摘要
本文针对某无线应急通信系统速率较低、传输可靠性要求高的特点,设计了一种控制信息极少的无线组网方法。该方法采用一级节点接力传输和二级节点中继传输两种模式,保证组网可靠性;设计两套工作频点实现一级节点优先的分级传输,保证快速收敛;通过同步信号来检测冲突,避免产生碰撞;通过接收信噪比实时估算和比较,实现多重报文优选。
In this paper,a kind of wireless networking method with very little control information is designed for a wireless emergency communication system with a low rate,high transmission reliability requirements.In this method,the two transmission modes are used to ensure the reliability of the network by the transmission in turn of the 1st level node and the relay transmission of the 2ndlevel node.And the two sets of frequency points are designed to achieve hierarchical transmission of 1st level node priority,in order to ensure rapid convergence.Conflicts are detected by synchronizing signals in order to avoid collision.Through the real-time estimation and comparison of the received signal to noise ratio,the optimization of multiple message is realized.
出处
《舰船电子工程》
2017年第2期62-65,共4页
Ship Electronic Engineering
关键词
低速率
无线通信
无线组网
low-rate
wireless communication
wireless net
