光学学报, 2018, 38 (3): 0306004, 网络出版: 2018-03-20
紫外光移动自组网节点设计及通信性能分析 下载: 784次
Node Design and Analysis of Communication Performance Between Nodes in Ultraviolet Mobile Ad Hoc Networks
光通信 紫外光通信 捕获、对准、跟踪 非直视 optical communications ultraviolet communication acquisition pointing and tracking (APT) non-line-of-sight
摘要
将无线紫外光通信与移动自组网技术相结合, 可以有效扩展无线紫外光通信范围。基于空分复用原理设计一种收发一体的紫外光移动自组网通信节点装置, 给出通信节点间捕获、对准、跟踪(APT)的方法, 仿真分析捕获所需时间与节点转速之间的关系。基于非直视紫外光通信理论, 用蒙特卡罗方法仿真分析设计节点中2节点间通过开关键控(OOK)调制、误码率为10-5时的传输码速率。户外非直视紫外光通信实验结果表明, 实验获得的码速率曲线与仿真结果具有相同的趋势。当发射功率为50 mW、非直视通信的最大偏转角设定为6°、误码率为10-5时, 发射端传输码速率可达1.64×106 Baud·s-1。
Abstract
The combination of wireless ultraviolet (UV) communication and mobile ad hoc network technology can effectively expand communication range of wireless UV communication. Using space division multiplexing, we design a UV mobile ad hoc network communication node transceiver and propose the method of acquisition, pointing, and tracking (APT) among communication nodes. The relationship between the time of acquisition and the speed of the node is simulated and analyzed. Based on the non-line-of-sight (NLOS) UV communication theory,we simulate the transmission rate between the designed two nodes by the Monte Carlo method when the on off keying (OOK) modulation is used and the bit error rate is 10-5 . We do an outdoor NLOS UV communication experiment, and the experimental results show that the code rate curve and the simulation results have the same trend. When the transmit power is 50 mW, the maximum deflection angle of NLOS communication is set to 6°, and the bit error rate is 10-5, the originating code rate can reach 1.64×106 Baud·s-1.
宋鹏, 周显礼, 赵太飞, 李云红, 苏彩霞. 紫外光移动自组网节点设计及通信性能分析[J]. 光学学报, 2018, 38(3): 0306004. Song Peng, Zhou Xianli, Zhao Taifei, Li Yunhong, Su Caixia. Node Design and Analysis of Communication Performance Between Nodes in Ultraviolet Mobile Ad Hoc Networks[J]. Acta Optica Sinica, 2018, 38(3): 0306004.