基于能耗转移与数据作用力的无线传感器网络节能修正算法  

Energy-efficient amendatory algorithm based on energy-consumption transference and data gravitation in wireless sensor networks

作　　者：刘壮[1] 房至一[1] 张春飞[1] 陈琳[1] 赵阳[1] 

机构地区：[1]吉林大学计算机科学与技术学院,长春130012

出　　处：《吉林大学学报（工学版）》2012年第5期1237-1242,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(61073164)

摘　　要：针对无线传感器网络能量受限的问题,提出通过判断传感器节点状态阈值来改变其状态的方式,将能耗最大路径的能耗分散到其他能耗相对较少的路径上,以便增加网络整体生命周期的节能修正算法。通过实验分析无线网络传感器路由算法得到传感器节点数据传递量与发生相应数据传递量的节点数量的概率之间的关系曲线,并给出了其影响参数及特征,获得了网络中能耗最多节点的分布特点,根据该特点,确定节能修正算法中的阈值。由于该算法本身消耗能量,给出数据作用力的概念,应用该概念降低算法自身的能耗。实验结果表明,该算法降低了无线传感器网络能耗,增加了网络生命周期。An energy-efficiency amendatory algorithm is proposed to save limited energy in Wireless Sensor Network（WSN）.In this algorithm,a sensor node changes it status according to the threshold of its energy condition.Therefore,the energy consumption in the path with the sensor node consuming most energy could be transferred to other paths in order to reduce the whole energy consumption of the network.Through experiments and analyses the relationship curve between the probability of number of nodes and the amount of data transmission was obtained;the factors that affect this relationship curve were analyzed;the features of the curve and the threshold mentioned above were found.Because of the energy consumption by the algorithm itself,the concept of data gravitation was proposed to reduce the energy consumption.Experiment results show that the algorithm is energy efficiency and the lifecycle of the networks is increased.

关 键 词：计算机系统结构 无线传感器网络 节能 关系曲线分析 数据作用力 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]