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Based on the requirement of the transmission of real-time service in wireless sensor networks, the paper studies Weighted Fair Queuing (WFQ) algorithm profoundly. Having analyzed the reason why WFQ can't ensure the quality of real-time service, it proposes P-WFQ, which is a priority-based Weighted Fair Queuing (P-WFQ) algorithm. With sliding windows, P-WFQ combines WFQ and the priority-based mechanism...
Wireless sensor networks are formed by a great deal of sensor nodes, which are generally battery-powered and may not be recharged easily. Consequently, how to save energy is an important issue when designing protocol in wireless sensor network. However, lowering the energy consumption may result in higher latency. To address such a tradeoff, this paper proposes a MAC protocol supported dynamic contention...
Cloud services are charming for vehicular ad hoc network (VANET) users. Advances of wireless networks make access to the Internet from VANETs possible. However, the features of VANETs hinder the delivery of cloud services to VANETs. It is important to find proper Internet gateways to connect the VANET users to the cloud. A cloud-assisted gateway discovery scheme is proposed in this paper. The simulation...
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