Underwater acoustic channel is characterized with narrow band width and long propagation delay

to reduce channel conflict effectively

MAC protocol with channel reservation mechanism becomes the optimum choice for underwater sensor networks. Through analyzing process of exchange of RTS-CTS control packets based on node of MAC protocol with channel reservation mechanism in high loading network conditions under which multiple node pairs can get right to use channel at the same time; design a MAC protocol under which many node pairs can realize data transmissions in sequence without collision after a RTS-CTS handshaking. Finally

performance of protocol is verified through simulation

result shows that this protocol has higher throughput and lower network delay.