31 An Evolutionary Algorithm for Improvement of QoS of Next Generation Network in Dynamic Environment
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In this paper, we propose an effective evolutionary algorithm for solving the capacitated minimum spanning tree problem in dynamic environment. The purpose is to improve Quality of Service (QoS) of Next Generation Network (NGN) with considering the network provisioning capability and dynamic environment. We formulate this problem with minimizing the communication cost (as a kind of performance measures for NGN's QoS). As we known, this kind of models is NP-complete. We investigate the different encoding, crossover and mutation operators on the performance of EAs to design of MST problems. Based on the performance analysis of these encoding methods in EAs,...