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Virtual machine placement (VMP) is the assignment of virtual machines (VMs) to physical hosts (PHs). In this paper, we apply a glowworm swarm optimisation (GSO) algorithm to solve the VMP problem so that the energy consumption, the service level agreement (SLA) violation are minimised. Simulation results show that GSO based VMP algorithm outperforms many of the common VMP algorithms.
This letter focuses on an energy-efficient hybrid spectrum access scheme in a vehicle-to-infrastructure uplink communication scenario in cognitive vehicular ad hoc networks (cognitive VANETs). Considering path loss exponent of the channel between a vehicle and an access point, a constrained optimization problem is formulated to minimize the overall energy consumption. Meanwhile, the quality of service...
The IEEE 802.16e is a compatible and reasonable technology to solve the last mile access problem. Since the multiple services in the system are connection-oriented, it is crucial to provide effective admission control and resource allocation mechanisms to guarantee the quality of service (QoS) of the system. In this paper, we investigate the joint bandwidth reservation and admission control in the...
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