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Thanks to the “on-demand” nature of cloud computing, a large number of applications have been recently migrated to the cloud. To take full advantage of superior connectivities between geo-distributed datacenters, application traffic can be “ferried” through the cloud to provide better service and user experience. However, implementing and deploying such inter-datacenter protocols for various applications,...
It is typical for cloud providers to operate a number of geographically distributed data centers, where inter-data center traffic constitutes a large portion of a cloud provider's traffic demand over the Internet. Though such inter-data center traffic incurs substantial operational costs that are charged by ISPs, it varies significantly across different overlay links, raising the opportunity to optimize...
Wireless sensor networks (WSNs) have received more and more attention on the object tracking system, but the performance of active routing is low. In this paper,we present an novel energy efficient dynamic target tracking (EE-DTT) protocol for wireless sensor network, EE-DTT has three obvious features: firstly, it improves virtual grid ideas to divide each cluster into MtimesN square area and select...
Wireless sensor networks (WSNs) have received more and more attention due to the limited energy of battery-powered nodes, but rarely consider the maximum lifetime and the shortest path at the same time. In this paper, we present an energy-efficient algorithm for maximum lifetime and minimum routing (EE-MLMR) in wireless sensor networks. EE-MLMR improves energy utility by changing the activity of wireless...
In wireless sensor networks, energy-balanced data propagation is crucial to achieving satisfactory network lifetime. This paper presents a probability-based mathematical model to formulate the energy dissipated by data transmission of sensor nodes for arbitrary network topology. The mathematical model summarizes an extensive design space for routing, in which direct transmission and minimum transmission...
One of the most critical issues in wireless sensor networks is represented by the limited availability of energy on network nodes; thus, making good use of energy is necessary to increase network lifetime. In this paper, we present an energy-efficient maximum lifetime (EEML) algorithm in wireless sensor networks. EEML improves energy utility by changing the activity of wireless communication module...
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