Research On Coverage Optimization Of Wireless Sensor Network With Equilibrium Energy Balance Characteristics

As a kind of self-organizing network with limited energy,wireless sensor networks are generally deployed in harsh environments or inaccessible areas.Unbalanced energy consumption of nodes will lead to premature failure of the network,low energy utilization rate of nodes and low network coverage,which seriously affects network performance.Therefore,it is of great significance to study the coverage control algorithm of wireless sensor networks with balanced energy.The specific research contents of this paper are as follows:To extend the life cycle and balance the energy consumption of network,analyses are made in this paper.Firstly,considering the factors affecting the life cycle of the network,the energy consumption of the network is different in different working states.The latter working state is only related to the current state,and the transition probabilities between them are different.According to this characteristic,the node energy consumption model is constructed using the semi-Markov chain algorithm.Then,a scale-free weighted wireless sensor network model with energy balance characteristics is constructed by using the two factors of node energy consumption and load.Finally,the validity of the algorithm in prolonging the network life cycle and balancing the network energy consumption is verified by experimental simulation.In order to improve the energy utilization of nodes in the network,and make the network achieve better coverage.Firstly,the game problems of energy consumption and network coverage in wireless sensor networks are considered comprehensively.Then,we use non-cooperative game theory to construct the income function between node coverage and residual energy,and verify the existence of Nash equilibrium.Finally,the existence of Nash equilibrium and the effectiveness of the algorithm in optimizing network life cycle and network coverage are verified by simulation.The optimized network coverage algorithm with energy consumption balance characteristics is applied to vehicle ad hoc networks.Firstly,considering the problems existing in network coverage and network stability of vehicle ad hoc networks,the working characteristics of vehicle ad-hoc networks are analyzed.Then,by introducing regular mobile nodes,a new network topology model is constructed.According to the time evolution graph theory,the dynamic network structure is described as a continuous "static" topology changing with time.Finally,the effectiveness of the algorithm in terms of network energy consumption,network coverage and network stability are verified by experimental simulation.