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Transcoding Load Estimation Method for Load Balance on Distributed Transcoding Environments  

Seo, Dong-Mahn (강원대학교 컴퓨터정보통신공학과)
Heo, Nan-Sok (강원대학교 컴퓨터정보통신공학과)
Kim, Jong-Woo (강원대학교 컴퓨터정보통신공학과)
Jung, In-Bum (강원대학교 컴퓨터정보통신공학과)
Abstract
Owing to the improved wireless communication technologies, it is possible to provide streaming service of multimedia with PDAs and mobile phones in addition to desktop PCs. Since mobile client devices have low computing power and low network bandwidth due to wireless network, the transcoding technology to adapt media for mobile client devices considering their characteristics is necessary. Transcoding servers transcode the source media to the target media within corresponding grades and provide QoS in real-time. In particular, an effective load balancing policy for transcoding servers is inevitable to support QoS for large scale mobile users. In this paper, the transcoding load estimation algorithm is proposed for load balance on the distributed transcoding environments. The proposed algorithm estimates transcoding time from transcoding server information, movie information and target transcoding bit-rate. The estimated transcoding time is proved based on experiments.
Keywords
transcoding; load balance; MPEG; time estimation;
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