针对船舶无线网络稳定性较差，易出现负载失衡、信息传输时延高的问题，研究考虑负载和时延的船舶无线网络节点流量控制方法。此方法利用有向图优化船舶无线网络结构与节点分层结构；计算船舶无线网络节点负载占用率与可用率，提取负载均衡的节点通信路径；使用基于RTT的拥塞流量分配算法，以缩短延时为目标，考虑负载和时延的船舶无线网络节点流量控制。实验结果显示：此方法使用后，船舶紧急业务、关键业务、普通业务在无线网络中分组投递率提升，解决了负载失衡问题；紧急业务端到端时延低于100 ms，关键业务与普通业务端到端时延低于1 000 ms，流量控制效果较好。
In response to the problem of poor stability, load imbalance, and high information transmission delay in ship wireless networks, a flow control method for ship wireless network nodes considering load and delay is studied. This method utilizes directed graphs to optimize the wireless network structure and node hierarchy of ships; Calculate the load occupancy rate and availability rate of ship wireless network nodes, and extract the load balanced node communication path; Using RTT based congestion flow allocation algorithm with the goal of reducing latency, to achieve traffic control for ship wireless network nodes considering load and latency. The experimental results show that after using this method, the group delivery rate of ship emergency services, critical services, and ordinary services in the wireless network is improved, solving the problem of load imbalance; The end-to-end latency for emergency services is less than 100 ms, while the end-to-end latency for critical and regular services is less than 1 000 ms, resulting in better traffic control effects.
2024,46(7): 128-131 收稿日期：2023-12-19
DOI：10.3404/j.issn.1672-7649.2024.07.021
分类号：TP393
作者简介：黄清(1981-),男,本科,实验师,研究方向为计算机网络、网络安全
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