基于连通度的多跳传输路由算法

Multi-Hop Transmission Algorithm Based on Connectivity in Wireless Sensors Networks

针对由各种功能不同的传感器构成的无线传感器网络,提出了一种基于连通度的多跳传输的路由协议(MHTA),该算法根据网络中节点能量分布的不同,引入权重因子作为调节参数进行簇头选举,选举过程中综合考虑了各节点消耗能量,与基站的邻近程度和周围邻节点的数目.为了减少在数据传输过程中消耗的能量,提出了一种簇内多跳和簇间多跳相结合进行数据传输的方法.模拟实验结果证明:该算法能够降低簇头能量消耗,均衡网络负载,从而延长网络生存时间.

According to the wireless sensor network composed of sensors with various different functions, a multi-hop transmission routing algorithm （MHTA） based on connectivity is proposed. In this algorithm, according to node energy distribution＇s difference, the weighting factor is introduced as adjustment parameter for the cluster-head＇s election. In the process of election, combines multiple factors such as each node＇s energy consumption, its adjacent degree to base station and its number of neighbor node to select the cluster heads. In or- der to reduce the energy consumption in the data transmission process, the Intra-Cluster and Inter-Cluster multi-hop transmission algorithm is proposed. Simulation results showed： This algorithm can reduce cluster-head＇s energy consumption, balance the network load, and prolong the network＇s lifetime.