计算机科学 ›› 2019, Vol. 46 ›› Issue (6): 112-117.doi: 10.11896/j.issn.1002-137X.2019.06.016
赵新伟, 刘伟
ZHAO Xin-wei, LIU Wei
摘要: AODV是MANET网络中典型的按需路由协议。针对AODV路由策略的缺陷,提出一种基于节点状态的路由发现和建立策略。通过对MANET网络建模,在路由发现时,利用马尔可夫链预测邻节点的状态,在原有AODV路由策略的基础上,上一跳节点利用AODV路由发现时建立的反向路由获取邻节点的状态信息;在路由建立时,结合邻节点的状态信息,优先选择处于空闲状态和休眠状态的节点作为下一跳路由。仿真结果表明,基于该策略优化的AODV路由协议提高了网络中数据包的投递率,降低了端到端延迟,改善了网络性能。
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