基于边缘计算的水下激光通信弱光信号检测方法  

Low light signal detection method of underwater laser communication based on edge computing

作　　者：王菲 关云静 WANG Fei;GUAN Yunjing(Zhongxing Communication College of Xi’an Traffic Engineering Institute,Xi’an 710300,China)

机构地区：[1]西安交通工程学院中兴通信学院,西安710300

出　　处：《激光杂志》2024年第10期175-179,共5页Laser Journal

基　　金：陕西省教育厅科研计划项目(No.20JK0745);西安交通工程学院2022年度中青年基金项目(No.22KY-58)。

摘　　要：为了降低激光通信弱光信号检测的误码率,提出基于边缘计算的水下激光通信弱光信号检测方法。采用边缘网关内配置管理服务,依据云端配置服务器下发的配置信息,设置数据采集服务与边缘计算服务功能的配置参数;利用网关内数据采集服务,采集水下激光通信系统发射的通信信号,并上传至数据服务器内;网关内边缘计算服务依据势博弈的多用户计算卸载策略,卸载激光通信信号采集传输时的边缘计算任务,加快激光通信信号采集传输效率;通过云平台调用数据服务器内存储的激光通信信号,利用双稳态随机共振法,检测激光通信弱光信号。实验证明:该方法可有效采集激光通信信号,完成边缘计算任务卸载;该方法可有效检测激光通信弱光信号;在不同信噪比与不同通信链路长度时,该方法弱光信号检测的误码率均较低。In order to reduce the bit error rate of weak light signal detection in laser communication,an underwater weak light signal detection method based on edge computing was proposed.The configuration management service in the edge gateway is used to set the configuration parameters of data collection service and edge computing service functions according to the configuration information issued by the cloud configuration server;Utilize data collection services within the gateway to collect communication signals emitted by underwater laser communication systems and upload them to the data server;The edge computing service in the gateway unloads the edge computing task during the acquisition and transmission of laser communication signals according to the multi-user computing unloading strategy of potential game,and speeds up the efficiency of laser communication signal acquisition and transmission;By calling the laser communication signals stored in the data server through the cloud platform,the bistable stochastic resonance method is used to detect weak laser communication signals.Experiments show that this method can effectively collect laser communication signals and complete the task unloading of edge computing;This method can effectively detect weak light signals in laser communication;At different signal-to-noise ratios and communication link lengths,the error rate of weak light signal detection using this method is relatively low.

关 键 词：边缘计算 水下激光通信 弱光信号检测 数据采集服务 势博弈 随机共振 

分 类 号：TN929.1[电子电信—通信与信息系统]