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Paper Abstract and Keywords
Presentation 2008-01-28 13:50
Bit Loading Algorithms Synchronized with Commercial Power Supply on In-home Power Line Multicarrier Communications
Shinya Honda, Daisuke Umehara, Satoshi Denno, Masahiro Morikura (Kyoto Univ.) CS2007-62
Abstract (in Japanese) (See Japanese page) 
(in English) In-home PLC (Power Line Communicaiton) is one of the most attractive in-home networkings.
However, there are a lot of technical issues for the realization of PLC with hight rate and high reliability.
These issues include the influence of frequency selective and linear periodically time-variant (LPTV) channel synchronized with commercial power supply.
In particular, we show that some kinds of switching power cevices impact deep and deterministic time selectivity for power line channels.
The combination of OFDM (Orthogonal Frequency Division Multiplexing) and bit loading algorithm is a powerful tool to increase the bit rate or reliability for quasi-static frequency selective channels including power line channels.
However, a quick response will be required for the execution of bit loading algorithm since power line channels are synchronized with commercial power supply.
In this paper, we propose a fast bit loading algorithm based on the fractional knapsack algorithm to enhance the bit rate under the condition that the transmitted power is constant.
Furthermore, we evaluate the achievable bit rate of the proposed algorithm for the SNR over a power line channel and compare it with the achievable bit rate based on water filling theory.
Keyword (in Japanese) (See Japanese page) 
(in English) power line communication / OFDM / LPTV channel / bit loading algorithm / water filling theory / fractional knapsack algorithm / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 463, CS2007-62, pp. 43-48, Jan. 2008.
Paper # CS2007-62 
Date of Issue 2008-01-21 (CS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee CS  
Conference Date 2008-01-28 - 2008-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Amami-Oshima Island 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Next generation network (NGN), power line communications, wireless communications, etc. 
Paper Information
Registration To CS 
Conference Code 2008-01-CS 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Bit Loading Algorithms Synchronized with Commercial Power Supply on In-home Power Line Multicarrier Communications 
Sub Title (in English)  
Keyword(1) power line communication  
Keyword(2) OFDM  
Keyword(3) LPTV channel  
Keyword(4) bit loading algorithm  
Keyword(5) water filling theory  
Keyword(6) fractional knapsack algorithm  
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Keyword(8)  
1st Author's Name Shinya Honda  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Daisuke Umehara  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Satoshi Denno  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Masahiro Morikura  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2008-01-28 13:50:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2007-62 
Volume (vol) vol.107 
Number (no) no.463 
Page pp.43-48 
#Pages
Date of Issue 2008-01-21 (CS) 


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