基于动态信标和负载均衡的manet地理路由

Anju Sara Varghese, S. Jebakumari
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引用次数: 1

摘要

动态拓扑变化是移动自组织网络(manet)的特征之一,其中节点移动非常频繁。在自组织路由协议中,地理路由协议由于其转发决策仅基于本地拓扑结构,近年来备受关注。定期广播信标包是一种广泛使用的保持邻居位置的方法;但由于它的周期性,它在路由性能和位置更新成本方面并不令人印象深刻。负载不平衡是影响路由性能的另一个问题。贪婪周边无状态路由(Greedy Perimeter Stateless Routing, GPSR)是现有的地理协议,它被修改为LB-DB-GPSR(Load balance - dynamic Beaconing GPSR),以适应网络中节点的移动性和流量模式,并在网络中实现更好的负载平衡。仿真结果表明,所提出的协议在分组投递率、端到端延迟和拥塞控制等方面都能显著提高路由性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic beacon based and load balanced geo routing in MANETs
Dynamic topology changes are one of the characteristics of Mobile Ad hoc Networks (MANETs) where nodes move very frequently. Among ad-hoc routing protocols, Geographic routing protocols have drawn a lot of attentions in recent years due to its forwarding decision based only on local topology. Periodic broadcasting of beacon packets is a widely used method to maintain neighbor locations; but it is not impressive with respect to both routing performance and location update cost due to its periodic nature. Load unbalance is another issue which hampers the routing performance. Existing well known geographic protocol, Greedy Perimeter Stateless Routing (GPSR) is modified as LB-DB-GPSR(Load Balanced-Dynamic Beaconing GPSR), to adapt beaconing with respect to node mobility and traffic patterns in the network as well as to achieve a better Load balancing in the network. The simulation results show that the proposed protocol can significantly improve the routing performance in terms of packet delivery ratio, end to end delay and congestion control.
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