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Paper Abstract and Keywords
Presentation 2018-08-10 16:20
Experimental Verification of dynamic carrier allocation using SC-FDMA in Autonomous Bandwidth Allocation FDMA
Daisuke Goto, Fumihiro Yamashita (NTT) SAT2018-45
Abstract (in Japanese) (See Japanese page) 
(in English) Autonomous Bandwidth Allocation FDMA (ABA-FDMA) is proposed for dynamically sharing unused bandwidth of satellite transponders among terminal stations in order to utilize frequency efficiency. This system is characterized in that each terminal station autonomously occupies the unused bandwidth of the satellite repeater without the complicated central control. In this technique, a transmission scheme for dynamically carrier allocation is necessary. In this paper, we describe that we have developed a prototype of a modulation / demodulation device that dynamically changes subcarrier ar-rangement using SC-FDMA in order to verify the quality of the proposed scheme. This system can flexibly change the number of subcarriers with a sampling frequency of 46.08 MHz and a range of 512 point FFT. As a result of the verifi-cation, it was confirmed that the dynamic transition of throughput was conducted without bit error while changing the subcarrier arrangement. As for BER characteristics, it was found out that the measured results of variable subcarriers were shown approximately 1dB degradation against the fixed ones.
Keyword (in Japanese) (See Japanese page) 
(in English) ABA-FDMA / SC-FDMA / Fixed subcarrier / Variable subcarrier / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 176, SAT2018-45, pp. 91-96, Aug. 2018.
Paper # SAT2018-45 
Date of Issue 2018-08-02 (SAT) 
ISSN 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 SAT2018-45

Conference Information
Committee SAT RCS  
Conference Date 2018-08-09 - 2018-08-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Iwate University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communications, etc. 
Paper Information
Registration To SAT 
Conference Code 2018-08-SAT-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Verification of dynamic carrier allocation using SC-FDMA in Autonomous Bandwidth Allocation FDMA 
Sub Title (in English)  
Keyword(1) ABA-FDMA  
Keyword(2) SC-FDMA  
Keyword(3) Fixed subcarrier  
Keyword(4) Variable subcarrier  
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1st Author's Name Daisuke Goto  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Fumihiro Yamashita  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2018-08-10 16:20:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2018-45 
Volume (vol) vol.118 
Number (no) no.176 
Page pp.91-96 
#Pages 6 
Date of Issue 2018-08-02 (SAT) 

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