A segment version transcoding for client-centric wireless mobile media streaming  

作　　者：LEE Chong-deuk BANG Jun-ho JEONG Taeg-won 

机构地区：[1]Division of Electronic Engineering, Chonbuk National University [2]Department of IT Applied System Engineering, Chonbuk National University

出　　处：《Journal of Central South University》2013年第9期2372-2377,共6页中南大学学报（英文版）

基　　金：Project(2011)financially supported by Research Funds of Chonbuk National University,Korea

摘　　要：An object segment similarity function is taken into account from the continuous media frames to measure the individual streaming profit of certain segment versions of a media object.Therefore,a new segment version-based transcoding(SVT)mechanism is derived for a quality of service(QoS)of client-centric media streaming in wireless mobile networks.The derived function utilizes the fuzzy similarity of certain segment versions of an object.This mechanism provides the effectiveness of reduction of the stream startup latency among segment versions,and the average access of each version.Thus,the proposed segment version transcoding mechanism reduces packet loss which in turn increases streaming performance and throughput.The performance of the partitioned segment versions is simulated and some segment versions are completed.The simulation results show that the proposed mechanism outperforms the other mechanisms in average cache hit ratio and in average startup latency ratio.An object segment similarity function is taken into account from the continuous media frames to measure the individual streaming profit of certain segment versions of a media object.Therefore,a new segment version-based transcoding （SVT） mechanism is derived for a quality of service （QoS） of client-centric media streaming in wireless mobile networks.The derived function utilizes the fuzzy similarity of certain segment versions of an object.This mechanism provides the effectiveness of reduction of the stream startup latency among segment versions,and the average access of each version.Thus,the proposed segment version transcoding mechanism reduces packet loss which in turn increases streaming performance and throughput.The performance of the partitioned segment versions is simulated and some segment versions are completed.The simulation results show that the proposed mechanism outperforms the other mechanisms in average cache hit ratio and in average startup latency ratio.

关 键 词：similarity function media object segment version client-centric media streaming 

分 类 号：TN919.8[电子电信—通信与信息系统]