紫外光非直视通信抗干扰中继链路方法及其功率需求分析

针对紫外光通信中光源器件发射功率受限和大气信道衰减严重造成传输距离近的问题，提出一种用于非直视通信的抗干扰中继链路方法。该方法采用多跳网络方式在端到端传送节点间构建中继通信链路，通过时分复用技术给相邻节点分配不同时隙防止节点的相互干扰；同时，对节点直接传送信息和采用中继链路方法接力转发信息两种不同方式的功率需求进行了分析。仿真表明，采用的中继链路方法在传输相同通信距离时减少了单个节点的发射功率及系统总功率，提高了系统功率利用率，有利于重量轻、低功耗需求的节点部署实施。

Abstract

To address the short distance transmission problem of ultraviolet communication for the power restriction with optical source device and the severe attenuation with atmospheric channel, an anti-interference relayed link method for ultraviolet non-line-of-sight communication is proposed. The relayed communication link is built in the transmission node from end point to end point by adopting multihop network mode structure, and the time division multiplexing technology is used to avoid possible interference from neighboring nodes distributed the different slots. At the same time, the power requirements of different communication styles both direct transmission information and relayed link retransmission information are analysed. The simulation analysis indicates that this method can decrease power for not only single node but also the system in the same transmission range, so the power utilization ratio is raised. Light weight nodes with low power consumption are shown to be feasible to implement and deploy.

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李济波, 吴晓军, 王红星, 李笔锋, 刘传辉. 紫外光非直视通信抗干扰中继链路方法及其功率需求分析[J]. 激光与光电子学进展, 2015, 52(3): 030601. Li Jibo, Wu Xiaojun, Wang Hongxing, Li Bifeng, Liu Chuanhui. Anti-Interference Relayed Link Method and Power Requirement Analysis for Ultraviolet Non-Line-of-Sight Communication[J]. Laser & Optoelectronics Progress, 2015, 52(3): 030601.

紫外光非直视通信抗干扰中继链路方法及其功率需求分析

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