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Paper Abstract and Keywords
Presentation 2013-06-20 09:50
A Study on Joint Transmitter/Receiver Channel Equalization for Frequency-Domain Punctured Turbo Codes
Kengo Nakamura (Tokyo Univ. of Science), Kazuki Takeda (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2013-42
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a frequency-domain transmitter filtering technique assuming the channel knowledge at the transmitter for turbo coded single-carrier transmission with our previously reported frequency-domain puncturing at the transmitter and turbo equalization at the receiver. In the coded single carrier transmission under the frequency-selective fading channel, the inter-symbol-interference (ISI) severely degrades the error rate at the receiver. Furthermore, the frequency-domain puncturing causes additional ISI for the sake of increased number of coded bits to be transmitted. We propose an additional use of one-tap frequency-domain filtering of the transmission signal at the transmitter to further reduces the ISI or increase the frequency diversity for increasing the received signal power. In order to take into account the ISI reduction at the receiver by the turbo equalization, the proposed frequency-domain transmitter filtering is designed with the ISI level as a parameter. When the ISI level parameter is set to high, the proposed frequency-domain transmitter filtering works so that the channel variation in frequency is compensated so that the ISI observed at the receiver is decreased. On the other hand, when the ISI level parameter is set to low, the transmitter filtering tries to enhance the channel variation so that the received signal power at the receiver increases (frequency diversity). Simulation results show that with appropriate setting of the ISI level parameter according to the number of iteration in turbo equalization, the proposed frequency-domain transmitter filtering reduces the error rate compared to the case without transmitter filtering. We also show the effectiveness of the frequency-domain puncturing compared to the conventional time-domain puncturing with the number of receiver antennas as a parameter.
Keyword (in Japanese) (See Japanese page) 
(in English) turbo code / rate control / puncturing / turbo equalization / transmitter filtering / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 93, RCS2013-42, pp. 31-36, June 2013.
Paper # RCS2013-42 
Date of Issue 2013-06-13 (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)
Download PDF RCS2013-42

Conference Information
Committee RCS  
Conference Date 2013-06-20 - 2013-06-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
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 2013-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Joint Transmitter/Receiver Channel Equalization for Frequency-Domain Punctured Turbo Codes 
Sub Title (in English)  
Keyword(1) turbo code  
Keyword(2) rate control  
Keyword(3) puncturing  
Keyword(4) turbo equalization  
Keyword(5) transmitter filtering  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kengo Nakamura  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Kazuki Takeda  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Kenichi Higuchi  
3rd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2013-06-20 09:50:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2013-42 
Volume (vol) vol.113 
Number (no) no.93 
Page pp.31-36 
#Pages 6 
Date of Issue 2013-06-13 (RCS) 

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