Abstract: Aiming at the environment of large-scale and high dynamic Mobile Ad Hoc Networks(MANET), this paper proposes a Proxy-based Internet Gateway Discovery mechanism(PGDIS). In PGDIS, proxy gateways are elected from mobile nodes automatically, and receive advertisement messages from the Internet gateway periodically. Each mobile node is able to establish the route to the Internet gateway through its nearest proxy gateway. Simulation results show that PGDIS can reduce packet transmission delay while keeping relatively high packet delivery ratio.

Key words: Mobile Ad Hoc Networks(MANET), Internet gateway, gateway discovery

摘要： 针对大规模、高动态的移动Ad Hoc网络环境，提出一种基于代理的Internet网关发现机制(PGDIS)。PGDIS从移动节点中自动选举出代理网关，由Internet网关周期性地向代理网关发送网关公告消息。移动节点可以通过最近的代理网关建立通往Internet网关的路由。仿真结果表明，PGDIS在保持较高数据包投递率的前提下降低了传输延时。

关键词: 移动Ad Hoc网络, Internet网关, 网关发现

CLC Number: 

• TP393.07