Free-space optical channel estimation for physical layer security
arXiv:1607.07799 · doi:10.1364/OE.24.008940
Abstract
We present experimental data on message transmission in a free-space optical (FSO) link at an eye-safe wavelength, using a testbed consisting of one sender and two receiver terminals, where the latter two are a legitimate receiver and an eavesdropper. The testbed allows us to emulate a typical scenario of physical-layer (PHY) security such as satellite-to-ground laser communications. We estimate information-theoretic metrics including secrecy rate, secrecy outage probability, and expected code lengths for given secrecy criteria based on observed channel statistics. We then discuss operation principles of secure message transmission under realistic fading conditions, and provide a guideline on a multi-layer security architecture by combining PHY security and upper-layer (algorithmic) security.
16 pages, 8 figures
References in corpus (4)
- Exponential decreasing rate of leaked information in universal random privacy amplification
- Impact of turbulence in long range quantum and classical communications
- Adaptive Real Time Selection for Quantum Key Distribution in Lossy and Turbulent Free-Space Channels
- Numerical Study on Secrecy Capacity and Code Length Dependence of the Performances in Optical Wiretap Channels
Cited by in corpus (7)
- Satellite-to-ground quantum communication using a 50-kg-class micro-satellite
- Quantum-limited measurements of optical signals from a geostationary satellite
- Free-space quantum links under diverse weather conditions
- Secrecy Performance of Terahertz Wireless Links in Rain and Snow
- Performance analysis of FSO communications under LOS blockage
- Quantum Keyless Privacy vs. Quantum Key Distribution for Space Links
- Quantum Keyless Private Communication under intense background noise