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In this paper, we propose a novel end-to-end QoS guaranteed approach in Cognitive Mobile Ad hoc Networks (MANETs). A "black box" concept is adopted in our approach. End-to-end QoS condition is reflected by some typical QoS parameters, QoS guaranteed is implemented by the adjustments of the tunable parameters in protocol stack and the complex mechanism inside MANETs is transparent to applications...
In a virtualized environment, all the resource are managed by a virtual machine monitor (VMM). Virtualization technology creates separate, isolated and secure running environments for operating systems, programs or applications respectively. As the rapid development of hardware, the computing resource becomes abundant, which is a great chance for virtualization to extend its utilization, besides the...
In the wireless sensor networks (WSNs), severe energy constraint necessitates energy-efficient protocols to fulfill application objectives. In this paper, we propose a novel cross-layer energy-efficient protocol-CLEEP, which adopts cross-layer strategy that considers physical layer, MAC layer, and network layer jointly. In the physical layer, we first coordinate the transmission power between two...
Mobile Ad Hoc Networks have inherently dynamic topologies. Due to the distributed, multi-hop nature of these networks, random mobility of nodes affects not only the availability of radio links between particular node pairs, but also impedes the reliability of communication paths. Therefore, to optimize the performance of existing network protocols, it is important to be able to give an accurate prediction...
The demand for global mobile communications calls the research and development of the satellite constellation networks. But protocol simulation of satellite networks is hard to realize due to the difficulty of satellite networks modeling. Currently protocol simulation system can't support satellite constellation networks fully. To improve the dependability and availability of the simulation system,...
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