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Paper Abstract and Keywords
Presentation 2012-07-26 13:45
A Study on Semi-Blind Interference Alignment Exploiting Frequency Selectivity of Fading Channels
Manato Takai (Shizuoka Univ.), Koji Ishibashi (Univ. Electoro-Communications), Won-Yong Shin (Dankook Univ.), Akihisa Yokoyama (TOYOTA InfoTechnology Center), Tadahiro Wada (Shizuoka Univ.) WBS2012-23
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we focus on a X channel; a system with two transmitters, two receivers, each equipped with a single antenna, where independent messages need to be conveyed over channels from each transmitter to each receiver. A key concept of that arises in the context of the X channel is interference alignment (IA) that refers to an overlap of signal spaces occupied by undesired interference at each receiver while keeping desired signal spaces distinct. However, all the channel responses and the precise time synchronization are required at the transmitters, which are practically demanding. In this paper, we propose semi-blind IA (S-BIA) scheme exploiting frequency selectivity of wireless channels using orthogonal frequency division multiplexing (OFDM), which only requires channel responses corresponding to each transmitter, and show that it can achieve the same degrees of freedom as conventional IA via computer simulations.
Keyword (in Japanese) (See Japanese page) 
(in English) Interference Alignment (IA) / distributed network / X Channel / frequency selective channel / orthogonal frequency division multiplexing(OFDM) / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 147, WBS2012-23, pp. 73-78, July 2012.
Paper # WBS2012-23 
Date of Issue 2012-07-18 (WBS) 
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 WBS  
Conference Date 2012-07-25 - 2012-07-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2012-07-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Semi-Blind Interference Alignment Exploiting Frequency Selectivity of Fading Channels 
Sub Title (in English)  
Keyword(1) Interference Alignment (IA)  
Keyword(2) distributed network  
Keyword(3) X Channel  
Keyword(4) frequency selective channel  
Keyword(5) orthogonal frequency division multiplexing(OFDM)  
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1st Author's Name Manato Takai  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Koji Ishibashi  
2nd Author's Affiliation The University of Electro-Communications (Univ. Electoro-Communications)
3rd Author's Name Won-Yong Shin  
3rd Author's Affiliation Dankook University (Dankook Univ.)
4th Author's Name Akihisa Yokoyama  
4th Author's Affiliation TOYOTA InfoTechnology Center (TOYOTA InfoTechnology Center)
5th Author's Name Tadahiro Wada  
5th Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2012-07-26 13:45:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # WBS2012-23 
Volume (vol) vol.112 
Number (no) no.147 
Page pp.73-78 
#Pages
Date of Issue 2012-07-18 (WBS) 


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