Paper Abstract and Keywords |
Presentation |
2010-03-03 16:40
Throughput Evaluation for the Overhead of Sounding Reference Signals in LTE-Advanced Uplink Yosuke Akimoto, Toshizo Nogami, Kazuyuki Shimezawa, Masayuki Enomoto, Hiroshi Katsuragawa, Wahoh Oh (Sharp Corp.) RCS2009-280 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In LTE-Advanced uplink, it is considered to introduce closed-loop SU-MIMO (Single User Multiple Input Multiple Output) up to 4 layers with codebook based precoding scheme. Meanwhile, sounding reference signals (SRS) are transmitted from UE (User Equipment) to eNB (Enhanced Node B) to measure the channel state targeting frequency selection scheduling, optimal MCS (Modulation and Coding Schemes) , rank and precoder selection. It is necessary to assign orthogonal SRS resources in time or code domain for each Tx antenna because the receiver should calculate the channel separately. Therefore, SRS overhead would increase as the number of transmit antenna increases, resulting in the performance degradation due to scheduling delay, non-optimal MCS and precoder selection. In this paper, we evaluate the degradation numerically and propose that enlarging the SRS transmit interval is appropriate to minimize the performance degradation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
LTE-Advanced / Uplink / Single User MIMO / SRS / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 440, RCS2009-280, pp. 131-136, March 2010. |
Paper # |
RCS2009-280 |
Date of Issue |
2010-02-24 (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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RCS2009-280 |
Conference Information |
Committee |
RCS AN MoNA SR |
Conference Date |
2010-03-03 - 2010-03-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
YRP |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Communication Workshop |
Paper Information |
Registration To |
RCS |
Conference Code |
2010-03-RCS-AN-MoMuC-SR |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Throughput Evaluation for the Overhead of Sounding Reference Signals in LTE-Advanced Uplink |
Sub Title (in English) |
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Keyword(1) |
LTE-Advanced |
Keyword(2) |
Uplink |
Keyword(3) |
Single User MIMO |
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SRS |
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1st Author's Name |
Yosuke Akimoto |
1st Author's Affiliation |
Sharp Corporation (Sharp Corp.) |
2nd Author's Name |
Toshizo Nogami |
2nd Author's Affiliation |
Sharp Corporation (Sharp Corp.) |
3rd Author's Name |
Kazuyuki Shimezawa |
3rd Author's Affiliation |
Sharp Corporation (Sharp Corp.) |
4th Author's Name |
Masayuki Enomoto |
4th Author's Affiliation |
Sharp Corporation (Sharp Corp.) |
5th Author's Name |
Hiroshi Katsuragawa |
5th Author's Affiliation |
Sharp Corporation (Sharp Corp.) |
6th Author's Name |
Wahoh Oh |
6th Author's Affiliation |
Sharp Corporation (Sharp Corp.) |
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Speaker |
Author-1 |
Date Time |
2010-03-03 16:40:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2009-280 |
Volume (vol) |
vol.109 |
Number (no) |
no.440 |
Page |
pp.131-136 |
#Pages |
6 |
Date of Issue |
2010-02-24 (RCS) |
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