基于蜂巢状虚拟结构的单汇聚节点节能重定位策略  

A strategy for energy-efficient relocation of single sink node based on honeycomb virtual structure

作　　者：黄祺[1] 冯勇[1] 李修琪[1] 黄北北[1] 

机构地区：[1]昆明理工大学计算机重点实验室,云南昆明650504

出　　处：《传感器与微系统》2016年第3期133-136,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61262081)

摘　　要：提出了一种基于蜂巢状虚拟结构的单汇聚节点节能重定位(HEESR)策略。此策略中整个网络覆盖区域被划分成多个蜂巢状虚拟网格结构。汇聚节点周期性地收集周边虚拟蜂巢网格的平均剩余能量和网格内单个节点的剩余能量,基于这些信息汇聚节点进行重定位。为进一步提高能量效率,HEESR策略还采用基于剩余能量水平的通信半径调整机制。仿真实验表明:与现有几种汇聚节点重定位方法相比,HEESR能够更有效地降低能量消耗、延长网络寿命。Propose a strategy for virtual honeycomb-based structured energy-efficient single sink node relocation （HEESR）. In this method, overall network coverage field is divided into several honeycomb virtual grid structure Sink node periodicly collect average residual energy of surrounding grids and residual energy of single node within grids and sink node is relocated based on these information. In order to increase energy efficiency, a radius adjustment strategy is used. Simulation shows that HEESR can significantly reduce energy consumption, improve network lifetime, compared with other methods of sink node relocation.

关 键 词：无线传感器网络 汇聚节点重定位 蜂巢虚拟网格 网络寿命 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]