关键词: 水声网络, MAC层, 随机接入协议, 握手协议

Abstract: MAC protocol in underwater acoustic network decides the ways that nodes share the UWA channel’s property. It affects the utilization ratio of the UWA channel. This paper makes modeling and simulation of the data link layer protocol based on OPNET, compares random access MAC protocol and RTS/CTS approach protocol, and analyzes the performances affected by transmission range of each node, data packet size and network topology. Simulation result shows that comparing to random access protocol, the RTS/CTS approach protocol has the better performances in complex underwater acoustic environment than randan access protocol.

Key words: underwater acoustic network, data link layer, random access protocol, RTS/CTS approach protocol