• Title/Summary/Keyword: 전자동

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A Selective Video Data Deletion Algorithm to Free Up Storage Space in Video Proxy Server (비디오 프록시 서버에서의 저장 공간 확보를 위한 선택적 동영상 데이터 삭제 알고리즘)

  • Lee, Jun-Pyo;Park, Sung-Han
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.46 no.4
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    • pp.121-126
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    • 2009

  • Video poxy server which is located near clients can store the frequently requested video data in storage space in order to minimize initial latency and network traffic significantly. However, due to the limited storage space in video proxy server, an appropriate deletion algorithm is needed to remove the old video data which is not serviced for a long time. Thus, we propose an efficient video data deletion algorithm for video proxy server. The proposed deletion algorithm removes the video which has the lowest request possibility based on the user access patterns. In our algorithm, we arrange the videos which are stored in video proxy server according to the requested time sequence and then, select the video which has the oldest requested time. The selected video is partially removed in order to free up storage space in video poky server. The simulation results show that the proposed algorithm performs better than other algorithms in terms of the block hit rate and the number of block deletion.

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