Abstract:In order to obtain higher network throughput and lower end-to-end delay, this page designs a MAC protocol which suits cluster network called a receiver-initiated MAC protocol based node state for underwater acoustic sensor networks(RINS), this protocol based on receiver reservation can effectively obtain neighbors' state and dynamically allocate time slot. This protocol can realize data packets arriving at receiver in the way of packet train. The simulation results show that comparing to FERI and RIPT, the RINS can improve network throughput, reduce data loss ratio and end-to-end delay.