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A solution is urgently expected to meet the higher-quality service requirements of various applications on the limited bandwidth of wireless networks. Based on the ideas of dynamic load adaptation and priority-based service, this paper presents a new analysis model of MAC protocol of wireless communication network with reference to the solutions presented recently to IEEE 802.11 PCF, making possible...
Polling systems are widely used in communication systems and computer networks. The discrete-time asymmetric two-tier exhausting and gated polling system is proposed in the paper. On the basis of embedded Markov chain and generating function, mean queuing delay derivative characteristics has been obtained. By use of mathematics analysis and computer simulations, we have analyzed the system performances...
An efficient polling system with M-gated services is considered. The system consists of N stations, the packets of the station have been provided with M-gated services in continuous time. By the embedded Markov chain theory and the probability generating function method, we derived the closed form expressions for the mean queue length, the mean cyclic period characteristics of the system, and the...
The use of network-based streaming applications such as YouTube and BBC iPlayer is rapidly increasing. These applications consume data at very high rates and so quality- of-service (QoS) support is necessary to ensure that they do not stall. Since the access pattern of streaming applications is highly sequential, prefetching can be employed to improve overall performance. For network access, clustering...
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