Physical layer security (PLS) has emerged as a new concept and powerful alternative that
can complement and may even replace encryption-based approaches, which entail many …

We consider the situation in which a transmitter attempts to communicate reliably over a
discrete memoryless channel, while simultaneously ensuring covertness (low probability of …

Widely deployed encryption-based security prevents unauthorized decoding, but does not
ensure undetectability of communication. However, covert, or low probability of …

Communication secrecy in the wireless systems has unique challenges due to broadcasting
nature of the radio waves, as compared to its wire-line counterpart. At the same time …

Security in wireless networks has traditionally been considered to be an issue to be
addressed separately from the physical radio transmission aspects of wireless systems …

Physical-layer security utilizes resources of the transmission medium to guarantee secure
communication against an adversary with unlimited computational power. Rooted in …

We propose a new scheme of wiretap lattice coding that achieves semantic security and
strong secrecy over the Gaussian wiretap channel. The key tool in our security proof is the …

A security measure called effective security is defined that includes strong secrecy and
stealth communication. Effective secrecy ensures that a message cannot be deciphered and …

The renewed interest for physical-layer security techniques has put forward a new role for
error-control codes. In addition to ensuring reliability, carefully designed codes have been …

This paper introduces a new and ubiquitous framework for establishing achievability results
in network information theory problems. The framework uses random binning arguments …