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3G蜂窝移动通信系统旨在提供多种业务,比如语音业务、数据业务以及基于分组交换网的多媒体业务。为了提供这些业务的服务质量保证,提出了一种优化WCDMA(W ideband Code-D ivision Mu ltip le Access)网络QoS(Quality of Service)的遗传算法(GA:Genetic A lgorithm)。使用该算法,研究了如何实时对WCDMA网络参数进行最优配置,以最大限度地提高使用不同输入通信流量混叠业务用户的满意度。仿真实验结果表明,该算法可以根据混叠输入通信流量动态有效地配置网络参数,以使服务的性能达到最优化:使用GA后,网络的频谱利用率达到18%;GA的收敛速度相当好,例如在假定所有的通信量混和的情况下,经过20~30次的反复后,就可以达到最优的配置参数。
3G cellular mobile communication system is designed to provide a variety of services, such as voice services, data services and packet-based switched network multimedia services. In order to provide QoS guarantees for these services, a Genetic Algorithm (GA) is proposed to optimize the quality of service (WCDMA) network. Using this algorithm, we study how to optimally configure WCDMA network parameters in real time so as to maximize the satisfaction of users using different input traffic alias services. The simulation results show that the proposed algorithm can dynamically and efficiently configure the network parameters according to the alias input traffic in order to optimize the performance of the service: After using GA, the spectrum utilization rate of the network reaches 18%; the convergence speed of GA is quite good, For example, assuming that all the traffic is mixed, after 20 to 30 iterations, the optimal configuration parameters can be achieved.