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This paper focuses on incentive, free rider, and fairness issues of p2p streaming systems. P2P streaming systems, applying p2p model over streaming applications, significantly improve the system scalability. However, instability and loose control of p2p model also impose uncertainty factors to p2p streaming systems. This paper proposed a contribution-aware p2p model, denoted as CAPS- Contribution...
The increasingly popular online hosting systems are designed to provide versatile and convenient platforms for content hosting and sharing. To guarantee adequate levels of service quality while conserving prohibitive server costs, such systems are often designed to integrate peer bandwidth contributions with strategic server resource provisioning in a complementary and transparent manner. This paper...
Load balancing in distributed computing environment enhances the availability and scalability of entire system. The computational paradigm has shifted dramatically from standalone computing, C/S computing, distributed computing to cluster computing paradigm. Although numerous works has been done on the issue of process migration and load balancing, a comprehensive approach still misses out on various...
This paper presents a simple decentralized service deployment mechanism that can be used to offer services with high availability by using contributed resources with variable, possibly very low availability. It uses little information about the state of the group, and provides best-effort results. Contributory computer systems are those where users provide their own resources to be used collectively...
Recent outages in several Web services have demonstrated the potential damage of availability disruptions, since millions of end users rely on these services powered by thousands of servers in large-scale Internet data centers. As Internet data centers continue to grow in scale and complexity, it has become a daunting task to monitor and manage thousands of servers simultaneously. This paper presents...
Compared to the voice service over PSTN, people look forward to a competent voice over IP (VoIP) service. The introduction of the SIP protocol has a profound impact on the VoIP world. Exploiting more SIP proxy servers can raise the service availability. However, how to assure the efficiency and availability of the service by such an improvement becomes a challenging issue. Based on above, we propose...
In order to provide guaranteed services in P2P networks, applications have to be supported by sufficient computing resources, especially bandwidths and storage spaces, which are acquired from the heterogeneous peers. As soliciting peers' resources contribution by giving remunerations imposes an additional cost, the guaranteed services should be provided cost-effectively. In this paper, after defining...
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