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Paper Abstract and Keywords
Presentation 2014-03-07 13:50
Throughput Performance of Adaptive Frequency Offset Selection for Amplify-and-Forward Relay
Takayuki Shiba, Yukitoshi Sanada (Keio Univ.) CAS2013-118 SIP2013-164 CS2013-131
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes an adaptive frequency offset scheme in a amplify-and-forward (AF) relay station (RS).
When the RSs are at a cell edge, frequency resources are partially assigned for a base station (BS) to avoid inter-cell interference.
On the other hand, the RS is expected to use a higher frequency band for transmission in the fourth generation mobile communication system.
The whole frequency band can be used in the transmission between the RS and a mobile station (MS) while the RS uses only the restricted bandwidth in the low frequency band.
In the proposed AF relay scheme, the frequency of the signal from the RS is shifted adaptively in accordance with the frequency response of the channel between the RS and the MS.
In this scheme, the relay transmission is assumed to use a wider bandwidth between the RS and the MS than that between the BS and the RS.
By making use of the better frequency response between the RS and the BS owing to the adaptive frequency offset scheme the total throughput of the cell improves.
It is shown with numerical results obtained through computer simulation that for a two user case the proposed scheme improves the total throughput by about 1.2 to 1.3 times with proportional fairness scheduling especially at a low $E_{b}/N_{0}$ condition.
Keyword (in Japanese) (See Japanese page) 
(in English) 4G / Amplify-and-Forward Relaying / Heterogeneous Network / FFR / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 465, CS2013-131, pp. 163-168, March 2014.
Paper # CS2013-131 
Date of Issue 2014-02-27 (CAS, SIP, CS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CAS2013-118 SIP2013-164 CS2013-131

Conference Information
Committee CS CAS SIP  
Conference Date 2014-03-06 - 2014-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka City University Media Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Processor, Signal Processing for Communication, Wireless LAN/PAN, etc. 
Paper Information
Registration To CS 
Conference Code 2014-03-CS-CAS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Throughput Performance of Adaptive Frequency Offset Selection for Amplify-and-Forward Relay 
Sub Title (in English)  
Keyword(1) 4G  
Keyword(2) Amplify-and-Forward Relaying  
Keyword(3) Heterogeneous Network  
Keyword(4) FFR  
1st Author's Name Takayuki Shiba  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Yukitoshi Sanada  
2nd Author's Affiliation Keio University (Keio Univ.)
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Date Time 2014-03-07 13:50:00 
Presentation Time 25 
Registration for CS 
Paper # IEICE-CAS2013-118,IEICE-SIP2013-164,IEICE-CS2013-131 
Volume (vol) IEICE-113 
Number (no) no.463(CAS), no.464(SIP), no.465(CS) 
Page pp.163-168 
#Pages IEICE-6 
Date of Issue IEICE-CAS-2014-02-27,IEICE-SIP-2014-02-27,IEICE-CS-2014-02-27 

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