Channel-Aware Artificial Intersymbol Interference for Enhancing Physical Layer Security
| Autor: | Sasi Vinay Pechetti, Ranjan Bose |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Computer science
Matched filter Impedance matching Physical layer 020206 networking & telecommunications 02 engineering and technology Topology Upper and lower bounds Computer Science Applications Intersymbol interference Channel state information Modeling and Simulation 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Computer Science::Information Theory Communication channel |
| Zdroj: | IEEE Communications Letters. 23:1182-1185 |
| ISSN: | 2373-7891 1089-7798 |
| DOI: | 10.1109/lcomm.2019.2915076 |
| Popis: | In this letter, we propose a novel scheme for enhancing the security of the information transfer between resource-limited devices. We select a pulse from a set of $T$ -orthogonal pulses for shaping the data at source ( $S$ ) based on legitimate channel state information (CSI). A destination ( $D$ ) having the CSI, properly samples the output of the matched filter. An eavesdropper ( $E$ ) having no knowledge of the legitimate CSI, may or may not sample correctly, thereby, inducing artificial intersymbol interference (ISI) at the $E$ . We also consider a case where the $S-E$ link is correlated with the $S-D$ link (when $E$ and $D$ are closely located). We derive optimal thresholds at $E$ , $S$ for switching the selection of a pulse in maximizing and minimizing the achievable rate at $E$ , respectively. We derive closed-form expressions for upper bound and lower bound on the secrecy outage probability (SOP) for the independent case. Simulation results show that unlike at $D$ , the symbol error rate (SER) at $E$ saturates at a high SER due to the induced ISI. |
| Databáze: | OpenAIRE |
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