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In recent years, Dynamic spectrum leasing (DSL) strategies are studied as a new paradigm for dynamic spectrum sharing (DSS) in cognitive radio networks (CRN's). In traditional spectrum leasing model, the cooperative Secondary Users (SUs) use higher power to transmit their own packets but a lower power to relay the packets of primary user. On the other hand, many existing research work can be characterized...
Due to the mobility of nodes, link failures, dynamic topology, as well as limited energy and bandwidth of the nodes, recovery strategies for service composition have caused a widespread concern in dynamic network. Different from rollback mechanism of post service composition interruption, Backup Service Replacement Strategy (BSRS) can accelerate the service repair process. In this paper, we propose...
In this paper, a novel dynamic task scheduling algorithm is proposed for parallel applications modeled in Kahn process networks (KPN) running in a distributed multi-processor cluster. Static job scheduling algorithms do not work for the purpose for that the complexity of a KPN model remains unpredictable at compile time. Dynamic load balancing strategies ignore the explicit data dependences among...
The grid technology enables large-scale sharing and collaboration use of networked resource. Using P2P technology, grid system can have better scalability and dynamic. OGSA (open grid service architecture) provides a framework for integrating P2P technology into grid system. However, grid resource aggregation is a key issue for P2P grid. In this paper, ant-based resource aggregation algorithm is proposed...
The grid technology enables large-scale sharing and collaboration use of networked resource. Using P2P technology, grid system can have better scalability and dynamic. OGSA provides a framework for integrating P2P technology into grid system. However, grid resource discovery is a key issue for P2P grid. In this paper, a novel model based on P2P technology, is proposed to discovery grid resource efficiently...
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