基于短波通信协议的分段帧长研究

Research on segmented frame length based on HF communication protocol

通过对短波通信协议的研究,数据传输子层中的分段帧长对系统的传输性能存在一定的影响。为此,选择合适的分段帧长进行数据传输是需要解决的问题。首先,分析数据传输子层数据帧的结构和分段帧的分段过程,再根据系统平均有效吞吐率表达式建立仿真模型。通过采用包含不同分段帧长的数据帧进行数据传输,对比不同分段帧长产生的吞吐率,得到最佳分段帧长。仿真结果表明,在一定条件下,最佳分段帧长可以获得更高的有效吞吐率。

It is found by the study of HF communication protocol that the segmented frame length in the data transfer sublayer has a certain impact on the transmission performance of the system.Therefore,selecting the appropriate segmented frame length for data transmission is a way to solve the problem.In this paper,the structure of data frame in the data transfer sublayer and the segmentation process of the segmented frame are analyzed,and then the simulation model is established according to the average effective throughput expression of a system.By using data frames containing different segmented frame lengths for data transmission,the throughput rates of different segmented frame lengths are compared to obtain the optimal segmented frame length.The simulation results show that,under certain conditions,the optimal segmentation frame length can achieve higher effective throughput.