电信科学 ›› 2016, Vol. 32 ›› Issue (3): 147-152.doi: 10.11959/j.issn.1000-0801.2016082

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基于遗传算法的PCI分配方案

李盼星,王静   

  1. 中国通信建设集团设计院有限公司第一分公司,河北 保定 071000
  • 出版日期:2016-03-20 发布日期:2016-03-28

PCI planning method based on genetic algorithm in LTE network

Panxing LI,Jing WANG   

  1. The First Branch of China International Telecommunication Construction Group Design Institute Co.,Ltd.,Baoding 071000,China
  • Online:2016-03-20 Published:2016-03-28

摘要:

针对传统人工 PCI 规划全局性差和耗时耗力的问题,提出一种基于遗传算法的 PCI 分配方法(GA-PCIAS),该方法考虑了PCI 规划不冲突、不混淆的原则,并且通过将干扰矩阵引入适应度函数可降低规划区域内的干扰程度,某密集市区的仿真实验证明,基站规模较小时,该算法相对于PCI顺序规划方案可有效降低规划区域的干扰程度。

关键词: 物理小区标识, 遗传算法, LTE

Abstract:

In order to avoid local optimum and the consumption on time and strength in traditional manual planning,an method of PCI planning based on genetic algorithm(GA-PCIAS)was proposed,the method took full consideration of the PCI planning principle,and the interference matrix was introduced to fitness function to reduce the interference in planned area.The simulation results in an dense area show that GA-PCIAS can improve RS-SINR (reference signal-signal to interference plus noise ratio)comparing with the classical sequential PCI allocation on small-scale base station.

Key words: physical cell identity, genetic algorithm, LTE

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