舰船异构无线网络的自适应业务网关设计

Design of the adaptive service gateway for Heterogeneous Wireless Networks on ships

针对舰船异构无线网络难以实现互联互通、网络资源利用率低的问题,文中设计了一种用于舰船异构无线网络的自适应业务网关。网关包括业务接口模块、网络接口模块、数据转发模块和网络接入选择模块四部分,其中网络接入选择算法作为网关的关键,负责为具有不同特性的业务自适应匹配最佳网络接入。文中提出了一种混合型网络接入选择算法用于自适应业务网关,算法综合单一网络接入和多网并行传输的网络接入选择算法,根据业务带宽需求灵活选择算法,为业务匹配最佳网络。仿真结果表明,相比于传统算法,该算法的业务选网成功率和业务满意率均有一定程度的提升。

In view of the problems of difficult interconnection and low utilization of network resources in heterogeneous wireless networks on ships,this paper designed an adaptive service gateway for heterogeneous wireless networks on ships.The gateway consisted of four parts:a service interface module,a network interface module,a data for-warding module and a network access selection module.The network access selection algorithm was the key of the gateway,which was responsible for adaptively matching the optimal network for services with different characteristics.This paper proposed a hybrid network access selection algorithm for the adaptive service gateway,which combined a single network access selection algorithm and a multi-network parallel transmission network access selection algorithm,flexibly selected algorithm according to the services’bandwidth requirement for matching the optimal network for services.The simulation results showed that,compared with traditional algorithms,the network selection success rate and service satisfaction rate of the algorithm have both been improved to a certain extent.