Experimental Evaluation of a Low-Power Ultra-Wideband Receiver for Spectrum Sensing
Abstract
Walsh-sequence-based receiver architectures offer an alternative approach for the reception and reconstruction of multiple simultaneous RF signals over wide bandwidths. While previous works have focused on the architecture and theoretical operation of Walsh-domain processing, limited experimental results have been reported so far on hardware operation under realistic conditions. This paper presents the experimental evaluation of a Walsh-sequence-based receiver prototype. A measurement campaign was conducted under various signal placement, interference, and receiver configuration scenarios. Reconstructed spectra, Walsh-lane power spectral densities (PSDs), and Error Vector Magnitude (EVM) measurements were used to investigate Walsh-domain signal representation, interference effects, and receiver performance. Finally, dense- spectrum experiments involving up to ten simultaneously active signals demonstrate the potential of the architecture for low power wideband spectrum sensing applications.
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BibTeX
@misc{vlachos2026experimental,
title = {{Experimental Evaluation of a Low-Power Ultra-Wideband Receiver for Spectrum Sensing}},
author = {Panagiotis Vlachos and Ioannis A. Bartsiokas and Cedric Dehos and Francois Rivet and George Karachalios},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.22134},
eprint = {2609.22134},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.22134},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Experimental Evaluation of a Low-Power Ultra-Wideband Receiver for Spectrum Sensing
AU - Panagiotis Vlachos
AU - Ioannis A. Bartsiokas
AU - Cedric Dehos
AU - Francois Rivet
AU - George Karachalios
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.22134
UR - https://arxiv.org/abs/2609.22134
AB - Walsh-sequence-based receiver architectures offer an alternative approach for the reception and reconstruction of multiple simultaneous RF signals over wide bandwidths. While previous works have focused on the architecture and theoretical operation of Walsh-domain processing, limited experimental results have been reported so far on hardware operation under realistic conditions. This paper presents the experimental evaluation of a Walsh-sequence-based receiver prototype. A measurement campaign was conducted under various signal placement, interference, and receiver configuration scenarios. Reconstructed spectra, Walsh-lane power spectral densities (PSDs), and Error Vector Magnitude (EVM) measurements were used to investigate Walsh-domain signal representation, interference effects, and receiver performance. Finally, dense- spectrum experiments involving up to ten simultaneously active signals demonstrate the potential of the architecture for low power wideband spectrum sensing applications.
ER -