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Paper Abstract and Keywords
Presentation 2010-10-14 10:50
Spatial Domain Resource Sharing for Overlapping Multi Cells -- System Capacity evaluation in Next Generation Wireless LAN --
Tomoki Murakami, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT) AP2010-74
Abstract (in Japanese) (See Japanese page) 
(in English) Given the increase of wireless devices in WLAN and similar systems and the shortage of available frequency channels, the need to address inter-cell-interference (ICI) is growing more urgent. ICI causes overlapping cells that adjacent cells using same frequency channel communicate, and ICI causes deterioration of spectrum efficiency per cell. As the problems of overlapping cells, we have researched, spatial domain resource sharing, this simple method of suppressing ICI using transmit beamforming in environment which two cells overlap. In this paper, we evaluate system capacity of its performance using frequency channel expected to establish with IEEE802.11ac in environment with two or more cells overlap like an apartment environment. This performance shows that the proposed method can increase the system capacity compared to conventional method. In addition, we confirmed that adjustment area of each frequency channel changes depending on bandwidth of frequency channel and cell overcrowdedness rate.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / overlapping cells / inter cell interference / spatial domain resource / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 223, AP2010-74, pp. 1-6, Oct. 2010.
Paper # AP2010-74 
Date of Issue 2010-10-07 (AP) 
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 AP  
Conference Date 2010-10-14 - 2010-10-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Iwate Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP 
Paper Information
Registration To AP 
Conference Code 2010-10-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spatial Domain Resource Sharing for Overlapping Multi Cells 
Sub Title (in English) System Capacity evaluation in Next Generation Wireless LAN 
Keyword(1) MIMO  
Keyword(2) overlapping cells  
Keyword(3) inter cell interference  
Keyword(4) spatial domain resource  
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1st Author's Name Tomoki Murakami  
1st Author's Affiliation NTT Network Innovation Laboratories (NTT)
2nd Author's Name Riichi Kudo  
2nd Author's Affiliation NTT Network Innovation Laboratories (NTT)
3rd Author's Name Takeo Ichikawa  
3rd Author's Affiliation NTT Network Innovation Laboratories (NTT)
4th Author's Name Masato Mizoguchi  
4th Author's Affiliation NTT Network Innovation Laboratories (NTT)
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Speaker Author-1 
Date Time 2010-10-14 10:50:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2010-74 
Volume (vol) vol.110 
Number (no) no.223 
Page pp.1-6 
#Pages 6 
Date of Issue 2010-10-07 (AP) 

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