Paper Abstract and Keywords |
Presentation |
2007-01-25 16:10
Channel Quality Improvement Method based on Relative Mobility Speed in High-speed Mobile Environment Takayuki Yamada, Ryoichi Shinkuma, Tatsuro Takahashi (Kyoto Univ.) MoMuC2006-70 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The demand for multimedia services and Internet access in vehicles has been growing with the spread of intelligent transport systems (ITS).
To access the infrastructure network from vehicles, a wireless road-vehicle communication system is necessary.
In conventional road-vehicle communication systems, user terminals in the vehicles have to directly connect to wireless access points (APs).
However, the speed of vehicles is so fast that the channel condition between the terminals and the APs constantly changes due to changing path-loss and time-varying fading.
In this paper, we used an inter-vehicle packet relay technique to improve channel quality in road-vehicle communication systems.
If a terminal can send data via other vehicles moving at lower speed, the relative speed will decrease, which suppresses the dynamic range of path loss and deterioration by fading.
We evaluated this method using numerical analysis and computer simulation to validate the proposed method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
ITS / road-vehicle communication / inter-vehicle communication / relative speed / Doppler shift / / / |
Reference Info. |
IEICE Tech. Rep., vol. 106, Jan. 2007. |
Paper # |
|
Date of Issue |
2007-01-18 (MoMuC) |
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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MoMuC2006-70 |
Conference Information |
Committee |
MoNA |
Conference Date |
2007-01-25 - 2007-01-26 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
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Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Multimedia for 4G, Mobile Communication Quality, Mobile Content Management, Mobile Security |
Paper Information |
Registration To |
MoNA |
Conference Code |
2007-01-MoMuC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Channel Quality Improvement Method based on Relative Mobility Speed in High-speed Mobile Environment |
Sub Title (in English) |
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Keyword(1) |
ITS |
Keyword(2) |
road-vehicle communication |
Keyword(3) |
inter-vehicle communication |
Keyword(4) |
relative speed |
Keyword(5) |
Doppler shift |
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1st Author's Name |
Takayuki Yamada |
1st Author's Affiliation |
Kyoto University (Kyoto Univ.) |
2nd Author's Name |
Ryoichi Shinkuma |
2nd Author's Affiliation |
Kyoto University (Kyoto Univ.) |
3rd Author's Name |
Tatsuro Takahashi |
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Kyoto University (Kyoto Univ.) |
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Speaker |
Author-1 |
Date Time |
2007-01-25 16:10:00 |
Presentation Time |
25 minutes |
Registration for |
MoNA |
Paper # |
MoMuC2006-70 |
Volume (vol) |
vol.106 |
Number (no) |
no.498 |
Page |
pp.53-56 |
#Pages |
4 |
Date of Issue |
2007-01-18 (MoMuC) |
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