基于分簇的无线多媒体传感器网络QoS多径路由

Cluster-based multipath QoS routing algorithm for wireless multimedia sensor networks

针对无线多媒体传感器网络应用,提出基于分簇的Qo S多径路由算法。该算法首先建立分层网络拓扑,然后基于改进蚁群算法实现Qo S多径路由。网络分层时,根据多媒体传感节点的有向性设计分簇算法,实现簇内数据融合以减少冗余数据。数据传输阶段,提出基于蚁群优化的Qo S多径路由算法以满足多约束的Qo S需求。仿真结果表明,与Ant Sens Net等路由协议相比,该算法有效降低网络负载,延长网络生命期。

A cluster-based multipath quality of service（ Qo S） routing algorithm（ CMQRA） for wireless multimedia sensor networks（ WMSNs） is proposed. Firstly,CMQRA builds a hierarchical structure in the network. Then,a Qo S multipath routing algorithm is presented. According to the orientation feature of the multimedia sensor nodes,a new clustering method is designed to realize the data aggregation and reduce the redundant data. In the data transmission phase,a Qo S multipath routing algorithm based on improved ant colony method is proposed to meet various Qo S requirements. Compared with Ant Sens Net and other protocols,simulation results show that the new algorithm can effectively decrease the traffic load and extend the network lifetime.