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We study the improved cuckoo search algorithm to promote the capability of spectrum sensing in satellite cognitive systems in this paper. We consider the application scenario of satellite network, which has relatively concise structures and flexible networking modes. The sharable frequency bands are divided into a number of subchannels, and cognitive users should discover unoccupied channels to access...
QoS-aware web service composition intends to maximize the global QoS of a composite service with local and global QoS constraints while selecting the independent candidate services from different providers. With the increasing number of candidate services emerging from the Internet, the network delays often greatly affect the performance of the composite service, which are usually difficult to be...
QoS-aware service composition intends to maximize the global QoS of a composite service while selecting candidate services from different providers with local and global QoS constraints. With more and more candidate services emerging from all over the world, the network delays often greatly impact the performance of the composite service, which are usually not easy to be collected before the composition...
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