Energy-Efficient Opportunistic Localization with Indoor Wireless Sensor Networks
Energy-Efficient Opportunistic Localization with Indoor Wireless Sensor Networks
复制标题
利用室内无线传感器网络进行节能机会定位
DOI：
10.2298/csis110406063x
复制
发表时间：
2011-10-01
影响因子：
1.4
通讯作者：
Zhao, Wenhong
中科院分区：
文献类型：
--
作者：
Xia, Feng;Yang, Xue;Zhao, Wenhong
定位对研究人员提出了相互矛盾的目标的挑战，即如何解决最小化能耗和保持定位精度的问题，这是无线传感器网络系统中两个重要的权衡。在本文中，我们提出了一种节能机会定位（EEOL）方案来满足定位精度和功耗的要求。我们探索机会唤醒概率的想法，以唤醒适当数量的传感器节点，同时确保高位置精度。传感器节点可以由用户发送的机会唤醒概率来触发。利用该方法，减少了用户感知范围内的活动传感器的数量，并且显着降低了功耗。已提出理论分析来评估 EEOL 的性能。仿真结果表明 EEOL 证实了我们的理论分析。
Localization challenges researchers for its contradictive goals, i.e., how to tackle the problem of minimizing energy consumption as well as maintaining localization precision, which are two essential trade-offs in wireless sensor network systems. In this paper, we propose an Energy-Efficient Opportunistic Localization (EEOL) scheme to satisfy the requirement of positional accuracy and power consumption. We explore the idea of opportunistic wakeup probability to wake up an appropriate numbers of sensor nodes, while ensuring the high positional accuracy. Sensor nodes can be triggered by the opportunistic wakeup probability sent from the user. Through utilizing this method, the number of active sensors in the sensing range of the user is decreased, and the power consumption is significantly reduced. Theoretical analysis has been presented to evaluate the performance of EEOL. Simulation results show that EEOL confirms our theoretical analysis.