An efficient spectrum sensing over $$\eta - \mu$$ fading on sub 6 GHz bands: A real-time implementation on USRP RIO

Reddy, Avuthu Avinash; Battula, Ramesh Babu; Gopalani, Dinesh

doi:10.1007/s11276-022-02975-1

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…It is used by hobbyist and academia and supports both wireless communications research and operational radio systems. The latest applications of GNU Radio environment include near-field measurements [33], wireless communication system development [34,35], spectrum sensing and availability [36,37], and machine learning [37,38].…”

Section: Receiver Sectionmentioning

confidence: 99%

SDR-Enabled Multichannel Real-Time Measurement System for In Situ EMF Exposure Evaluation

et al. 2022

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The spatial and temporal variability of the signals emitted by modern communication devices produced a paradigm shift in approaching the human exposure to electromagnetic fields (EMF). This inherent variability requires in situ, agile EMF measurement solutions capable of performing real-time isotropic measurements. The aim of this paper is to describe a new real-time, highly flexible multichannel EMF measurement system that consists of a sensor connected to state-of-the-art software-defined radio (SDR) equipment. In this paper an electric field sensor is proposed, but we also provide information on the extension of the probe to electric and magnetic fields. In the receiver section, the proposed solution is compared in terms of performances (sensitivity and accuracy), costs, and requirements, with standard solutions based on spectrum analyzers or a digital oscilloscope. Finally, the proposed solution was tested considering the signals emitted in various operating scenarios by a mobile device operating in the LTE-A and IEEE 802.11ax mobile communication standards. The results confirm the versatility and efficiency of the proposed solution for in situ EMF measurements of signals emitted by the new generation communication devices.

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