【摘要】 无线传感器网络中,节点功率调节越大,网络连通性和抗毁性就越好,但是能耗也越大.为此,尝试找到抗毁性与能耗的折中点,既保证基本的抗毁性,又达到节能的目的.在分簇网络拓扑结构基础上,提出了一种基于概率母函数的功率控制算法,通过功率控制使之达到网络崩溃的临界点,以此与网络抗毁性达到很好的折中.仿真实验结果表明,该方法能找到此折中临界值,在节点数量较大情况下,该方法较使用加大固定功率的情况节省近50%的能耗.更多还原

【Abstract】 In a wireless sensor network( WSN),the greater the node power regulate,the better the connectivity is,so the anti-destroying ability will be stronger automatically. However,the energy consumption is enormous. This article aims to find a balanced point between anti-destroying ability and energy consumption,which not only guarantees the basic anti-destroying ability,but also saves energy. Therefore,based on the clustering of the network topology,in the premise of ensuring the network’s basic anti-destroying ability,this paper proposes a power control algorithm based on probability generating function,which is formed by controlling the power to the critical point of network collapsing to get a better compromise with network anti-destroying ability. Simulation results showthat the scheme can find the critical value. In the case of larger node numbers,this scheme can save 50% of energy consumption compared with enlarging the fixed power.更多还原