By designing constant-amplitude symbols on the Grassmann manifold and multiplying them by random variables, we generate signals that follow an arbitrary probability distribution, such as Gaussian or skew-normal distributions. The mathematical property of the manifold enables the transmitter’s random variables to remain unshared with the receiver, and the elimination of pilot symbols that could compromise covertness. The proposed scheme achieved higher covertness and achievable rates compared to conventional coherent Gaussian signaling schemes, without any penalty in terms of complexity.
Full abstract available in IEEEXplore DOI: 10.1109/LWC.2025.3540043
Authors
Hiroki Fukada - Faculty of Engineering, Yokohama National University Kanagawa, Japan
Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky – Ericsson Research, Japan
Naoki Ishikawa – Yokohama National University Kanagawa, Japan
Published in IEEE Wireless Communications Letters (Volume: 14, Issue: 4)
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