能量有效的无线传感器网络无标度拓扑模型

针对无线传感器网络节点能量有限且易失效的问题,利用复杂网络理论提出了一种能量有效的无线传感器网络无标度拓扑模型。该模型通过节点的剩余能量约束节点的发射半径,在拓扑演化过程中充分考虑节点剩余能量和节点度等因素,并引入能量调节参数和节点度调节参数,得出了一种幂率指数可以在3,+∞)调节的无标度拓扑结构。动态分析和仿真实验结果表明,该模型具有无标度网络的幂率特性,且具有较好的容错性和能耗均衡的特点。

Scale-Free Topology for Wireless Sensor Networks with Energy Efficient Characteristics

Considering that the nodes with limited energy are prone to be failure in wireless sensor net-works and introducing energy and node degree adjustment parameters, an energy efficient scale-free topol-ogy model was constructed based on the complex network theory. The node residual energy is limited ac-cording to node radius and topological index can be changed within with full consideration of the factors such as the node residual energy and the node degree. Analysis on the topology dynamic behavior and simulation afterwards show that this model has power rate characteristics of scale-free networks and good fault tolerance and the energy balance characteristics.