A Spectrum-Efficient Cross-Layer RF Distance Bounding Scheme

<div>By employing IFFT, the signals that propagate along the LOS path or the NLOS path are transformed into pulses in the time domain. The first pulse represents the signal which propagates along the LOS path.</div>

Security and Communication Networks

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Figure 8

Figure 8: A Spectrum-Efficient Cross-Layer RF Distance Bounding Scheme 