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Paper Abstract and Keywords
Presentation 2008-07-28 10:30
Transmission Scheduling in CDMA-based Inter-vehicle Communication
Mehdad N. Shirazi, Oyunchimeg Shagdar, Takashi Ohyama, Suhua Tang, Ryutaro Suzuki, Sadao Obana (ATR) ITS2008-9
Abstract (in Japanese) (See Japanese page) 
(in English) The availability of global position system technology, rapid evolution of wireless data communication technologies and advances in mobile ad hoc networking create ample opportunities for supporting delay critical vehicular safety applications. Recently, delay critical nature of vehicular safety applications spurred interest in CDMA-based vehicular communications [3] [4] where the focus has been on mitigating interference induced by concurrent channel access. Although, the previous work takes into account the effect of the frequency channel and code assignment on SINR of a received packet, it neglects another factor, which is the relative distance of the transmitting, interfering, and receiving terminals. In this paper, we focus on a typical car accident scenario [5] and argue on the need for multihop packet forwarding, a topology-aware channel assignment scheme, and an area-based packet forwarding scheme in the context of MMSA inter-vehicle communication system. We then propose a packet transmission scheduling scheme which largely alleviates near-far problem. Simulation results are presented to confirm performance improvements achieved by the proposed scheme.
Keyword (in Japanese) (See Japanese page) 
(in English) Inter-vehicle networks / CDMA / Cooperative collision warning / Message transmission scheduling / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 171, ITS2008-9, pp. 7-12, July 2008.
Paper # ITS2008-9 
Date of Issue 2008-07-21 (ITS) 
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 ITS  
Conference Date 2008-07-28 - 2008-07-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Positioning Systems for ITS, etc. 
Paper Information
Registration To ITS 
Conference Code 2008-07-ITS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transmission Scheduling in CDMA-based Inter-vehicle Communication 
Sub Title (in English)  
Keyword(1) Inter-vehicle networks  
Keyword(2) CDMA  
Keyword(3) Cooperative collision warning  
Keyword(4) Message transmission scheduling  
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1st Author's Name Mehdad N. Shirazi  
1st Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
2nd Author's Name Oyunchimeg Shagdar  
2nd Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
3rd Author's Name Takashi Ohyama  
3rd Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
4th Author's Name Suhua Tang  
4th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
5th Author's Name Ryutaro Suzuki  
5th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
6th Author's Name Sadao Obana  
6th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
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Speaker Author-1 
Date Time 2008-07-28 10:30:00 
Presentation Time 30 minutes 
Registration for ITS 
Paper # ITS2008-9 
Volume (vol) vol.108 
Number (no) no.171 
Page pp.7-12 
#Pages 6 
Date of Issue 2008-07-21 (ITS) 

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