基于QoS和分簇机制的WMSNs路由算法研究

Research on Wireless Multimedia Sensor Networks ant colony routing algorithm based on QoS and clustering

摘要:

针对无线多媒体传感器网络中如何设计具有服务质量保证的路由算法问题,综合考虑的了节点间标准化后的丢包率、延迟、剩余能量、可用存储四个参数,提出算法ED-ACO(Energy and best distribution of Cluster Head Distance-Ant colony optimization )。ED-ACO算法采用基于剩余能量和簇首最佳距离分布的分簇结构,均匀划分网络,将节点的丢包率,延迟,剩余能量,可用存储标准化为具体参数,考虑到蚁群算法的状态转移概率公式中,利用该公式去选择下一跳路径传送感知数据,同时满足了服务质量要求。NS2仿真结果表明,与经典的AODV算法相比,在丢包率,延迟上保证了服务质量要求。

Abstract:

Aiming at the wireless multimedia sensor networks of QoS routing problem, this paper proposed a ED-ACO(Energy and best distribution of Cluster Head Distance-Ant colony optimization ) taking nodes statistics parameters ,packet loss, delay ratio, remain energy and available memory into consideration. ED-ACO used the clustering structure based on energy and best distribution of cluster head distance to partition networks uniformly, selecting the next hop to transmit sensor data according toSthe equation of state transition, in the same time it met the QoS requirements in WMSNs. NS2 simulation results indicates that ED-ACO compared with AODV satisfies the QoS requirements in packet loss ratio and delay ratio.