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In this paper, we concentrate on introducing an optimized energy detection approach applied to cognitive MIMO. Firstly, the system with multiple secondary users is modeled and then the weighting factor of each secondary user is calculated and analyzed. Under the constraint that the quadratic sum of combination factors is unit, the optimal weighting factors of secondary users sharing some certain spectrum...
The Web service composition is one of the most important ways to satisfy the users' personalized requirements and supply the high quality service for users, and the foundation of service composition is the selection of Web service. Firstly, expounded the basic principle of Ant Colony Algorithm and analyzed the model of Web service selection and brought the algorithm into the fields of Web service...
A novel multi-objective optimization based particle swarm optimization algorithm is presented to solve the global optimization problem for based services selecting in Web services composition technology. This algorithm takes Web services selection as a multi-objective constrained optimization problem with constraints. It introduces multi-objective PSO intelligent theory to optimize multi parameters...
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