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为解决四网协同中4G基站选址优化问题,提出了一种基于2G/3G/4G共址的改进免疫算法。首先设计了基于代价、覆盖函数及2G/3G/4G共址代价损失的多目标亲和度函数。然后针对免疫算法效率低的问题,改进了种群初始化方法,并给出算法框架。实验结果表明,该算法能以较低建设成本满足网络的覆盖要求,且算法效率有了明显提高。
In order to solve the problem of 4G base station location optimization in the four-network coordination, an improved immune algorithm based on 2G / 3G / 4G co-location is proposed. Firstly, a multi-objective affinity function based on cost, coverage function and 2G / 3G / 4G co-location cost penalty is designed. Then, in view of the low efficiency of immune algorithm, the method of population initialization is improved and the algorithm framework is given. Experimental results show that the proposed algorithm can meet the network coverage requirements with low construction cost, and the efficiency of the algorithm has been significantly improved.