【摘要】 针对目前大多数覆盖机制主要面向二维无线传感器网络而不能直接应用到三维无线传感器网络的问题,本文提出了基于空间镶嵌的三维无线传感器网络k覆盖机制:选用截八面体进行三维空间填充,提出满足k覆盖的节点部署策略;提出填充单元内部空洞自修复算法,解决网络覆盖空洞问题;提出相邻填充单元协作修复算法,进一步延长网络生存时间.仿真结果表明,本文提出的机制能有效实现三维无线传感器网络k覆盖.更多还原

【Abstract】 Due to most of the existing coverage schemes unsuitable to 3 dimensional wireless sensor network for their design oriented to planar applications,in this paper w e present a k coverage scheme based on spatial tessellation theory. Firstly,the truncated octahedron is selected to fill 3 dimensional space,then a node deployment strategy w ith k coverage satisfied is proposed. In order to provide netw ork coverage,a coverage hole recovery algorithm based on individual cell is proposed. To make further improvement on the netw ork survival time,a coverage hole recovery algorithm based on cooperative neighboring cells is proposed. According to the simulation results,the k coverage in 3 dimensional w ireless sensor netw ork is realized effectively by the proposed scheme.更多还原