Research On Intelligent Dynamic Routing Algorithm Based On Service And Dynamic Characteristic Of Wireless Channel

In addition to the various maritime communication methods defined in the International Maritime Organization(IMO)Convention on the Safety of Life at Sea,more and more commercial wireless communication technologies are also widely used in ship data exchange,which has formed in the ship’s end system Heterogeneous wireless network environment.At present,the offshore heterogeneous wireless network is a complex system involving multiple industries,multiple departments,and cross-regions.At the same time,ship-end users have diverse requirements for wireless network service quality in different business scenarios.Therefore,ships need to be resolved.The communication equipment can choose the wireless communication method with availability,reliability,security and the highest cost performance in data exchange and data collaboration.To this end,this paper first determines the selection model of marine services for the matching relationship between marine communication services and communication systems.Based on the analysis of the switching technology between marine wireless networks,a ship-end intelligent dynamic’ routing algorithm based on the dynamic characteristics of communication services and wireless channels is proposed.The intelligent dynamic routing software system based on the algorithm is designed and implemented.The shipboard intelligent dynamic routing algorithm is divided into three parts:one is to determine the decision weight of business selection based on the shipboard business processing subjective decision algorithm;the second is to calculate the entropy value of the marine candidate wireless network according to the shipboard network processing objective decision algorithm,The objective disorder degree of the non-uniform macro state of the system is estimated;the third is to approximate the positive judgment solution according to the multi-attribute decision algorithm of the ship’s heterogeneous network and calculate the comprehensive weight of each candidate network.For the ship’s intelligent dynamic routing software system,based on the overall system framework design,the core software modules such as the data collection module,data processing module and result feedback module of the ship’s intelligent dynamic routing software system are developed and implemented.Based on this,the availability of intelligent dynamic routing algorithms at the ship’s end was verified and analyzed in depth.The results show that the algorithm can select the optimal communication network for ship users in real time,and give the switching cost between different communication methods to avoid the waste of resources and unpredictable errors caused by unnecessary switching;the research also proves that using this algorithm It can make the heterogeneous communication networks on the ship’s end achieve load balancing,and customize the selection conditions of the ship’s users for specific communication networks through parameter configuration to select the offshore wireless network according to the actual preferences or needs of users or services.In addition,based on the above software system,this paper further designs a complex application scenario containing eight kinds of marine wireless communication networks,and verifies the optimal routing performance of the ship’s intelligent dynamic routing software through five kinds of network attribute data.By adding a certain number of decision points to different service types,the performance of the software is verified,and the feasibility and reliability of the algorithm in the offshore heterogeneous wireless communication network are proved.