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1 Ad hoc 网络的定义Ad hoc 网是一种多跳的、无中心的、自组织无线网络,又称为多跳网(Multi-hop Network)、无基础设施网(InfrastructurelessNetwork)或自组织网(Self-or-ganizing Network)。整个网络没有固定的基础设施,每个节点都是移动的,并且都能以任意方式动态地保持与其它节点的联系。在这种网络中,由于终端无线覆盖取值范围的有限性,两个无法直接进行通信的用户终端可以借助其它节点进行分组转发。每一个节点同时是一个路由器,它们能完成发现以及维持到其它节点路由的功能。
1 Definition of Ad hoc Network Ad hoc network is a multi-hop, centerless, self-organizing wireless network, also known as Multi-hop Network, Infrastructureless Network or Ad Hoc Network Self-or-ganizing Network). The entire network has no fixed infrastructure, and each node is mobile and can dynamically maintain contact with other nodes in any way. In this kind of network, due to the limited range of wireless coverage of terminals, two user terminals that can not communicate directly can perform packet forwarding by using other nodes. Each node is a router at the same time, they can complete the discovery and maintain routing to other nodes.