3 papers
quant-ph2020
Quantum Keyless Privacy vs. Quantum Key Distribution for Space Links
A. Vazquez-Castro, D. Rusca, H. Zbinden
We study information theoretical security for space links between a satellite and a ground-station. Quantum key distribution (QKD) is a well established method for information theo…
cs.IT2019
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…
cs.IT2018
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…