Paper Abstract and Keywords |
Presentation |
2013-05-17 13:25
Performance of Decision-Feedback Channel Estimation Using Two-Dimensional MMSE Algorithm for TDM Based Control Signals in OFDMA Downlink Shunsuke Okaniwa (Tokyo City Univ.), Nobuhiko Miki, Teruo Kawamura (NTT DOCOMO), Mamoru Sawahashi (Tokyo City Univ.) RCS2013-33 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have proposed decision-feedback channel estimation (DFCE) methods using soft-symbol estimation of control signals for TDM based control channel in the orthogonal frequency division multiple access (OFDMA) downlink. In the proposed DFCE method, channel estimation accuracy is improved by using soft-symbol estimations of the control signals based on the extrinsic log-likelihood ratio (LLR) at the soft output Viterbi algorithm (SOVA) decoder output for convolutional coding in addition to the reference signals (RSs). This paper presents the average block error rate (BLER) performance of the control signals using the DFCE with 2-dimensional minimum mean-square error (MMSE) channel estimation filter in time and frequency domains for OFDMA downlink. By computer simulation evaluations, we show the DFCE with MMSE channel estimation filter in time domain improves the tracking ability against fast channel variation due to high maximum Doppler frequency. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
mobile communications / control signals / OFDMA / decision-feedback channel estimation / MMSE channel estimation / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 37, RCS2013-33, pp. 61-66, May 2013. |
Paper # |
RCS2013-33 |
Date of Issue |
2013-05-09 (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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RCS2013-33 |
Conference Information |
Committee |
RCS IN |
Conference Date |
2013-05-16 - 2013-05-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Wireless Internet, Multi-hop network, Mesh network, Network coding, Cross layer technique, Wireless communication, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2013-05-RCS-IN |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Performance of Decision-Feedback Channel Estimation Using Two-Dimensional MMSE Algorithm for TDM Based Control Signals in OFDMA Downlink |
Sub Title (in English) |
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Keyword(1) |
mobile communications |
Keyword(2) |
control signals |
Keyword(3) |
OFDMA |
Keyword(4) |
decision-feedback channel estimation |
Keyword(5) |
MMSE channel estimation |
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1st Author's Name |
Shunsuke Okaniwa |
1st Author's Affiliation |
Tokyo City University (Tokyo City Univ.) |
2nd Author's Name |
Nobuhiko Miki |
2nd Author's Affiliation |
NTT DOCOMO (NTT DOCOMO) |
3rd Author's Name |
Teruo Kawamura |
3rd Author's Affiliation |
NTT DOCOMO (NTT DOCOMO) |
4th Author's Name |
Mamoru Sawahashi |
4th Author's Affiliation |
Tokyo City University (Tokyo City Univ.) |
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Speaker |
Author-4 |
Date Time |
2013-05-17 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2013-33 |
Volume (vol) |
vol.113 |
Number (no) |
no.37 |
Page |
pp.61-66 |
#Pages |
6 |
Date of Issue |
2013-05-09 (RCS) |
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