Analysis and Simulation of Slot Collision and Reception Performance of AIS

Time division multiple address and dynamic slot reservation selection method are adopted in automatic identification system (AIS). In the actual communication system, base station and ships can’t know the communication performance like throughput of the whole system. Especially under high data link load condition, the multi-users conflicts may occur, which brings difficulties to the dynamic monitoring of the ships. Therefore, this paper analyses the reception performance of base station especially under the condition of multi-users conflicts in the system. Through computer simulation, the throughput, failed reception ratio and slot wasted ratio of the AIS system can be obtained under different channel load. The results can be used in optimization information broadcasting of base station and optimization the AIS network.