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Because of user mobility, highly dynamic, error-prone wireless channels, the QoS control for mobile Peer-to-Peer (MP2P) streaming media has to face considerable challenges. Given to the advantages of policy management, we develop a policy-based QoS control (PBQC) architecture to provide QoS assurance dynamically and automatically in mobile network environment. And we also propose a MP2P streaming...
A retrial queue with general retrial times, a modified vacation policy and server breakdowns is investigated in this paper. We study the embedded Markov chain underlying the considered queueing system and its stable condition. By applying the supplementary variable technique, some analytical results for the system size distribution as well as some other performance measures of the system are derived...
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