一种基于无线传感器网络安全的能量优化路由算法

针对无线传感器网络节点能量利用效率、能量消耗不均衡和安全威胁而导致的网络寿命和网络功能受到影响等问题,提出了一种基于网络安全的能量优化路由算法.在网络中建立安全信任评估机制,借用物理学中势场的概念,利用节点深度、区域能量、剩余能量和安全信任值信息建立4个势场,并将它们统一成一个整合的势场.利用该势场函数确定节点数据包传输的下一跳方向,来达到对传感器网络能量利用效率、能量均衡和安全性的优化.通过仿真实验验证了算法的有效性.

An energy-optimization routing algorithm based on security of wireless sensor network

For problems of the network lifetime and network functions affected by nodes energy efficiency, imbalance consumption of energy and security attack, an energy-optimization routing algorithm based on network security is proposed. An evaluation mechanism of trust is set up in network and using the concept of potential field in physics, four potential fields based on the node depth, region energy, residual energy and trust value which are unified to an integrated potential field, are established. The direction of next hop of packets transmission is determined according to this potential field function, so that the optimization of energy-efficiency, energy-balance and security of sensor network is achieved. Then, the effect of this algorithm is proved by simulative experiments.