基于垂直光波束选择的可见光通信物理层安全表现增强方法  

Security performance enhancement method of visible light communication physical layer based on vertical beam selection

作　　者：丁举鹏 易芝玲 赵楷[1] 王丽丽[3] DING Jupeng;I Chih-Lin;ZHAO Kai;WANG Lili(School of Information Science and Engineering,Xinjiang University,Urumqi 830046,China;China Mobile Research Institute,Beijing 100053,China;School of Information and Electrical Engineering,Ludong University,Yantai Shandong 264025,China)

机构地区：[1]新疆大学信息科学与工程学院,乌鲁木齐830046 [2]中国移动通信有限公司研究院,北京100053 [3]鲁东大学信息与电气工程学院,山东烟台264025

出　　处：《光通信技术》2022年第6期29-34,共6页Optical Communication Technology

基　　金：国家自然科学基金项目(62061043)资助;新疆维吾尔自治区自然科学基金面上项目(2019D01C020)资助;新疆维吾尔自治区全职引进高层次创新人才项目(042419004)资助;新疆维吾尔自治区天山雪松计划项目(2020XS27)资助。

摘　　要：为改善可见光链路的保密传输表现,在分析静态、动态光波束配置下的链路保密容量的基础上,提出了基于动态垂直非朗伯光波束选择的可见光通信物理层安全表现增强方法,即根据不同的发射器、保密用户及窃听者位置关系动态地选择垂直候选光波束。量化结果显示:在典型室内环境下,相比传统静态朗伯光波束配置,基于动态垂直非朗伯光波束配置的平均保密容量增益高达3.03 b·s^(-1)·Hz^(-1),增益比例高达86%。In order to improve the secrecy transmission performance of visible light link,based on the analysis of link secrecy capacity under static and dynamic optical beam configurations,a security performance enhancement method of visible light communication physical layer based on dynamic vertical non-Lambertian beam is proposed,which selects the vertical candidate beam dynamically according to the different emitter,secrecy user and position relationship of eavesdropper.Quantization results show that,in a typical indoor environment,compared to a conventional static Lambertian beam configuration,the average secrecy capacity gain based on dynamic vertical non-Lambertian beam configuration is up to 3.03 b·s^(-1)·Hz^(-1),and the gain ratio is up to 86%.

关 键 词：物理层安全 可见光通信链路 光波束选择 保密容量 非朗伯波束 

分 类 号：TN919[电子电信—通信与信息系统]