Fast Distributed Network File System using State Transition Model in the Media Streaming System

우순; 이준표

doi:http://dx.doi.org/

Journal of The Korea Society of Computer and Information

Abbr : JKSCI
2012, 17(6), pp.145-152
DOI :
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science

우순 ¹ , 이준표 ²

¹ 아주대학교
² LIG 넥스원

ABSTRACT

Due to the large sizes of streaming media, previous delivery techniques are not providing optimal performance. For this purpose, video proxy server is employed for reducing the bandwidth consumption, network congestion, and network traffic. This paper proposes a fast distributed network file system using state transition model in the media streaming system for efficient utilization of video proxy server. The proposed method is composed of three steps: step 1. Training process using state transition model, step 2. base and decision probability generation, and step 3. storing and deletion based on probability. In addition, storage space of video proxy server is divided into each segment area in order to store the segments efficiently and to avoid the fragmentation. The simulation results show that the proposed method performs better than other methods in terms of hit rate and number of deletion. Therefore, the proposed method provides the lowest user start-up latency and the highest bandwidth saving significantly.
KEYWORDS

Streaming service , Video proxy server , Network file system
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