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Paper Abstract and Keywords
Presentation 2014-03-03 16:10
Proposal of Scheduling Algorithm for Carrier Aggregation to Improve User Throughput Fairness in Heterogeneous Network
Daisuke Ohta, Takahiro Nobukiyo (NEC) RCS2013-331
Abstract (in Japanese) (See Japanese page) 
(in English) In order to cope with the increasing mobile traffic, Heterogeneous Network (HetNet) is being deployed by overlaying small cells on top of a macro cell network. In LTE-Advanced, carrier aggregation (CA) was standardized as a technology to realize wideband transmission with multiple component carriers (CC). Joint-CC proportional fairness (PF) scheduling algorithm was proposed for CA as an enhancement to conventional PF scheduling, which achieved high capacity and the fairness of user throughput. In conventional PF scheduler, the scheduling metric was calculated by the comparison between an expected instantaneous transmission rate and an effective transmission rate per CC. On the other hand, in Joint-CC PF scheduling algorithm, the effective transmission rate between CCs was calculated per all CCs. When CA is introduced, the number of available CCs is different among UEs. Joint-CC PF scheduling does not considere of the difference of the traffic load between CCs and the allocatable bandwidth per UEs and it did not achieve the fairness of user throughput. In this paper, we propose a scheduling algorithm to improve user throughput fairness with the scheduling metric considering the difference of the traffic load between CCs and the allocatable bandwidth per UEs. From the simulation results, in a macro eNB and a remote radio head (RRH) environment, the proposed algorithm improved the lower 5% of user throughput by up to 35%.
Keyword (in Japanese) (See Japanese page) 
(in English) LTE-Advanced / Heterogeneous Network / Carrier Aggregation / Proportional Fairness / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 456, RCS2013-331, pp. 151-156, March 2014.
Paper # RCS2013-331 
Date of Issue 2014-02-24 (RCS) 
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 RCS SR SRW  
Conference Date 2014-03-03 - 2014-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Waseda Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2014-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of Scheduling Algorithm for Carrier Aggregation to Improve User Throughput Fairness in Heterogeneous Network 
Sub Title (in English)  
Keyword(1) LTE-Advanced  
Keyword(2) Heterogeneous Network  
Keyword(3) Carrier Aggregation  
Keyword(4) Proportional Fairness  
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1st Author's Name Daisuke Ohta  
1st Author's Affiliation NEC Corporation (NEC)
2nd Author's Name Takahiro Nobukiyo  
2nd Author's Affiliation NEC Corporation (NEC)
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Speaker Author-1 
Date Time 2014-03-03 16:10:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2013-331 
Volume (vol) vol.113 
Number (no) no.456 
Page pp.151-156 
#Pages 6 
Date of Issue 2014-02-24 (RCS) 

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