Research On Clustering Protocol In Mobile Ad Hoc Networks

With the rapid development of mobility applications for wireless sensor networks,Ad hoc networks have been widely used in wireless sensor networks,drone networks,and robot networks.However,the mobility of the network also brings about problems related to energy consumption and stability.The dynamic topology of mobile Ad hoc networks poses certain challenges for clustered routing protocols.Based on the previous research in wireless sensor networks,this paper further analyzes the mobile models of mobile Ad hoc networks,and explored a new clustering routing optimization method.Firstly,this paper analyses the entity and group mobility models,and proposes an improved LEACH protocol based on fuzzy inference system(LEACH-FIS)for the characteristics of mobile models.The algorithm considers the residual energy,density,the change degree of speed and direction of the nodes,and it determines the cluster head set of the network through multiple variables,dividing the network into different clusters.Node trust model is added to distinguish the nodes of different groups to adapt to group mobility models.The simulation results show that compared with LEACH-M,LEACH-ME and MBC,LEACH-FIS reduces network energy consumption and prolongs network lifetime under different mobile models.Aiming at the stability of links in mobile Ad hoc networks,a fuzzy C-means clustering algorithm for ring routing model(FCMCRR)based on radius partition is proposed in this paper.In the clustering stage,the node density and distance factor are introduced into the traditional fuzzy C-means clustering algorithm to avoid the algorithm from falling into local optimum.In this paper,a ring model is introduced to discuss the different routing situations in the network.By calculating the link state between nodes,using the member nodes after clustering as relays,the communication links between cluster heads are connected,and the stable optimal routing is established.The simulation results show that compared with HEED,ERTLD and LBR,FCMCRR increases data packet transmission rate and reduces network delay.The protocol proposed in this paper still has some shortcomings.Follow-up research is needed to improve the universality of the algorithm in different mobile models,considering the differences of environment and nodes in wireless sensor networks,to improve the robustness of the algorithm in different networks,and further improve the clustering routing protocol.