Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article An Optimization Theoretic Framework for Video Transmission with Minimal Total Distortion over Wireless Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 598063 14 pages doi 2009 598063 Research Article An Optimization Theoretic Framework for Video Transmission with Minimal Total Distortion over Wireless Networks Pejman Goudarzi Mohammad Hesam Tadayon and Mahmoud Mousavinejad Multimedia Group IT Faculty Iran Telecom Research Center ITRC . Box 14155-3961 Tehran 14399 55471 Iran Correspondence should be addressed to Pejman Goudarzi pgoudarzi@ Received 17 February 2008 Revised 4 October 2008 Accepted 10 January 2009 Recommended by Kameswara Namuduri Optimization theoretic-based rate allocation strategies can be used for the aim of allocating some optimal rates to the competing users in wireless ad hoc networks. By considering different objective functions such as congestion level total packet loss etc. the researchers propose some optimization framework by which the problem can be solved. Due to the rapid increase in the development of different video applications in such environments and the existence of difficulties in satisfying the prespecified QoS limits increasing the perceived video quality can be considered as an important and challenging issue. The quality of the received video stream is inversely proportional to the amount of distortion which is being imposed on the video stream by the network packet loss and the video encoder. The main contribution of the current paper is to introduce an optimization theoretic framework in which by optimal rate allocation to some competing video sources the aggregate distortion associated with all of the sources can be minimized. The numerical results verify the claims. Copyright 2009 Pejman Goudarzi et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction Convex .
