摘要
根据认知用户占用信道时长的统计分布和认知用户带宽需求的统计分布,利用随机分布函数和均匀分布的关系,建立了认知用户模拟模型。在MATLAB下,根据某地区通信基站的基本要求,结合认知用户模拟模型,建立了基于图论模型的认知用户仿真模型,可以计算空闲频谱矩阵、分配矩阵、干扰矩阵等图论模型要素。通过MATLAB仿真实验,验证了此模型与实际情况的吻合性。
According to statistical distribution of time length of cognitive user occupying channels and cognitive users＇ bandwidth requirements, utilizing the relationship between the random distribution function and uniform distribution, a cognitive user simulation model is established. Based on the basic requirements of communication base stations in a given area, and combining with cognitive user model, we build a simulation model of cognitive users based on graph theory model, which can calculate leisure spectrum matrix, distribution matrix, interference matrix and other graph theory model elements. This model is verified by MATLAB simulation experiment, the result shows that it accord with the actual situation.
出处
《电子技术（上海）》
2014年第9期34-37,共4页
Electronic Technology
基金
四川省教育厅科研基金资助项目(14ZB0436)
四川师范大学成都学院科研项目(14CSCD-QN-O1
认知无线电仿真模型研究)
关键词
认知用户仿真
概率分布
图论模型
通信基站
cognitive users simulation
probability distribution
graph model
communication base station
