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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。
Aiming at the problem of limited transmit power of light source device in UV communication and serious transmission loss due to atmospheric channel attenuation, an anti-jamming relay link method for non-direct-view communication is proposed. In this method, a multi-hop network is used to construct a relay communication link between end-to-end transmission nodes. TDM is used to allocate different time slots to adjacent nodes to prevent mutual interference of nodes. In the meantime, information is directly transmitted to and used by nodes Following the link method relay forwarding information two different ways of power requirements were analyzed. The simulation results show that the proposed method can reduce the transmission power and total system power of a single node when transmitting the same communication distance, improve the system power utilization and facilitate the implementation of node deployment with light weight and low power consumption.