Shi Chun, Huang Zijian, Li Huiping, Cai Yinbin, Du Cuifeng
School of Electronic and Information, Guangdong Polytechnic Normal University, Guangzhou, 510633, P.R. China.
Sangfor Technologies Inc, Shenzhen, 518000, P.R. China.
Sci Rep. 2024 Dec 28;14(1):31511. doi: 10.1038/s41598-024-83216-7.
In recent years, the hydroacoustic communication MAC (Medium Access Control) protocol has attracted wide attention. Hydroacoustic communication networks suffer from issues such as long propagation delays and rapid dynamic changes in network load, which prevent the maximization of network performance through the use of a single transmission mode. In this paper, we propose a Dynamic Switching Transmission MAC protocol called the DSTM-MAC protocol. Firstly, the protocol realizes the design of dynamic switching transmission mode by adapting to changes in network load, introduces a more accurate model for total system delay, and computes parameters such as the switching threshold L and the optimal fixed contention window. Secondly, it carries out parameter design for different transmission modes and realizes dynamic concurrent transmission based on these modes, ultimately achieving the goal of maximizing network performance improvement. Finally, experiments demonstrate that the DSTM-MAC protocol surpasses the traditional DCF protocol in terms of end-to-end delay and system throughput.
近年来，水声通信介质访问控制（MAC）协议受到了广泛关注。水声通信网络存在诸如传播延迟长和网络负载快速动态变化等问题，这使得无法通过单一传输模式实现网络性能的最大化。在本文中，我们提出了一种名为DSTM-MAC协议的动态切换传输MAC协议。首先，该协议通过适应网络负载的变化实现动态切换传输模式的设计，引入了一个更精确的总系统延迟模型，并计算诸如切换阈值L和最优固定竞争窗口等参数。其次，它针对不同的传输模式进行参数设计，并基于这些模式实现动态并发传输，最终实现提高网络性能最大化的目标。最后，实验表明，DSTM-MAC协议在端到端延迟和系统吞吐量方面优于传统的DCF协议。
