Research On WSN Reliable Routing For Distribution Communication Network

As the goal and direction of modern power grid construction,the realization of smart grid is inseparable from the modern distribution communication network.Traditional communication network can not meet the needs of diversified power communication services,and Wireless System Network(WSN)has the characteristics of low cost,low power consumption,self-organization,flexibility,reliability and scalability.Its application in smart distribution network is gradually becoming a research hotspot at home and abroad.In order to provide reliable communication support for power grid,it is necessary to use WSN and extend the distribution communication network based on optical fiber and broadband access.It is of great significance to analyze the communication services carried by WSN and study the optimization design of key technology routing protocols in network architecture.Under the above background,this paper introduces WSN routing protocols to solve the key problems for the Qo S requirements of different services in smart distribution communication network.The Qo S of communication service is a basic problem in smart distribution network,which involves node perception information,network transmission quality,energy consumption demand,and network service time.The data routing method which is closely related to the quality of network transmission is responsible for the task of real-time and reliable transmission of business data from the source node to the destination node.Aiming at this problem,this paper studies from three aspects.First,it studies the model establishment based on the distribution communication network environment between the source node and the destination node.Second,it studies the energy optimization problem of the next hop node selection in the path routing.Third,it studies how to combine the service requirements of the distribution communication network with WSN.By studying the routing strategy,the reliability and real-time performance of data transmission can exceed the predetermined specification requirements.The main work is as follows :(1)Studied and analyzed the requirements of smart distribution communication network,the characteristics of the communication service and its Qo S requirements,and analyzed the routing mode selection problem of distribution automation service as a typical application background on this basis,which lays the foundation for the next step to study the routing optimization protocol of wireless sensor network under the background of this application combined with the characteristics of wireless sensor network.(2)To better establish a routing mechanism to guarantee Qo S requirements,the pros of swarm intelligence algorithm in WSN are analyzed,and a single-path routing algorithm for WSN based on improved ant colony algorithm is proposed.The algorithm uses the remaining energy number of candidate nodes to determine the next hop position,so as to solve the problem of pheromone aggregation too fast to achieve global optimization;in the expected heuristic,the distance between adjacent nodes and residual energy are considered.In the pheromone heuristic,the delay and reliability Qo S metrics of distribution network are combined to update the pheromone concentration,and the shortest path is taken as the target for path search.Using the advantages of global optimization and fast convergence,the simulation results show that the obtained solution has good performance in ensuring the energy consumption,delay and reliability of WSN in intelligent distribution network.(3)In order to meet the large-scale distribution network environment’demand and further optimize the Qo S of distribution communication network,the advantages of multipath routing algorithm are analyzed,and an ant colony multipath routing algorithm based on DBSACAN clustering is proposed.Determine the number of clusters in the neighborhood radius clustering results,and the minimum number of nodes where the element becomes the core point,and find the core point in the whole node range until traversing the whole data set;the multi-path tree is generated in the inter-cluster routing stage,and the direction factor is added to help determine the position of the next hop of the ant,and the mutation operator is introduced to increase the diversity of the population.The optimal path is selected by using the path cost function combining energy consumption,delay,packet loss rate and load balancing.The simulation results show that the algorithm can better balance network energy consumption while meeting the Qo S requirements of distribution network communication.The work of this paper focuses on the routing optimization problem of WSN for smart distribution network.According to the service Qo S requirements of smart distribution communication network under different application backgrounds,a targeted routing optimization protocol is proposed,and the effectiveness of the protocol is verified by simulation experiments.v...