Mobile Target Detection in Wireless Sensor Networks With Adjustable Sensing Frequency
Mobile Target Detection in Wireless Sensor Networks With Adjustable Sensing Frequency
复制标题
具有可调传感频率的无线传感器网络中的移动目标检测
DOI：
10.1109/jsyst.2014.2308391
复制
发表时间：
2016-09-01
影响因子：
4.4
通讯作者：
Guo, Minyi
中科院分区：
文献类型：
--
作者：
Hu, Yanling;Dong, Mianxiong;Guo, Minyi
如何高质量地感知和监控环境是物联网（IOT）的重要研究课题。本文讨论了无线传感器网络中目标检测质量和寿命之间平衡的重要问题。提出了两种目标监测方案。一种方案是感测频率K的目标检测（TDSFK），它将当前仅在部分感测周期上的感测时间分配到整个感测周期中。即感知频率从1增加到K。另一种方案是具有可调感知频率的目标检测（TDASF），它调整那些具有剩余能量的节点的感知频率。仿真结果表明，TDASF方案可以提高网络寿命17.4%以上，并可以降低加权检测时延101.6%以上。
How to sense and monitor the environment with high quality is an important research subject in the Internet of Things (IOT). This paper deals with the important issue of the balance between the quality of target detection and lifetime in wireless sensor networks. Two target-monitoring schemes are proposed. One scheme is Target Detection with Sensing Frequency K (TDSFK), which distributes the sensing time that currently is only on a portion of the sensing period into the entire sensing period. That is, the sensing frequency increases from 1 to K. The other scheme is Target Detection with Adjustable Sensing Frequency (TDASF), which adjusts the sensing frequency on those nodes that have residual energy. The simulation results show that the TDASF scheme can improve the network lifetime by more than 17.4% and can reduce the weighted detection delay by more than 101.6%.