【作者】 孙炜；

【导师】 孙献璞；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2007， 硕士

【摘要】 Ad Hoc网络是由一组带有无线收发装置的移动终端节点组成的一个多跳的临时性的自治系统。在这种环境中,由于节点的无线通信覆盖范围的有限性,两个无法直接通信的移动节点可以借助其他节点进行分组转发来进行数据通信。自组网节点之间是通过多跳转发机制进行数据出传输,需要路由协议进行分组转发决策。目前满足移动Ad Hoc网络环境的经典路由协议有AODV协议(Ad hocOn-Demand DistanceVectorRouting)和DSR协议(DynamicSourceRouting)。这两种协议虽然可以满足正常的应用,但是,也存在着诸多的不足,因此提出了很多针对这两种协议的改进方法。本文也是针对经典的DSR和AODV路由协议进行了一些修改,提出了一种新的路由协议――“分段DSR”协议,这种协议是基于传统的DSR和AODV协议,该协议将一次路由中的节点分成普通节点和中转节点,采用分段保存路由的方法进行信息的传输。经过理论分析和仿真验证,该协议在最佳分段跳数下较大幅度地降低了路由维护的开销,并保证了路由的稳定性。更多还原

【Abstract】 Ad hoc network is a temporary distributed network that is formed bya collectionofwirelessmobilenodes withoutanyexistingnetworkinfrastructure. Inthiscondition,due to the finites of wireless communication range, nodes which don’t communicatedirectly can communicate byusing other node to transmit the data packet. Node in AdHoc network transmits data by multi-hop, so we need a routing protocol to determinehowtotransmitthesedatapacket.DSR (Dynamic Source Routing Protocol for Mobile Ad Hoc Networks) andAODV (Ad Hoc On-Demand Distance Vector Routing) are two mature and widelyaccepted routing protocol for Mobile Ad Hoc Networks. Although these two protocolsare widely accepted but they all have some lacks, so there are many improvedmethods.A novel routing protocol for Ad Hoc network-DSR in subsection protocol isproposed in this paper. This protocol is founded on DSR and AODV, in that all pointswhichareina routingaredividedintonormal point andtransferringpoint andthedatais transmitted byusing conserved partial routing. The result of theoretical analysis andsimulation proves that this protocol can reduces the routing spend of Ad Hoc networkinthesamecondition.更多还原