A Study On The Survival Period Of Marine Emergency Rescue Ad Hoc Network Based On I-LEACH

Marine activities are becoming more and more frequent,resulting in a constant occurrence of maritime accidents.Therefore,when a marine accident occurs,it is particularly important to choose a fast and reliable communication transmission method for marine emergency rescue.However,the stability of communication transmission in offshore operations is greatly affected by the environment.The traditional wired communication and fixed base station wireless communication are not suitable for emergency rescue under complex conditions.Compared with terrestrial communications,the wireless network node of maritime emergency communication has a bad working environment,and the battery reserves are limited.It can be seen that reducing consumption to the greatest extent and effectively prolonging the life cycle of the network are the key points for ensuring emergency communications.In this paper,the information collected by wireless nodes is transmitted in the form of flexible multi-hop to improve the reliability of communication.On the basis of wireless ad hoc networks(Ad Hoc),clustering algorithms are adopted to fully and reasonably to use network energy.It is expected to improve the transmission quality and life cycle of wireless ad hoc network,and provides reliable communication for maritime emergency rescue.The wireless ad hoc multi-hop network in this design is composed of ad hoc network nodes,communication infrastructure and other advanced technologies.In the case of no base station,each ad hoc network node uses ZigBee wireless communication to form a wireless ad hoc network.First,the optimal LEACH clustering algorithm is used to reduce the energy consumption of the node,allow related nodes to effectively cluster,and extend the network life cycle.Secondly,it is improved based on the LEACH clustering algorithm,and the improved I-LEACH clustering algorithm is formed by optimizing the selection of cluster head on the distribution of node location and energy consumption.Finally,an experimental simulation is carried out on the three aspects of network energy consumption,node survival rate,and data transmission volume of the clustering algorithm.The simulation results verify the rationality and effectiveness of I-LEACH clustering algorithm.