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Paper Abstract and Keywords
Presentation 2015-09-01 14:30
Performance evaluation of channel access acquisition control in unlicensed band for future mobile communication system
B. A. Hirantha Sithira Abeysekera, Riichi Kudo, Munehiro Matsui, Yasushi Takatori, Takeo Ichikawa, Masato Mizoguchi (NTT) CQ2015-52
Abstract (in Japanese) (See Japanese page) 
(in English) Interworking among heterogeneous wireless networks across licensed and unlicensed bands has gained much attention to support the surge in mobile traffic. In unlicensed bands, the dominant wireless network application is wireless LAN (LAN) where frequency resources are shared based on carrier sense multiple access with collision avoidance (CSMA/CA) mechanism. When the mobile traffic starts to overwhelm the wireless resources, the throughput of some users will be significantly degraded by the hidden and exposed terminal problems created by radio environment asymmetry around the transmitter and the receiver. In order to alleviate this problem, we present a channel access acquisition control scheme for wireless LANs with the assist of licensed band. In this paper, we evaluate our proposed scheme through computer simulations, and show that our scheme improves the user throughput by twice even when there exist uncontrollable APs.
Keyword (in Japanese) (See Japanese page) 
(in English) Future radio access / Phantom cell concept / Offloading / CSMA/CA / Hidden/exposed terminal / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 206, CQ2015-52, pp. 71-76, Sept. 2015.
Paper # CQ2015-52 
Date of Issue 2015-08-25 (CQ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 CQ  
Conference Date 2015-09-01 - 2015-09-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CQ 
Conference Code 2015-09-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance evaluation of channel access acquisition control in unlicensed band for future mobile communication system 
Sub Title (in English)  
Keyword(1) Future radio access  
Keyword(2) Phantom cell concept  
Keyword(3) Offloading  
Keyword(4) CSMA/CA  
Keyword(5) Hidden/exposed terminal  
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Keyword(7)  
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1st Author's Name B. A. Hirantha Sithira Abeysekera  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Riichi Kudo  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Munehiro Matsui  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Yasushi Takatori  
4th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
5th Author's Name Takeo Ichikawa  
5th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
6th Author's Name Masato Mizoguchi  
6th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2015-09-01 14:30:00 
Presentation Time 20 minutes 
Registration for CQ 
Paper # CQ2015-52 
Volume (vol) vol.115 
Number (no) no.206 
Page pp.71-76 
#Pages
Date of Issue 2015-08-25 (CQ) 


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