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Paper Abstract and Keywords
Presentation 2009-01-22 10:35
OFDM Signal Transmission System with Chirp-Z transforms -- For Development of the 4th Generation Mobile Communication Systems --
Osamu Ichiyoshi (Human Network for Better 21 Century) CS2008-60
Abstract (in Japanese) (See Japanese page) 
(in English) Various signal transmission methods based on OFDM are proposed for the next generation mobile communication networks. As the required data rates get higher the conventional FFT method will have the excessive processing and power consumption problem making it difficult to develop small hand-held terminals. In order to solve the problem an OFDM signal transmission method based on Chirp-Z transform is proposed. The features are a Nyquist signal transmission method is applicable at the receiver which effectively can reduce inter-channel interferences, the timing error can be measured independently for each channel, and the power consumption can be reduced drastically if a SAW device is used for the chirp filter. The inverse Chirp-Z transform can generate the OFDM signal at the transmitter. The proposed method will be effective for the early development of the next generation mobile communication networks.
Keyword (in Japanese) (See Japanese page) 
(in English) LTE / G4 / OFDM / Guard Time / Dealy spreads / GI cut filter / Bandwidth shaping / Nyquist  
Reference Info. IEICE Tech. Rep., vol. 108, no. 394, CS2008-60, pp. 19-24, Jan. 2009.
Paper # CS2008-60 
Date of Issue 2009-01-15 (CS) 
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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Conference Information
Committee CS  
Conference Date 2009-01-22 - 2009-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Iriomote Island, Okinawa 
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 2009-01-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) OFDM Signal Transmission System with Chirp-Z transforms 
Sub Title (in English) For Development of the 4th Generation Mobile Communication Systems 
Keyword(1) LTE  
Keyword(2) G4  
Keyword(3) OFDM  
Keyword(4) Guard Time  
Keyword(5) Dealy spreads  
Keyword(6) GI cut filter  
Keyword(7) Bandwidth shaping  
Keyword(8) Nyquist  
1st Author's Name Osamu Ichiyoshi  
1st Author's Affiliation Human Network for Better 21 Century (Human Network for Better 21 Century)
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Speaker Author-1 
Date Time 2009-01-22 10:35:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2008-60 
Volume (vol) vol.108 
Number (no) no.394 
Page pp.19-24 
#Pages 6 
Date of Issue 2009-01-15 (CS) 

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