摘要:
针对无线传感器网络无标度拓扑容侵能力差的问题,本文借助节点批量到达的Poisson网络模型,提出了一种具有容侵优化特性的无标度拓扑模型,并在构建拓扑时引入剩余能量调节因子和节点度调节因子,得到了一种幂率指数可以在(1,+∞)调节的无标度拓扑结构,并通过网络结构熵优化幂率指数,得出了具有强容侵特性的幂律指数值。实验结果表明：新的拓扑保持了无标度网络的强容错性,增强了无标度网络的容侵性,并具有较好的节能优势。
Abstract:
Considering that the scale-free topology in wireless sensor networks has poor ability of intrusion-tolerance, we use the Poisson network model with node batch arrival to construct a new scale-free topology model with intrusion-tolerance optimization. Additionally, the two adjustment factors about the residual energy and the node degree are introduced in the construction of the topology model. Then the scale-free topology whose power-law exponent can be adjusted in the range of (1,+∞) is obtained. Finally, the power-law exponent is optimized by the network structure entropy, and its optimal value is derived. Results show that the new topology has a strong fault-tolerance. And it also can enhance the network intrusion-tolerance and has good energy-saving advantages.
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