对移动自组网体系结构的再思考

Rethinking architecture of mobile Ad Hoc networks

移动自组网(MANET)是一组由路由和转发功能的移动节点组成的一个多跳、无中心的临时性自治系统。分析了MA-NET节点结构特点和常用的两种拓扑结构,即平面结构和分级结构。给出了网络体系结构定义,包括描述协议和通信机制的设计准则和实现网络体系结构的方法。报告了Internet体系结构发展过程现状,提出了MANET协议栈一般模型结构及基于MANET的管理平台,总结了对MANET体系结构发展建议,得到了网络体系结构中网络分层是典型的"结构决定功能"的系统科学的基本观点和网络体系结构与需求、技术相关的结论。

Mobile Ad Hoc network （MANET） is a multi-hop and non-center self-organized temporary system composed of mobile nodes with routing and transferring abilities. The features of MANET＇s nodes and topological structures are analyzed. The structures of topology usually used are classified into two types： Flat topology and hierarchical topology. The network architecture is defined, within this definition there are descriptions of those principles for designing protocols and communication mechanism and the method of implementing network architecture. The phylogeny of Internet architecture is shown. The common model of MANET protocol stacks and the management platform based on MANET are also proposed. Suggestions and consults for developing the architecture of MANET are summarized. Finally some conclusions are drawn. One conclusion is that the hierarchy for a network in its architecture is typically the basic viewpoint of system science called ＂the functions depend on the structures＂, and another conclusion is that the network architecture is correlative with the requirements and technique.