Research On Multi Radio And Multi Channel Allocation In Power Distribution Wireless Ad Hoc Networks

In recent years,power distribution automation system has been popularized,and a communication system with good performance is becoming one of its supporting technologies.Wireless ad hoc network because of its multi hop self-organization,wide coverage,flexible service characteristics.It's expected to be an efficient and cheap network architecture for next generation wireless Internet solutions,and it also has a good prospect applications in power distribution systems.But in the practical application,there will be interference between adjacent nodes and links in wireless ad hoc networks,affect the network capacity and end to end throughput.So we will use the technology of multiple radio frequency and multi channel to solve the above problems.If appropriate channels are allocated to all links,inter system interference can be reduced,channel capacity is increased,and the utilization of spectrum resources can be improved.Therefore,this paper will study the channel allocation algorithm in the distribution of electricity wireless ad hoc network,thereby the channel allocation is more reasonable and effectively improves the network performance.The main works of this thesis are as follows:firstly,we introduce the basic concepts of wireless ad hoc networks,the related protocols and three kinds of channel assignment algorithms,which are important for the design and develop the algorithms studied in this thesis.Secondly,based on the actual power distribution scenario,a channel assignment algorithm based on topology control and load grading is proposed,the channel allocation and performance simulation are completed by using the software,and then the performance is compared with the classical algorithm.Thirdly,considering that some power consumption scenarios are too large to overall analysis,a channel assignment algorithm based on grouping balanced load is proposed,in the process of determining the remaining bandwidth of the channel,the channel priority queue determined by the neighbor nodes is added.The channel allocation and performance simulation are also completed by using the software,and then the performance is compared with the classical algorithm.This thesis gives a comprehensive understanding and research on the channel allocation algorithm of power distribution wireless ad hoc networks,which provides useful information for the design and application of power distribution ad hoc networks.