作者
Bernhard Etzlinger, Florian Meyer, Henk Wymeersch, Franz Hlawatsch, Gerhard Müller, Andreas Springer
发表日期
2014/6/22
研讨会论文
2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM)
页码范围
33-36
出版商
IEEE
简介
Cooperative sensor self-localization (CSL) in wireless networks usually requires the nodes to be equipped with specific ranging hardware including ultra-wideband or ultrasonic distance sensors. Such designs are not suitable for application in low-cost, low-power sensor networks. Here, we demonstrate how low-cost, low-power, asynchronous sensor nodes can be used to perform CSL (and, simultaneously, distributed synchronization) by means of time-stamped communication without additional ranging hardware. Our method combines a belief propagation message passing algorithm for cooperative simultaneous localization and synchronization (CoSLAS) with a MAC-layer time stamping scheme.We validate the models underlying the CoSLAS algorithm by means of measurements, and we demonstrate that the localization accuracy achieved by our hardware implementation is far better than that corresponding to …
学术搜索中的文章
Cooperative simultaneous localization and synchronization: Toward a low-cost hardware implementation
B Etzlinger, F Meyer, H Wymeersch, F Hlawatsch… - 2014 IEEE 8th Sensor Array and Multichannel Signal …, 2014