In physical-layer security, secret bits are extracted from wireless channels. With the
assumption of channel reciprocity, the legitimate users share the same channel which is …

As wireless communication scenarios grow more complicated, security issues are becoming
increasingly prominent and severe. In the Internet of Things and vehicle-to-everything …

Symbiotic radio (SR) has recently emerged as a promising technology to boost spectrum
efficiency of wireless communications by allowing reflective communications underlying the …

When establishing secret encryption keys using estimates of the reciprocal wireless
channel, the number of key bits that can be generated for a static or slowly varying …

In this work, we investigate a physical-layer key reconciliation protocol for a reciprocal, flat
fading channel between two legitimate users. We consider the scenario when the n bits of …

Common randomness of channels offers the possibility to create cryptographic keys without
the need for a key exchange procedure. Channel reciprocity for TDD (time-division …

The reciprocity of the channel transfer functions between legitimate users changing
randomly delivers the common randomness used in physical-layer key generation. Time …

We propose a multi-level CSI quantization and key reconciliation scheme for physical layer
security. The noisy wireless channel estimates obtained by the users first run through a …

Key reconciliation procedures are needed to correct key differences that can arise as a
consequence of independent noise at the two ends of a reciprocal link. We assume a line-of …

The potential of automatically generating secret keys by randomly changing the state of a
reconfigurable antenna is investigated through direct measurement. Measurements are …