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Secrecy capacity of FBMC-OQAM modulation over frequency selective channel

par Rottenberg, Francois;De Doncker, Philippe ;Horlin, François ;Louveaux, Jerome
Référence IEEE Wireless Communications Letters, 9, 8, page (1230-1234), 9062307
Publication Publié, 2020-08-01

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Résumé :

This letter studies the Information-theoretic secrecy capacity of an Offset-QAM-based filterbank multicarrier (FBMC-OQAM) communication over a wiretap frequency selective channel. The secrecy capacity Is formulated as an optimization problem which has a closed-form solution In the high signal-to-noise ratio (SNR) regime. Two of the most common equalization strategies In FBMC-OQAM are considered, namely, single-tap and multi-tap equalization. For the sake of comparison, we also consider the secrecy capacity of a generic modulation and a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) modulation. As a result, we find that FBMC-OQAM Is particularly competitive for medium-to-long burst transmissions.