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Paper Abstract and Keywords
Presentation 2008-10-24 13:40
Improving Video Quality by Feedbacked FEC in Ad hoc Multicasting
Hiroyuki Iizuka (NEC Communication Systems, Ltd.), Shiro Sakata (Chiba Univ.), Yuichiro Ezure, Akira Matsumoto, Tetsuya Ito (NEC Communication Systems, Ltd.) AN2008-50
Abstract (in Japanese) (See Japanese page) 
(in English) Multicasting of voice and video through an ad hoc network or a wireless mesh network is recognized as a promising service. As packets are, generally, sent by broadcasting without ACK(Acknowledgement) at data link layer, a packet loss at data link layer directly causes the data loss at application layer. The authors applied FEC(Forward Error Correction) , whish is used to recover the packet loss, to ODMRP(On-Demand Multicast Routing Protocol), a multicast protocol for wireless mesh networks. This article proposes the following two new functions based on the FEC applied multicast. First function is that receivers reply the quality of received data to the sender. Second function is the heightening of recovery ratio for key frames in video streaming. The effectiveness of the proposed functions are proved using real nodes in an in-house environment.
Keyword (in Japanese) (See Japanese page) 
(in English) Ad Hoc network / Wireless mesh network / Multicasting / ODMRP / FEC / Improving video quality / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 251, AN2008-50, pp. 123-128, Oct. 2008.
Paper # AN2008-50 
Date of Issue 2008-10-15 (AN) 
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 SR RCS USN AN  
Conference Date 2008-10-22 - 2008-10-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa industry support center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless discributed network special session and general session 
Paper Information
Registration To AN 
Conference Code 2008-10-SR-RCS-USN-AN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving Video Quality by Feedbacked FEC in Ad hoc Multicasting 
Sub Title (in English)  
Keyword(1) Ad Hoc network  
Keyword(2) Wireless mesh network  
Keyword(3) Multicasting  
Keyword(4) ODMRP  
Keyword(5) FEC  
Keyword(6) Improving video quality  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroyuki Iizuka  
1st Author's Affiliation NEC Communication Systems, Ltd. (NEC Communication Systems, Ltd.)
2nd Author's Name Shiro Sakata  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Yuichiro Ezure  
3rd Author's Affiliation NEC Communication Systems, Ltd. (NEC Communication Systems, Ltd.)
4th Author's Name Akira Matsumoto  
4th Author's Affiliation NEC Communication Systems, Ltd. (NEC Communication Systems, Ltd.)
5th Author's Name Tetsuya Ito  
5th Author's Affiliation NEC Communication Systems, Ltd. (NEC Communication Systems, Ltd.)
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Speaker Author-1 
Date Time 2008-10-24 13:40:00 
Presentation Time 20 minutes 
Registration for AN 
Paper # AN2008-50 
Volume (vol) vol.108 
Number (no) no.251 
Page pp.123-128 
#Pages 6 
Date of Issue 2008-10-15 (AN) 

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