AAA-IDEA '06 Proceedings of the 2nd international workshop on Advanced architectures and algorithms for internet delivery and applications
P2P transfer of partial stream in multimedia multicast
Journal of Network and Computer Applications
Improving VoD Performance with LAN Client Back-End Buffering
IEEE MultiMedia
Adaptive caching with heterogeneous devices in mobile peer to peer network
Proceedings of the 2008 ACM symposium on Applied computing
An evolution-based cache scheme for scalable mobile data access
Proceedings of the 2nd international conference on Scalable information systems
Optimized scalable cache management for video streaming system
Multimedia Tools and Applications
Peer assisted video streaming with supply-demand-based cache optimization
IEEE Transactions on Multimedia - Special section on communities and media computing
Proxy caching for video-an-demand using flexible starting point selection
IEEE Transactions on Multimedia
On the partial caching of streaming video
Proceedings of the 2012 IEEE 20th International Workshop on Quality of Service
Towards a predictive cache replacement strategy for multimedia content
Journal of Network and Computer Applications
Streaming media service based on fuzzy similarity in wireless mobile networks
The Journal of Supercomputing
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Proxy caching of large multimedia objects on the edge of the Internet has become increasingly important for reducing network latency. For a large media object, such as a two-hour video, treating the whole media as a single object for caching is not appropriate. In this paper, we study three media segmentation approaches to proxy caching: fixed, pyramid, and skyscraper. Blocks of a media stream are grouped into various segments for cache management. The cache admission and replacement policies attach different caching priorities to individual segments, taking into account the access frequency of the media object and the segment distance from the start of the media. These caching policies give preferential treatment to the beginning segments. As such, most user requests can be quickly played back from the proxy servers without delay. Event-driven simulations are conducted to evaluate the segmentation approaches and compare them with whole media caching. The results show that: 1) compared with whole media caching, segmentation-based caching is more effective not only in increased byte-hit ratio but also in lowered fraction of requests that requires delayed start; 2) pyramid segmentation, where segment size increases exponentially, is the best segmentation approach; and 3) segmentation-based caching is especially advantageous when the cache size is limited, when the set of hot media objects changes over time, when the media file size is large, and when there are a large number of distinct media objects.