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Paper Abstract and Keywords
Presentation 2016-03-11 11:25
Experimental Study on Linear Array Switched Antenna for WiMAX
Julian Webber, Satoshi Tsukamoto, Takahiro Maeda, Tomoaki Kumagai (ATR), Shinichiro Yamamoto, Satoru Aikawa (Hyogo Univ.) AP2015-220
Abstract (in Japanese) (See Japanese page) 
(in English) The communication channel between a base-station transmitter and train mounted receiver suffers from rapid and deep fading due to the large Doppler spread at high speeds. In order to reduce this fading a linear array antenna has been proposed whose elements switch in the reverse direction of train motion. By matching the switching frequency to the trains speed the channel on the selected antennas are momentarily fixed to the same ground-point. A software model of the switching process is made in order to study the time-varying phase response. A scale-model experiment is conducted consisting of a linear track with train mounted array and, by appropriate scaling of the Tx symbol rate, virtual fading rates up to 360 km/h are created. A software simulation based on the WiMAX physical layer parameters is developed and performance is shown to improve by up to 1.7 dB at bit error rate (BER) 5E-3 at 360 km/h.
Keyword (in Japanese) (See Japanese page) 
(in English) Linear array antenna / Fast fading / Antenna switching / OFDM / Experiment / WiMAX / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 506, AP2015-220, pp. 91-95, March 2016.
Paper # AP2015-220 
Date of Issue 2016-03-03 (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)
Download PDF AP2015-220

Conference Information
Committee AP  
Conference Date 2016-03-10 - 2016-03-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Isawa Onsen (Kanpo no Yado) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antenna and Propagation 
Paper Information
Registration To AP 
Conference Code 2016-03-AP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Study on Linear Array Switched Antenna for WiMAX 
Sub Title (in English)  
Keyword(1) Linear array antenna  
Keyword(2) Fast fading  
Keyword(3) Antenna switching  
Keyword(4) OFDM  
Keyword(5) Experiment  
Keyword(6) WiMAX  
Keyword(7)  
Keyword(8)  
1st Author's Name Julian Webber  
1st Author's Affiliation Advanced Telecommunications Research International (ATR)
2nd Author's Name Satoshi Tsukamoto  
2nd Author's Affiliation Advanced Telecommunications Research International (ATR)
3rd Author's Name Takahiro Maeda  
3rd Author's Affiliation Advanced Telecommunications Research International (ATR)
4th Author's Name Tomoaki Kumagai  
4th Author's Affiliation Advanced Telecommunications Research International (ATR)
5th Author's Name Shinichiro Yamamoto  
5th Author's Affiliation University of Hyogo (Hyogo Univ.)
6th Author's Name Satoru Aikawa  
6th Author's Affiliation University of Hyogo (Hyogo Univ.)
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Speaker Author-1 
Date Time 2016-03-11 11:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2015-220 
Volume (vol) vol.115 
Number (no) no.506 
Page pp.91-95 
#Pages 5 
Date of Issue 2016-03-03 (AP) 

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