应急通信网络要充分发挥功效,必须要有效解决各类网络之间的异构互联问题。本文给出了一种支持异构网络互联的应急通信网络结构,提出了无线自组网基于连接共享接入Internet的方案,详细说明了互联网关选择和允许控制机制,并分析了控制消息开销。
In order to exert the value of emergency communication network fully,heterogeneous interconnection issues among different kinds of networks must be solved effectively.In this paper emergency communication network structure supporting heterogeneous network interconnection is given firstly.And then Internet access scheme based on connection sharing is proposed.Afterwards,interconnecting gateway selection and admission control methods are explained in detail,and overheads of control messages are analyzed.