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Author Zhu, Xiaoqing ♦ Girod, Bernd
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Computational Burden ♦ Multiple Video Stream ♦ Multi-stream Video Transmission ♦ Optimal Rate Allocation ♦ Video Stream ♦ Common Network Resource ♦ Global Information ♦ Distributed Solution ♦ Rate Allocation ♦ Distributed Rate Allocation ♦ Rate Allocation Algorithm ♦ Link Price Update ♦ Subgradient Method ♦ Exhaustive Search ♦ Local Observation ♦ Total Distortion ♦ Simulation Result ♦ Ad Hoc Network ♦ Efficient Manner ♦ Rate Adaptation ♦ Available Resource
Description When multiple video streams are present in an ad hoc network, they share and compete for the common network resources. A rate allocation algorithm must balance the available resources among the video streams in a fair and efficient manner. In addition, it is desirable to have a distributed solution so that nodes do not need to collect global information of the network and that the computational burden can be shared. We propose a distributed rate allocation algorithm which minimizes the total distortion of all video streams. Based on the subgradient method, the proposed scheme only requires link price updates at each relay node based on local observations and rate adaptations at each source node derived from rate-distortion (RD) models of the video. Simulation results show that the proposed scheme can achieve the same optimal rate allocation as that obtained from exhaustive search. 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2005-01-01
Publisher Institution Proc. IEEE International Conference on Image Processing (ICIP’05