Configurable hardware-based radio interferometric node localization
Configurable hardware-based radio interferometric node localization
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DOI：
10.1109/aero.2010.5446670
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发表时间：
2010-03
期刊：
影响因子：
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通讯作者：
Sándor Szilvási;J. Sallai;Isaac Amundson;P. Volgyesi;Á. Lédeczi
中科院分区：
文献类型：
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作者：
Sándor Szilvási;J. Sallai;Isaac Amundson;P. Volgyesi;Á. Lédeczi
无线自组织传感器网络通常随机部署在空间中，以收集有关物理世界的信息。在这些空间随机的传感器网络中，一个基本的问题是精确的节点定位沿着的关键要求，以保持节点的成本在最小。现有的基于无线电干涉测量的节点定位技术仅使用传感器节点上容易获得的低成本无线电芯片来实现cm分辨率。本文提出了一种替代的基于硬件的解决方案，这种技术的信号处理部分。我们表明，我们的方法容忍更广泛的干扰频率，同时释放宝贵的计算和存储资源的传感器节点。所提出的测距功能最终可以被包括在当前的COTS无线电收发器芯片中，因此在节点上可以获得准确的定位，而无需显著的额外计算成本或价格。
Wireless ad-hoc sensor networks are typically deployed randomly in space to gather information about the physical world. In these spatially random sensor networks, one of the fundamental problems is precise node localization along with the key requirement to keep node cost at minimum. Existing radio interferometry-based node localization techniques achieve cm resolution using only low-cost radio chips readily available on sensor nodes. This paper proposes an alternative hardware-based solution for the signal processing part of such a technique. We show that our approach tolerates a much wider range of interference frequencies while freeing up precious computational and storage resources on the sensor node. The proposed ranging functionality can eventually be included in current COTS radio transceiver chips, thus accurate localization will be available on the nodes, without a significant additional cost in computation or price.