Pre-allocated MAC Protocol Based on Underwater Acoustic Communication Network

The underwater acoustic channel has the characteristics of large delay and narrow bandwidth, which makes it difficult to directly apply the onshore wireless network communication protocol underwater, and the design of communication protocol that meets the characteristics of underwater acoustic communication is the focus of this study. The MAC protocol is an important part of the underwater acoustic communication network protocol, which stipulates the way nodes access the channel, which directly affects the performance of the underwater acoustic sensor network. Therefore, this paper designs a pre-allocation MAC protocol based on time slot allocation, which trains before time slot allocation through reinforcement learning and distributes the results to network nodes. Simulation results show that compared with the traditional TDMA protocol, the protocol has higher system throughput and more slot utilization, which can effectively improve the performance of underwater acoustic communication network.