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传感器网络中一种基于网格的密度控制算法


□ 羊四清 林亚平 李小龙 易叶青

  摘 要:在保证完全覆盖和网络连通的前提下,设计了一种基于网格的密度控制算法GDCA。仿真实验表明,与其他连通覆盖集求解算法相比,GDCA算法能够获得更小的连通覆盖集;且这种算法属于分布式算法,具有良好的扩展性,节点的传感区域可为任意凸形区域,更符合实际情况。
  关键词:传感器网络;网格;密度控制;覆盖
  中图分类号:TP393文献标志码:A
  文章编号:1001-3695(2009)06-2190-05
  doi:10.3969/j.issn.1001-3695.2009.06.058
  
  Grid-based density control algorithm for sensor networks
  YANG Si-qing1a,2,LIN Ya-ping1b,LI Xiao-long3,YI Ye-qing1a,2
  (1.a.School of Computer & Communication,b.School of Software, Hunan University, Changsha 410082, China;2.Dept. of Computer Science & Technology, Hunan Institute of Humanities Science & Technology, Loudi Hunan 417000, China;3.School of Mathematics & Computational Science, Guilin University of Electronic Technology, Guilin Guangxi 541004, China)
  Abstract:Under the premise of complete coverage and guaranteed connectivity,this paper proposed a grid-based density control algorithm (GDCA). Experimental simulations show that GDCA outperforms other algorithm for minimum connected cover set problem in terms of the size of constructed connected cover set. GDCA is totally distributed. In addition, the algorithm is applicable to scenarios where the sensing area of a sensor does not follow the unit disk model, but have any convex area. ......
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