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Paper Abstract and Keywords
Presentation 2009-10-16 11:35
An access control scheme for passenger wireless communication systems considering the passing of an opposite train
Masahiro Yamamoto, Takaya Yamazato, Masaaki Katayama (Nagoya Univ.) RCS2009-125
Abstract (in Japanese) (See Japanese page) 
(in English) This manuscript discusses on a wireless cellular communication system
for railroad passengers, in which base stations are placed along the
railroad. In this system, all users or passengers are on trains. Thus
there is high concentration in user distribution, and a group of the
users on a train move to the same direction with the same speed. In such
a system, when two opposite trains enter in the same cell before they
pass each other, the number of users in the cell abruptly increases, and
forced terminations of communication, i.e. call dropping, may occur due
to the concentration of traffic. This paper proposes access control
methods that mitigate the probability of the dropping, by limiting the
number of channels allowed to use on each train dynamically or
statically before the two trains enter the same cell. As a result, it is
shown that the probability of the forced termination of an existing call
can be decreased with the cost of increase in blocking probability. It
is also confirmed that the dynamic access control method can inhibit
increasing of the rejection of newly arrived calls compared to the
static access control method when the control duration is enough large.
In conclusion, the proposed methods provide lower dropping probability
than the conventional (no-control) system, under the same blocking
probability.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless LAN / Internet on Train / Cellular Network / Access Control / Channel Assignment / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 229, RCS2009-125, pp. 89-93, Oct. 2009.
Paper # RCS2009-125 
Date of Issue 2009-10-08 (RCS) 
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)
Download PDF RCS2009-125

Conference Information
Committee RCS  
Conference Date 2009-10-15 - 2009-10-16 
Place (in Japanese) (See Japanese page) 
Place (in English) ATR 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing and Transceiver Technologies on High-speed Wireless Packet Communication, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2009-10-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An access control scheme for passenger wireless communication systems considering the passing of an opposite train 
Sub Title (in English)  
Keyword(1) Wireless LAN  
Keyword(2) Internet on Train  
Keyword(3) Cellular Network  
Keyword(4) Access Control  
Keyword(5) Channel Assignment  
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Keyword(8)  
1st Author's Name Masahiro Yamamoto  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Takaya Yamazato  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Masaaki Katayama  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker
Date Time 2009-10-16 11:35:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2009-125 
Volume (vol) IEICE-109 
Number (no) no.229 
Page pp.89-93 
#Pages IEICE-5 
Date of Issue IEICE-RCS-2009-10-08 


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