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Paper Abstract and Keywords
Presentation 2012-12-13 09:40
Investigation on CQI Definition for CoMP in LTE-Advanced Downlink
Jing Wang, Xiang Yun (DOCOMO Beijing Lab.), Satoshi Nagata (NTT DOCOMO), Lan Chen (DOCOMO Beijing Lab.) RCS2012-186
Abstract (in Japanese) (See Japanese page) 
(in English) In order to support dynamic switching among different coordinated multi-point (CoMP) schemes, the eNodeB needs to have channel quality indicator (CQI) information for different schemes to perform scheduling. The full feedback scheme can provide accurate CQI for different CoMP schemes but it comes at the cost of a large feedback overhead. A new CQI definition of relative interference was proposed to reduce the feedback overhead while enabling the eNodeB to obtain various types of CQI for different CoMP schemes through CQI updates. In this paper, we compare the proposed scheme with other possible CQI definitions, and clarify their performance impact under different traffic loads. Evaluation results show that the proposed CQI definition of relative interference works effectively under different traffic loads for different CoMP schemes.
Keyword (in Japanese) (See Japanese page) 
(in English) LTE-Advanced / coordinated multi-point transmission / channel quality indicator / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 351, RCS2012-186, pp. 15-20, Dec. 2012.
Paper # RCS2012-186 
Date of Issue 2012-12-06 (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 NS RCS  
Conference Date 2012-12-13 - 2012-12-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To RCS 
Conference Code 2012-12-NS-RCS 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation on CQI Definition for CoMP in LTE-Advanced Downlink 
Sub Title (in English)  
Keyword(1) LTE-Advanced  
Keyword(2) coordinated multi-point transmission  
Keyword(3) channel quality indicator  
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1st Author's Name Jing Wang  
1st Author's Affiliation DOCOMO Beijing Laboratory (DOCOMO Beijing Lab.)
2nd Author's Name Xiang Yun  
2nd Author's Affiliation DOCOMO Beijing Laboratory (DOCOMO Beijing Lab.)
3rd Author's Name Satoshi Nagata  
3rd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
4th Author's Name Lan Chen  
4th Author's Affiliation DOCOMO Beijing Laboratory (DOCOMO Beijing Lab.)
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Speaker Author-3 
Date Time 2012-12-13 09:40:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2012-186 
Volume (vol) vol.112 
Number (no) no.351 
Page pp.15-20 
#Pages 6 
Date of Issue 2012-12-06 (RCS) 

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