基于AODV协议的无线Ad-hoc网络拥塞控制技术研究  

Research on congestion control technology of wireless Ad-hoc network based on AODV protocol

作　　者：傅学磊 左敬龙[2] FU Xue-lei;ZUO Jing-long(Guangdong Preschool Normal College in Maoming,Maoming 525000,Guangdong Province,China;Guangdong University of Petrochemical Technology,Maoming 525000,Guangdong Province,China)

机构地区：[1]广东茂名幼儿师范专科学校,广东茂名525000 [2]广东石油化工学院,广东茂名525000

出　　处：《信息技术》2022年第7期81-86,共6页Information Technology

基　　金：教育部科技发展中心科研创新基金(2018A01023)。

摘　　要：当前无线Ad-hoc网络拥塞控制技术无法准确感知网络拥塞程度,网络慢启动次数较多。为此,提出基于AODV协议的无线Ad-hoc网络拥塞控制技术。MAC层通过链路失败原因有效判断丢包原因;利用AODV协议感知无线Ad-hoc网络拥塞情况;修改AODV协议,利用修改后的AODV协议确定拥塞系数,实现拥塞控制。实验证明:不同节点移动速度下,该研究技术可有效控制无线Ad-hoc网络的拥塞程度,减少平均慢启动次数;提高无线Ad-hoc网络的吞吐率,实现无线Ad-hoc网络的TCP性能的优化。Current wireless Ad-hoc network congestion control technology cannot accurately perceive the degree of network congestion,and slow start of network are widely seen in it.Therefore,the congestion control technology of wireless Ad-hoc network based on AODV protocol is proposed.MAC layer can effectively judge the reason of packet loss by the reason of link failure.The AODV protocol is used to perceive the congestion of wireless Ad-hoc network.AODV protocol is modified and being used to determine the congestion coefficient,and realize congestion control.Experiment results show that the proposed technology can effectively control the congestion degree of wireless Ad-hoc network and reduce the average slow start times under different node moving speeds.Moreover,it can also improve the throughput rate of wireless Ad-hoc network,and realize the optimization of TCP performance of wireless Ad-hoc network.

关 键 词：AODV协议 无线网络 AD-HOC 拥塞控制 丢包原因 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]