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Media streaming services have been much more popular nowadays, and these services consume lots of network bandwidth. Peer-to-Peer(P2P) technology has been employed in the streaming systems to save the server bandwidth consumption and enhance the system scalability. In a P2P streaming system, the quality of the data scheduling scheme will largely affect the server stress that being saved. In this paper,...
Replication is a widely used technique in unstructured overlays to improve the content availability or the system performance. Among the prior work on replication, a fundamental question is often addressed: how many replicas should be kept for each data item if given the fixed request rates and the limited storage capability? The Square-Root Replication, in which the replica number of an item is proportional...
Providing continuous on-demand streaming services with VCR functionality over ubiquitous environments is challenging due to the stringent QoS requirements of streaming service as well as the dynamic characteristics of both underlying network and user behavior. In this paper, we propose SkipStream, a skip graph based peer-to-peer (P2P) on-demand streaming scheme with VCR support to address the above...
Self-organization is the key to implement self-calibration, autonomously coordination and P2P communication in sensor networks. Current researches mainly solve this problem in an inappropriate pre-planned manner. The swarm intelligence of the ant colony algorithm (ACA) provides a novel and efficient method for self-organization. For the similarity of sensor network and ant colony, we argue that the...
Peer-to-Peer (P2P) technology has been widely applied in today's Internet. Unstructured P2P systems, where peers connect with each other to form dynamic, flexible and scalable networks, are commonly used for resource sharing. Resource location in unstructured P2P systems tends to use "blind search" strategies (i.e. flooding and random walk) for its simplicity and low maintenance cost. However,...
The unstructured peer-to-peer (P2P) systems usually use a "blind search" method to find the requested data object by propagating a query to a number of peers randomly. In order to increase the success rate of blind search, replication techniques are widely used in these systems. Most P2P systems replicate the most frequently accessed data objects to improve system performance. However, existing...
The maintenance of overlay topologies in structured P2P (DHTs) will lead to great message overhead because of the sharp dynamic of the peers. And the DHTs are less usable because the strategy of DHT discards the useful application-specific information. Here we present a usable and easy to maintain search algorithm for structured P2P systems, Small World based Search (SWS). In SWS, the structure of...
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