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Paper Abstract and Keywords
Presentation 2011-07-22 11:05
Decision-Directed Phase Noise Compensation for 10 Gbps Millimeter-Wave OFDM Systems with High-Coding-Rate LDPC Code
Yuki Hashimoto, Satoshi Suyama, Hiroshi Suzuki, Kazuhiko Fukawa (Tokyo Tech.) RCS2011-99
Abstract (in Japanese) (See Japanese page) 
(in English) A millimeter-wave 60 GHz-band OFDM system that achieves 10 Gbps bit-rate by using high-coding-rate LDPC code and 64QAM is investigated. This report employs decision-directed phase noise compensation (DD-PNC) in the OFDM system as a countermeasure of the phase noise which occurs in the frequency synthesizer, and evaluates transmission performances by computer simulations and experiments. When a millimeter-wave 60 GHz-band transceiver is implemented by single-chip RF-CMOS IC based on the silicon technology, the relatively large phase noise severely degrades transmission performance of multi-level modulation schemes. In order to solve this problem, DD-PNC, which compensates for the phase noise in demodulation processing of the OFDM system, has been proposed. This report employs a modulation and coding scheme that combines the LDPC code with the coding rate of 14/15 and 64QAM to achieve 10 Gbps bit-rate, which is higher than that of the conventional scheme, and also adopts DD-PNC as a countermeasure of the phase noise. DD-PNC estimates the phase noise by the least-mean-square algorithm by using the decoder output, and then removes the estimated phase noise from the received signal. However, it is expected that the high coding rate decreases the decoding gain, which degrades the performance of DD-PNC. First, the computer simulation evaluates the transmission performance of DD-PNC. The simulation results demonstrated that DD-PNC can achieve 10 Gbps even when the phase noise is $-$90 dBc/Hz at 1 MHz offset. In addition, baseband transmission experiment verifies the effectiveness of DD-PNC.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless communication / millimeter wave / phase noise compensation / OFDM / multi-level modulation / LDPC code / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 145, RCS2011-99, pp. 147-152, July 2011.
Paper # RCS2011-99 
Date of Issue 2011-07-14 (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)
Download PDF RCS2011-99

Conference Information
Committee RCS NS  
Conference Date 2011-07-21 - 2011-07-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Asahikawa Civic Culture Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Fixed/Wireless Network, Hand Over, Relay, Distributed MIMO, Mobile Ad-hoc Network, etc. 
Paper Information
Registration To RCS 
Conference Code 2011-07-RCS-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Decision-Directed Phase Noise Compensation for 10 Gbps Millimeter-Wave OFDM Systems with High-Coding-Rate LDPC Code 
Sub Title (in English)  
Keyword(1) Wireless communication  
Keyword(2) millimeter wave  
Keyword(3) phase noise compensation  
Keyword(4) OFDM  
Keyword(5) multi-level modulation  
Keyword(6) LDPC code  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuki Hashimoto  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
2nd Author's Name Satoshi Suyama  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
3rd Author's Name Hiroshi Suzuki  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
4th Author's Name Kazuhiko Fukawa  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
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Speaker Author-1 
Date Time 2011-07-22 11:05:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2011-99 
Volume (vol) vol.111 
Number (no) no.145 
Page pp.147-152 
#Pages 6 
Date of Issue 2011-07-14 (RCS) 

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