摘要
为了对无线局域网的覆盖和容量进行精确地预测与估算,提高无线局域网的整体利用率,提出模拟分解下的无线局域网室内全覆盖通信方法。首先通过网格自适应方法计算出室内中部署AP的基向量和步长生成方向向量,求解AP安装位置的优化模型,并采用逐步消除法对室内AP数量进行优化求解,得到最佳的AP数量。然后通过对AP所有信道的识别,选择与AP信标RSSI最强的相关联,实现网络覆盖的均衡。最后对AP的功率进行控制,采用模拟分解法处理目标函数,通过对所有室内网格点重复覆盖次数的统计,求出网络覆盖冗余程度的函数值。实验结果表明,采用所提方法,在满足AP功率最小的情况下,可以根据用户分布规律对室内AP数量和位置进行有效地规划,实现全覆盖;此外,可以根据情况对部分AP采取休眠的工作机制。
In order to accurately predict and estimate the coverage and capacity of WLAN and improve the overall utilization of WLAN,an indoor full coverage communication method of WLAN under simulation decomposition is proposed.Firstly,the basis vector and step size of AP deployed indoors were calculated by the grid adaptive method,and the direction vector was generated.The optimization model of the AP installation position was solved.The number of indoor AP was optimized by stepwise elimination method to obtain the best number of AP.Then,through the identification of all channels of the AP,the strongest RSSI associated with the AP beacon was selected to realize the equalization of network coverage.Finally,the power of AP was controlled,the objective function was processed by the analog decomposition method,and the function value of network coverage redundancy was obtained through the statistics of repeated coverage times of all indoor grid points.The experimental results show that the proposed method can effectively plan the number and location of indoor APS according to the law of user distribution and realize full coverage under the condition of meeting the minimum AP power;In addition,the working mechanism of dormancy can be adopted for some APS according to the situation.
作者
冀松
刘永立
卞雪梅
JI Song;LIU Yong-li;BIAN Xue-mei(Baoding University of Technology,College of Information Science and Engineering,Baoding Hebei 071000,China;Hebei University,Baoding Hebei 071000,China)
出处
《计算机仿真》
北大核心
2023年第9期396-400,共5页
Computer Simulation
