CAJ | 학술논문

本文介绍了P2P-VOD系统中的MVC缓存策略,该策略是为了改进流媒体系统视频播放的流畅程度,服务器负载压力而提出的.P2P-VOD系统视频的连续播放,服务器的被请求频率和用户的满意程度是系统重要因素,然而现在系统中的SVC缓存策略没有充分考虑到冷热门频道节点重叠存储数据的情况,由此本文提出MVC缓存策略,该策略充分考虑到点播系统中视频冷热度,流行值等会引起系统整体缓存不均衡的因素,提高冷门视频数据分块缓存量,在节点多的情况下,热门频道节点帮助冷门频道下载数据分片,在服务器通信量不足的情况下,提高视频播放的流畅程度,减轻服务器的负载压力.
본문개소료P2P-VOD계통중적MVC완존책략,해책략시위료개진류매체계통시빈파방적류창정도,복무기부재압력이제출적.P2P-VOD계통시빈적련속파방,복무기적피청구빈솔화용호적만의정도시계통중요인소,연이현재계통중적SVC완존책략몰유충분고필도랭열문빈도절점중첩존저수거적정황,유차본문제출MVC완존책략,해책략충분고필도점파계통중시빈랭열도,류행치등회인기계통정체완존불균형적인소,제고랭문시빈수거분괴완존량,재절점다적정황하,열문빈도절점방조랭문빈도하재수거분편,재복무기통신량불족적정황하,제고시빈파방적류창정도,감경복무기적부재압력.
this paper introduces the MVC cache strategy in P2P-VOD system, the strategy is to improve the fluency and change the pressure of the Server in streaming video system. P2P-VOD system's continuous playback, the request frequency on the server and user's satisfaction is an important factor, however, the Single video cache in today's P2P VOD system does not fully take into ac-count store data between hot-cold channels, this article raise the Multi video cache strategy, the strategy to take full account of video hot and cold, epidemic value which will cause imbalance on P2P VOD, it can increase video data quantity in the overlay, when there are multi-nodes in the system, hot Channel nodes can help the less popular channels to download segment, when the traffic is not good enough, it can enhance the fluency and reduce the pressure of the server.