一种能量均衡的无线传感网络生命期优化算法

Energy-balanced optimization algorithm for maximizing network lifetime in wireless sensor networks

针对传统路由算法在无线传感器网络中的不足,选取能耗小、节点剩余能量多的路由以均衡网络能耗并最大化网络生命期。通过构造目标优化度评价函数,以达到网络路由能量均衡最优化的目的。算法通过调整各目标优化度函数的取值范围,以满足业务对能耗和剩余能量的不同要求。最后的仿真结果显示,与传统的路由算法相比,本算法在网络生命期、能量均衡分布及总体能耗等方面具有明显优势。

In view of the deficiencies of traditional routing algorithms in wireless sensor networks, the proposed algorithm selects the path with minimum total power consumption and maximum nodes＇ residual battery to balance power consumption and maximize the network lifetime. An evaluation function of objective optimization degree is formatted to balance power consumption of network routing. The algorithm can adjust subject function space and satisfy well with requirements of various services for power consumption and residual battery of the path. Finally simulation results confirm that compared with the traditional routing algorithms, this pro- posed algorithm is the best approach on performances of the network lifetime, the power consumption and the uniform distribution of residual battery.