User-perceived-quality aware replication strategy for video streaming over wireless mesh networks

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Nguyen-Son Vo, Wenqing Chen, Quang Trung Duong
Title: User-perceived-quality aware replication strategy for video streaming over wireless mesh networks
Conference name: 7th International Wireless Communications and Mobile Computing Conference, IWCMC
Year: 2011
Pagination: 406-411
ISBN: 978-142449539-9
Publisher: IEEE
City: Istanbul
URI/DOI: 10.1109/IWCMC.2011.5982568
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Language: English
Abstract: In this paper, we consider the replication strategy for the applications of video streaming in wireless mesh networks (WMNs). In particular, we propose a closed-form of optimal replication densities for a set of frames of a video streaming based on exploiting not only the skewed access probability of each frame but also the skewed loss probability and skewed encoding rate-distortion information. The simulation results demonstrate that our method improves the replication performance in terms of user-perceived quality (UPQ) including: 1) minimum average maximum reconstructed distortion for high peak signal-to-noise ratio (PSNR), 2) small reconstructed distortion fluctuation among frames for smooth playback, and 3) reasonable average maximum transmission distance for continuous playback. Furthermore, the proposed strategy consumes small storage capacity requirement for saving the resource of network compared to other existing optimal replication strategies.
Subject: Computer Science\Networks and Communications
Keywords: rate distortion, replication strategy, user perceived quality, wireless mesh networks
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