26 citations · 106 across the 9 of their papers we have counts for
5 papers · 1 filter
Covert communication with Gaussian noise: from random access channel to point-to-point channel
Masahito Hayashi, Angeles Vazquez-Castro
We propose a covert communication protocol for the spread-spectrum multiple random access with additive white Gaussian noise (AWGN) channel. No existing paper has studied covert co…
Two-Way Physical Layer Security Protocol for Gaussian Channels
Masahito Hayashi, Angeles Vazquez-Castro
In this paper we propose a two-way protocol of physical layer security using the method of privacy amplification against eavesdroppers. First we justify our proposed protocol by an…
Compute-and-forward relaying with LDPC codes over QPSK scheme
Satoshi Takabe, Tadashi Wadayama, Ángeles Vazquez-Castro +1
In this paper, we study a compute-and-forward (CAF) relaying scheme with low-density parity-check (LDPC) codes, a special case of physical layer network coding, under the quadratur…
Secure Computation-and-Forward with Linear Codes
Masahito Hayashi, Tadashi Wadayama, Angeles Vazquez-Castro
We discuss secure transmission via an untrusted relay when we have a multiple access phase from two nodes to the relay and broadcast phase from the relay to the two nodes. To reali…
Physical Layer Security for RF Satellite Channels in the Finite-length Regime
Angeles Vazquez-Castro, Masahito Hayashi
Secure communications is becoming increasingly relevant in the development of space technology. Well established cryptographic technology is already in place and is expected to con…