Paper Abstract and Keywords |
Presentation |
2009-05-21 11:20
Study on Multipath Division SC/MMSE Turbo Equalization for Amplify-and-Forward Relaying Katsuya Kato, Ryota Yamada, Takashi Yoshimoto, Kazuyuki Shimezawa, Minoru Kubota, Naoki Okamoto (Sharp) RCS2009-7 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This report proposes amplify-and-forward (AF) relay stations in cellular systems and multipath division turbo equalization (MD-TE) at mobile terminals. An AF relay station retransmits signals from a base station after amplifying. Therefore, in addition to expanding cell coverage, improvement of signal to noise ratio (SNR) is expected because mobile terminals can utilize signals both from a base station and via relay stations for the receiving process. However, AF relay processing has an amount of delay time, which results in large delayed waves at mobile terminals. When delay time of such waves exceeds the guard interval (GI) length, OFDM signal transmissions suffer from severe degradation because inter symbol interference (ISI) and inter carrier interference (ICI) occur. MD-TE mitigates ISI and ICI by dividing received signal into several blocks whose delay time do not exceed the GI length and carries out MMSE filtering to the blocks. Computer simulations demonstrate that AF relaying and MD-TE can improve SNR, mitigate ISI and ICI, and achieve excellent throughput performance. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
OFDM / Guard Interval / Inter Symbol Interference / Inter Carrier Interference / Turbo Equalization / AF relay / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 38, RCS2009-7, pp. 37-42, May 2009. |
Paper # |
RCS2009-7 |
Date of Issue |
2009-05-14 (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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RCS2009-7 |
Conference Information |
Committee |
RCS IN |
Conference Date |
2009-05-21 - 2009-05-22 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
multihop, mesh network, network coding, wireless communication, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2009-05-RCS-IN |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study on Multipath Division SC/MMSE Turbo Equalization for Amplify-and-Forward Relaying |
Sub Title (in English) |
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Keyword(1) |
OFDM |
Keyword(2) |
Guard Interval |
Keyword(3) |
Inter Symbol Interference |
Keyword(4) |
Inter Carrier Interference |
Keyword(5) |
Turbo Equalization |
Keyword(6) |
AF relay |
Keyword(7) |
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Keyword(8) |
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1st Author's Name |
Katsuya Kato |
1st Author's Affiliation |
Sharp Corporation (Sharp) |
2nd Author's Name |
Ryota Yamada |
2nd Author's Affiliation |
Sharp Corporation (Sharp) |
3rd Author's Name |
Takashi Yoshimoto |
3rd Author's Affiliation |
Sharp Corporation (Sharp) |
4th Author's Name |
Kazuyuki Shimezawa |
4th Author's Affiliation |
Sharp Corporation (Sharp) |
5th Author's Name |
Minoru Kubota |
5th Author's Affiliation |
Sharp Corporation (Sharp) |
6th Author's Name |
Naoki Okamoto |
6th Author's Affiliation |
Sharp Corporation (Sharp) |
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Speaker |
Author-1 |
Date Time |
2009-05-21 11:20:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2009-7 |
Volume (vol) |
vol.109 |
Number (no) |
no.38 |
Page |
pp.37-42 |
#Pages |
6 |
Date of Issue |
2009-05-14 (RCS) |
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