The Impact of Channel Type on Spectrum Sensing

PJ Smith; R Senanayake; PA Dmochowski; KA Alnajjar; A Giorgetti

Journal article

The Impact of Channel Type on Spectrum Sensing

PJ Smith, R Senanayake, PA Dmochowski, KA Alnajjar, A Giorgetti

IEEE Wireless Communications Letters | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | Published : 2022

DOI: 10.1109/LWC.2021.3124506

Abstract

In this letter, we investigate the impact of channel correlation and line-of-sight (LOS) on the performance of spectrum sensing, focusing on energy detection (ED) with estimated noise power and the sphericity test (ST). We derive the expected value and variance of the test statistic for ED with estimated noise power, showing that detection probability decreases with channel correlation but increases with LOS propagation. For the ST, we show that detection improves with increased LOS, but the effects of correlation are complex. Depending on the system parameters correlation can improve or degrade detection performance. The analysis is corroborated by means of simulations for correlated Raylei..

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University of Melbourne Researchers

Rajitha Senanayake Author

Related Projects (1)

Fog RAN: A Novel Radio Access Network for Wireless Communication Networks

This project aims to investigate a novel network architecture that supports ultra-reliable access and coverage for future generation wireles..

Grants

Awarded by Australian Research Council

Funding Acknowledgements

This work was supported in part by the Australian Research Council (ARC) through the Discovery Early Career Researcher under Award DE180100501. The work of Andrea Giorgetti was supported in part by MIUR under the program "Departments of Excellence (2018-2022)-Precise CPS." The associate editor coordinating the review of this article and approving it for publication was H. Zhou.