【摘要】 由于在敌意或恶劣环境下,传感器网络节点的能量无法补充,研究节点能量用尽时,如何交换工作节点和睡眠节点的工作模式有重大意义。基于节点整体交换算法,提出了数据交换算法,新算法采用正方形网格剖分方法,对收集信息区域进行剖分,当网格某节点能量用尽时,进行节点数据交换。理论分析与实验测试结果表明:新算法能有效延长整个传感器网络的生命周期,并在时间复杂度与空间复杂度方面比整体交换算法具有更优性能。更多还原

【Abstract】 Research on how to transform the working modes of working and sleeping nodes has great signification,as the energy of sensor nodes are hard to supplement under unfavorable environment.Based on holistic exchange algorithm,data exchange algorithm is put forward.This new algorithm takes the methodology of square partition to divide the information collecting area and data exchange is carried out when the energy of grid nodes is used out.The theoretical analysis and simulation experiment show that this algorithm can effectively prolong the lifespan of the whole sensor network and is more advantageous than the holistic exchange algorithm in the complexity of time and space.更多还原