IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2008-03-07 11:15
On Resolution for Inter-Carrier Interference in OFDM Based on ICA
Vithaya Sayvisith, Tetsuya Kimura, Fuminari Nakagawa, Hiroshi Shiratsuchi, Naomi Haratani, Hiromu Gotanda (Kinki Univ.) CAS2007-129 SIP2007-204 CS2007-94
Abstract (in Japanese) (See Japanese page) 
(in English) Carrier frequency offset (CFO) causes inter-carrier interference (ICI) between the sub-carriers in Orthogonal Frequency Division Multiplexing (OFDM) systems, which degrades the system performance.
In this paper, a new approach based on independent component analysis (ICA) is proposed to cancel the ICI, to estimate the flat-fading sub-channel and to restore the transmitted symbols, by using only the received symbols.
First, the ICI problem is formulated as an ICA model under the flat-fading sub-channels.
Next, the permutation and the scaling indeterminacy inherent in ICA are resolved. Then the CFO is estimated from ICA results.
If the flat-fading coefficient takes a phase within ±π/4 at every sub-carrier under QAM type modulation, the coefficient can be estimated by use of the fact that, after CFO cancellation, the receive symbols at each sub-carrier are almost uniformly changed from the transmitted symbols in proportion with the magnitude and the phase of the coefficient.
These results are utilized to restore the unknown transmitted symbols.
Finally, the proposed method is verified for 16QAM by several simulations.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / CFO / ICI / Fading channel / Independent Component Analysis / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 529, SIP2007-204, pp. 23-28, March 2008.
Paper # SIP2007-204 
Date of Issue 2008-02-29 (CAS, SIP, 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)
Download PDF CAS2007-129 SIP2007-204 CS2007-94

Conference Information
Committee CS SIP CAS  
Conference Date 2008-03-06 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaguchi University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network processors, signal processing for communications, wireless LAN/PAN, etc. 
Paper Information
Registration To SIP 
Conference Code 2008-03-CS-SIP-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Resolution for Inter-Carrier Interference in OFDM Based on ICA 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) CFO  
Keyword(3) ICI  
Keyword(4) Fading channel  
Keyword(5) Independent Component Analysis  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Vithaya Sayvisith  
1st Author's Affiliation Kinki Univesity (Kinki Univ.)
2nd Author's Name Tetsuya Kimura  
2nd Author's Affiliation Kinki Univesity (Kinki Univ.)
3rd Author's Name Fuminari Nakagawa  
3rd Author's Affiliation Kinki Univesity (Kinki Univ.)
4th Author's Name Hiroshi Shiratsuchi  
4th Author's Affiliation Kinki Univesity (Kinki Univ.)
5th Author's Name Naomi Haratani  
5th Author's Affiliation Kinki Univesity (Kinki Univ.)
6th Author's Name Hiromu Gotanda  
6th Author's Affiliation Kinki Univesity (Kinki Univ.)
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2008-03-07 11:15:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # CAS2007-129, SIP2007-204, CS2007-94 
Volume (vol) vol.107 
Number (no) no.527(CAS), no.529(SIP), no.531(CS) 
Page pp.23-28 
#Pages
Date of Issue 2008-02-29 (CAS, SIP, CS) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan