka Nakano  
4th Author's Affiliation Osaka University (Osaka Univ)
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Speaker Author-1 
Date Time 2012-10-11 12:50:00 
Presentation Time 70 minutes 
Registration for NS 
Paper # NS2012-88 
Volume (vol) vol.112 
Number (no) no.231 
Page pp.47-52 
Date of Issue 2012-10-04 (NS) 

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