Paper Abstract and Keywords |
Presentation |
2012-06-21 16:30
Investigation on Link Performance Modeling of Interference Rejection Combining Receiver for System Level Evaluation in LTE-Advanced Downlink Yousuke Sano, Yusuke Ohwatari, Nobuhiko Miki, Akihito Morimoto, Yukihiko Okumura (NTT DOCOMO) RCS2012-57 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The interference rejection combining (IRC) receiver, which can suppress inter-cell interference, is effective in improving the cell edge user throughput.This paper investigates and proposes IRC receiver modeling schemes for the covariance matrix and channel estimation errors. In a system performance evaluation, the link performance modeling of the IRC receiver, i.e., the output signal-to-interference-plus-noise power ratio (SINR) after IRC reception including the estimation errors, is very important in evaluating the actual performance of the IRC receiver in the system level simulation. This is because these errors affect the suppression of the interference signals for the IRC receiver. This paper investigates and proposes IRC receiver modeling schemes focusing on the covariance matrix estimation error. As the modeling scheme for the covariance matrix, we propose a scheme that averages the conventional approximation using the complex Wishart distribution in the frequency domain to address issues that arise in a frequency selective fading channel. The results of simulations assuming LTE/LTE-Advanced downlink with two transmitter and two receiver antenna branches show that the proposed modeling scheme for the covariance matrix estimation error accurately approximate the performance of the realistic IRC receiver, which estimates the covariance matrix based on the demodulation reference signal (DM-RS), even in a frequency selective fading channel. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
LTE-Advanced / interference rejection combining / inter-cell interference / system level simulation / link performance modeling / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 89, RCS2012-57, pp. 85-90, June 2012. |
Paper # |
RCS2012-57 |
Date of Issue |
2012-06-14 (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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RCS2012-57 |
Conference Information |
Committee |
RCS |
Conference Date |
2012-06-21 - 2012-06-22 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hakodate City Central Library |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2012-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Investigation on Link Performance Modeling of Interference Rejection Combining Receiver for System Level Evaluation in LTE-Advanced Downlink |
Sub Title (in English) |
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Keyword(1) |
LTE-Advanced |
Keyword(2) |
interference rejection combining |
Keyword(3) |
inter-cell interference |
Keyword(4) |
system level simulation |
Keyword(5) |
link performance modeling |
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1st Author's Name |
Yousuke Sano |
1st Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
2nd Author's Name |
Yusuke Ohwatari |
2nd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
3rd Author's Name |
Nobuhiko Miki |
3rd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
4th Author's Name |
Akihito Morimoto |
4th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
5th Author's Name |
Yukihiko Okumura |
5th Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
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Speaker |
Author-1 |
Date Time |
2012-06-21 16:30:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2012-57 |
Volume (vol) |
vol.112 |
Number (no) |
no.89 |
Page |
pp.85-90 |
#Pages |
6 |
Date of Issue |
2012-06-14 (RCS) |
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