Research On Network Routing Algorithm Based On Narrow-band Low Voltage PLC Communication Network

In the existing narrowband low voltage power line carrier distribution network,due to the characteristics of the power line itself,the low voltage power line distribution system can not respond to the network topology in time,resulting in poor network efficiency and poor reliability.Therefore,people are eager to a good dynamic to adapt to the power line time-varying network algorithm to solve the reliability of power line communications,real-time problems.Most of the existing products are still centralized network plan,because the distributed algorithm can be faster and better adapt to the dynamic characteristics of the network,the researchers will be ant colony,fish algorithm into the power line narrowband low-voltage distribution network Routing,but time consuming [39] [40].Based on the analysis of narrowband low voltage power line carrier communication(PLC)technology,channel characteristics and network model,this paper improves and references the new intelligent algorithm to route and reconstruct the power line communication network from centralized dynamic network and distributed dynamic networking Strategy to study,so that the network has a self-healing ability,reliability,and less time-consuming.In the centralized dynamic networking method,the automatic networking of the power line automatic meter reading system is taken as an example,and the routing information based on clustering is used to save the path information obtained by each network into an adjacency matrix.After optimization and multiple networking,the main node uses the frog leap algorithm to solve the routing path and uses the path hops and the success rate to set the path priority curve,which is less time consuming and reduces the overall cost of network reconstruction.System efficiency and reliability.The simulation results show that the algorithm can quickly and effectively obtain the top k optimal path solutions in the adjacency matrix,and the convergence speed is fast.In the latter part of the network can save unnecessary time to spend.In the distributed dynamic networking method,in order to obtain a faster and more reasonable path,it is proposed to improve the state transition function rule on the basis of the general ant colony system algorithm.After the state transition probability function is improved,the path hops are obtained as much as possible And the overall optimization algorithm and the leapfrog optimization algorithm are used to optimize the ant colony search when it is poor.The two optimization algorithms occur mainly for the case where the number of hops is large.Since only a few edge nodes have a large number of hops,the optimization algorithm takes place in the case of optimization of a few edge nodes.The time consumption is small and the savings Valuable channel resources.The simulation results show that the improved algorithm can improve the overall low-voltage grid topology in 5 iterations,and the total hop count and cost of the system are greatly improved compared with the basic ant colony system algorithm.