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Cognitive radio network is expected to solve the spectrum scarcity by enabling unlicensed secondary users (SUs) to opportunistically utilize the licensed spectrum unused by primary users (PUs). In this paper, we propose an optimal admission control scheme which maximizes the profit while guaranteeing QoS of the PUs. The profit maximization problem is formulated as a Semi-Markov Decision Process (SMDP)...
This paper considers optimizing the utilization of radio resources in a heterogeneous networks consisting of a WLAN and a CDMA network. We propose a joint admission control mechanism for multimedia traffic that exploits vertical handoff as an effective tool to enhance radio resource management while guaranteeing handoff user's QoS requirements. The network resources utilized by the vertical handoff...
Quality of service (QoS) in wireless sensor network (WSN) presents a great challenge to researchers, and work in this area has been isolated and focused on some specific protocol layers or application scenarios. In this paper, we propose a holistic QoS model to evaluate the performance of WSN. QoS requirements within a WSN reference architecture is presented, and then a two-way mapping between application...
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