Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
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 2009-01-22 09:35
A Study on Channel Estimation using EM algorithm for mobile WiMAX systems
Yasufumi Kawahara, Masahiro Fujii, Yu Watanabe (Utsunomiya Univ.) CS2008-58
Abstract (in Japanese) (See Japanese page) 
(in English) The concern with the mobile WiMAX system, which is one of high speed wireless communication techniques, has been growing recently.It is, however, necessary to estimate the time-variant channel accurately in order to equalize the received signal from the moving vehicular at high speed.In this paper, we propose a novel channel estimation algorithm using
the Expectation-Maximization (EM) algorithm for the uplink PUSC(Partial Usage of SubChannels) mode of the mobile WiMAX system in the time-varying multi-path channels.The proposed algorithm estimates the channel frequency responses on the data signal carriers based on the estimated channel frequency responses on the pilot signal carriers. We assume that the estimates of the channels on the data signal carriers are given by a linear combination of the estimates of the channels on the pilot signal carriers and determine the coefficient of the combination using the EM algorithm.By computer simulations, we evaluate performances of the proposed algorithm by comparing with the conventional linear interpolation algorithm.
Keyword (in Japanese) (See Japanese page) 
(in English) Mobile WiMAX / Uplink PUSC / Channel Estimation / EM Algorithm / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 394, CS2008-58, pp. 7-12, Jan. 2009.
Paper # CS2008-58 
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)
Download PDF CS2008-58

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) A Study on Channel Estimation using EM algorithm for mobile WiMAX systems 
Sub Title (in English)  
Keyword(1) Mobile WiMAX  
Keyword(2) Uplink PUSC  
Keyword(3) Channel Estimation  
Keyword(4) EM Algorithm  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yasufumi Kawahara  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Masahiro Fujii  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Yu Watanabe  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
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 ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2009-01-22 09:35:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CS2008-58 
Volume (vol) vol.108 
Number (no) no.394 
Page pp.7-12 
#Pages 6 
Date of Issue 2009-01-15 (CS) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan