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Paper Abstract and Keywords
Presentation 2010-03-05 10:40
Evaluation of packet transmission latency in IEEE 802.16j relay networks
Rintaro Ishii, Go Hasegawa, Yoshiaki Taniguchi, Hirotaka Nakano (Osaka Univ.) IN2009-177
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed an assignment algorithm of time slots for wireless links to reduce the transmission latency between user stations and gateway nodes in IEEE 802.16j wireless relay networks.
The proposed algorithm is based on the existing method that aims better network throughput
and small frame length, and it changes the order
of time slot assignment to decrease the transmission latency without increasing the frame length.
We have evaluated the performance of the proposed method in terms of scheduling delay which is determined by the result of time slot assignment.
However, we did not examine the proposed method in high-load situations where queueing delay can not be ignored. Furthermore, the previous work only focused on the downward transmissions.
In this report, we evaluate the performance of the proposed method, focusing on the effect of the packet generation rate of the network.
We also evaluate the latency in both of downward and upward transmissions.
Performance evaluations are conducted through both of simulation experiments and numerical calculation and we confirm that the proposed algorithm can decrease the transmission latency by up to 25% in downward transmission and up to 20% in upward transmission compared with the random assignment algorithm in IEEE 802.16j in case of high traffic load.
Keyword (in Japanese) (See Japanese page) 
(in English) IEEE 802.16j / relay network / time slot assignment / transmission latency / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 449, IN2009-177, pp. 199-204, March 2010.
Paper # IN2009-177 
Date of Issue 2010-02-25 (IN) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 IN2009-177

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 IN 
Conference Code 2010-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of packet transmission latency in IEEE 802.16j relay networks 
Sub Title (in English)  
Keyword(1) IEEE 802.16j  
Keyword(2) relay network  
Keyword(3) time slot assignment  
Keyword(4) transmission latency  
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1st Author's Name Rintaro Ishii  
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 2010-03-05 10:40:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2009-177 
Volume (vol) vol.109 
Number (no) no.449 
Page pp.199-204 
#Pages
Date of Issue 2010-02-25 (IN) 


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