Preprint Article Version 1 This version is not peer-reviewed

Subcarrier-Sniffer:CSI-based Subcarrier-Level Spectrum Sensing Algorithm

Version 1 : Received: 5 August 2019 / Approved: 6 August 2019 / Online: 6 August 2019 (12:20:09 CEST)

How to cite: Tan, Z.; Lu, Z.; Sun, H. Subcarrier-Sniffer:CSI-based Subcarrier-Level Spectrum Sensing Algorithm. Preprints 2019, 2019080075 (doi: 10.20944/preprints201908.0075.v1). Tan, Z.; Lu, Z.; Sun, H. Subcarrier-Sniffer:CSI-based Subcarrier-Level Spectrum Sensing Algorithm. Preprints 2019, 2019080075 (doi: 10.20944/preprints201908.0075.v1).

Abstract

Abstract: As the massive deployment of the heterogeneous IoT devices in the coexisting environment such as smart homes,Traditional channel-based spectrum sharing algorithms such as CSMA has great limitations to further optimize spectrum utilization. Therefore, exploring more efficient spectrum sensing algorithm becomes hot topic these years. This paper proposes Subcarrier-Sniffer, which utilizes Channel State Information (CSI) to sense the subcarrier-level detailed status of the spectrum. In order to evaluate the performance of Subcarrier-Sniffer, we implemented Subcarrier-Sniffer by USRP B200min, and the experimental results show that when the distance between Subcarrier-Sniffer and the monitored devices is not great than 7 m, the accuracy of subcarrier-level spectrum sensing could achieve 100% in our settings.

Subject Areas

subcarrier level spectrum sensing;spectrum utilization

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