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Probability density function (PDF) of the modulating retro-reflector (MRR) turbulence fading channels is crucial for the performance analysis of MRR communication systems. In this study, closed-form expression for the PDF of normalised MRR free-space optical (FSO) turbulence fading coefficient is obtained first. Moreover, it is applied to the evaluations of the closed-form expressions for average...
In this paper, a novel microwave photonic mixer based on a single integrated dual-drive dual-parallel Mach–Zehnder modulator (DD-DPMZM) is proposed. One submodulator is used to generate a single sideband (SSB) signal of the local oscillator, whereas the other submodulator is used to generate a double sideband signal of the radio-frequency signal. By adjusting the main dc bias of DD-DPMZM, we can suppress...
Wireless signal propagation in indoor environments is generally affected by various factors such as multi-path fading, temperature and humidity. It is thus challenging to use the simple metric of Received Signal Strength (RSS) for indoor localization. Prior work often requires manual profiling of each indoor environment to achieve good accuracy. We, instead, propose a simple generic localization algorithm...
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