Orthogonal Frequency Division Multiplexing (OFDM) enables efficient Dynamic Spectrum Access (DSA) but suffers from high sidelobe that causes excessive out-of-band (OOB) emissions and expose the system to spectrum-layer cyberattacks such as man-in-the-middle (MITM), eavesdropping, and primary user emulation (PUE) attacks. To address both spectral leakage and its security implications, this paper introduces a secure and intelligent hybrid optimization strategy that combinesan Eigenspace-based Generalized Sidelobe Canceller (ES-GSC) with a Genetic Algorithm (GA), to derive optimally weighted cancellation carriers. The proposed method jointly suppresses sidelobes and reinforces resistance to leakage-based attacks. MATLAB Simulation demonstrate considerable reductions in OOB emissions and higher resilience against spectrum-layer threats compared with existing techniques.
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B et al. (Thu,) studied this question.
www.synapsesocial.com/papers/69a76112c6e9836116a2e9d2 — DOI: https://doi.org/10.32604/cmc.2026.069776
Gul B
Atif Elahi
Tahir Saleem
Computers, materials & continua/Computers, materials & continua (Print)
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