【摘要】 为了对无线传感器网络中随机分布的节点实施有效定位,针对典型Bounding Box算法的定位准确性与覆盖率较低的不足,提出了一种基于三跳通信环带概念的定位算法C3HR(concen trictriple-hop of node communication range)。理论分析及仿真结果均表明,该算法优化了对待测节点位置的约束,对于锚节点分布稀疏和不均匀的网络,显著提高了定位的准确性及覆盖率,并能够有效降低节点能耗。更多还原

【Abstract】 In order to achieve the geographic positions of random nodes in wireless sensor networks more efficiently and aiming at the defect that poor accuracy and coverage of traditional bounding box approach, a new localization algorithm was proposed based on concentric triple-hop of node communication range. The result of simulation and analysis shows that the proposed algorithm can optimize the constraints on nodes’ positions prominently, increase the estimation accu- racy and localization coverage significantly with sparse and non-uniform anchor distribution, decrease the energy con- sumption of sensor nodes accordingly.更多还原