节点文献
蜂窝系统中一种固定信道分配方法的研究
Research on Fixed Channel Assignment Method in Cellular Systems
【摘要】 信道分配问题属于组合优化中的 NP完备问题 ,为此在遗传算法的基础上提出了一种新的固定信道分配方法 .目标是得到一个用最少的信道数 ,满足话务需求和电磁兼容限制的信道分配方案 .采用了最小间隔编码方案和选择性变异技术 ,利用固定遗传算子 (交叉和变异 ) ,在整个迭代过程中始终满足话务需求的要求 .通过对几个著名的benchmark问题进行的仿真结果表明 ,它对解决信道分配问题是一个非常有效的方法
【Abstract】 The channel assignment problem belongs to the class of NP complete optimization problems, so we propose a new fixed channel assignment approach based on genetic algorithms. The objective is to obtain a channel assignment scheme, which satisfies both the traffic demand requirements and electromagnetic compatibility constraints with the lower bound number of channels. The minimum separation encoding scheme and the selective mutation technique were put forward, the traffic demand requirement can be fulfilled throughout the iterative process using the genetic fix operators (crossover and mutation). The results obtained by the simulation to some well known benchmark problems show that the algorithm we proposed is a better approach for solving the channel assignment problem.
【Key words】 cellular systems; genetic algorithm; channel assignment; selective mutation technique; genetic fix operators;
- 【文献出处】 小型微型计算机系统 ,Mini-micro Systems , 编辑部邮箱 ,2004年08期
- 【分类号】TN929.5
- 【被引频次】22
- 【下载频次】186