一种基于带宽接入控制的AODV改进路由协议  

Improved AODV Routing Protocol Based on Bandwidth Access Controlling

作　　者：周鑫[1] 张衡阳[2] 

机构地区：[1]重庆电子工程职业学院,重庆401331 [2]空军工程大学,陕西西安710038

出　　处：《电视技术》2013年第19期130-133,共4页Video Engineering

基　　金：国家自然科学基金项目(61202490)

摘　　要：无线自组网中的路由协议AODV没有提供流控和拥塞避免机制,当网络负载较重时,多媒体业务或产生较大的延时,或分组被大量丢弃,使网络性能下降。在AODV协议的基础上,提出一种基于带宽接入控制的改进协议BAC-AODV,对节点和路径的可用带宽进行估算,修改路由建立机制,使路径满足业务流对带宽的需求,保证网络的QoS质量。分析和仿真结果表明,改进后的协议相比原有AODV,能更有效地控制业务流量,提高吞吐量,降低延时。AODV protocol does not provide flow control and congestion avoidance mechanism in AdHoc,when the network loading becomes heavy,multimedia traffic will be delayed seriously or be dropped largely,the network performance will be declined.Therefore,An improved AODV routing protocol called BAC-AODV based on bandwidth access controlling is proposed,it can build a path to meet the traffic demand for bandwidth and ensure network QoS by estimating available bandwidth of node and path and modifying the routing mechanisms.The simulation results show that BAC-AODV can more efficiently control the traffic flow,improve the throughput and reduce end-to-end delay than AODV.

关 键 词：带宽估算 业务流 吞吐量 

分 类 号：TN92[电子电信—通信与信息系统]