无线光通信网络的最优信道选择方法研究  

Research on optimal channel selection for wireless optical communication networks

作　　者：袁智勇[1] 钟章生[1] YUAN Zhiyong;ZHONG Zhangsheng(Nanchang Institute of Technology,Nanchang 330044,China)

机构地区：[1]南昌理工学院,南昌330044

出　　处：《激光杂志》2021年第11期144-149,共6页Laser Journal

基　　金：江西省教育厅科学技术研究项目(No.GJJ180989)。

摘　　要：研究光通信网络的最优信道选择方法,提升整个次用户无线光通信网络最大归一化吞吐量,降低主用户与次用户间的碰撞率。利用无线光通信网络多用户多信道感知方法感知全部占用的信道,可知延长次用户检测时间,能降低信道感知的虚警概率;以最优次用户检测时间为出发点,利用改进的匈牙利算法为每个次用户各分配一个信道,确保整个次用户无线光通信网络吞吐量最大,实现无线光通信网络的最优信道选择。实验证明:在不同平均信噪比与次用户检测时间等情况下,所研究方法可提升整个次用户无线光通信网络最大归一化吞吐量,降低主用户与次用户间的碰撞率。The optimal channel selection method of wireless communication network is studied to improve the maximum normalized throughput of the whole sub-user wireless optical communication network and reduce the collision rate between the primary user and the sub-user.It can be known that the false alarm probability of the channel perception can be reduced by extending the detection time of the second user by using the multi-user multi-channel perception method of FSO.Taking the optimal detection time as the starting point,the improved Hungarian algorithm is used to allocate one channel for each sub-user to ensure the maximum throughput of the whole sub-user FSO network and realize the optimal channel selection of FSO network.The experimental results show that the proposed method can improve the maximum normalized throughput of the whole sub-user FSO network and reduce the collision rate between primary and secondary users under different mean SNR and sub-user detection time.

关 键 词：无线光 通信网络 最优信道 选择方法 感知 吞吐量 

分 类 号：TN929.1[电子电信—通信与信息系统]