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 …

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 …

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 establishment of convenient and reliable cryptographic keys is not always feasible,
especially in low-powered wireless devices where a complex key management …

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 …

Physical layer security is typically linked to TDD wireless applications, where roughly a
reciprocity of the channel can be assumed. This creates the required common randomness …

Physical layer security is a technique that makes use of the physical communication channel
or medium to provide additional robustness to eavesdroppers and attackers. Key …

The reconfigurable aperture (RECAP) is a reconfigurable antenna consisting of a dense
array of electronically controlled elements, which can be manipulated to support many …

Physical Layer Security (PHYSEC) uses the inherently random and reciprocal nature of
physical (wireless) channels as a source for the generation of symmetric keys at the physical …

This chapter provides a survey of physical layer security and key generation methods. This
includes mainly an overview of ongoing research in physical layer security in the present …