Trust Routing Mechanism Of Wireless Sensor Networks Based On Ant Colony Algorithm

A lightweight wireless sensor network Security Mechanism(ACSTM)is proposed for wireless sensor network due to the limited energy of nodes and the weak Security caused by the bad deployment environment,which is applied to the improved Ant Colony Security Trust Mechanism for network routing.The mechanism mainly has two aspects: one is to establish a complete trust evaluation between sensor nodes,including direct behavioral trust,recommendation behavioral trust,interaction incentive factor and energy trust from two dimensions of behavior and energy.On the other hand,the original ant colony algorithm is improved,mainly involving the improvement of state transfer strategy,pheromone update and volatilization strategy,direction search strategy,etc.,and the trust evaluation is introduced into the ant colony routing strategy as an important heuristic factor,in order to improve the efficiency of the network,balance the energy consumption of nodes,and improve the security of the network.Compared with traditional ant colony routing,this mechanism can avoid local optimal solution and solve the problem of premature algorithm stagnation.This mechanism fully considers the characteristics of wireless sensor networks,and establishes a complete trust routing mechanism based on its energy consumption model and communication model.Theoretical analysis and simulation experiments show that ACSTM mechanism can effectively defend against typical network attacks,eliminate network spoofing and improve network security.More importantly,the improved ant colony algorithm can guarantee the overall high accuracy and security even if the network node has a certain error rate,and the improved ant colony algorithm performs well in the energy balance of the node,which improves the life cycle of the network and is suitable for wireless sensor networks.