Current paper characterizes the performance of three-radio-frequency-channels, orthogonal-frequency-division-multiplexed (OFDM) radio-over-fiber (RoF) transmission system in terms error-vector-magnitude and received optical signal power for a typical 10 GHz receiver obtained by comprehensive simulations. The impact transmitted OFDM channels' signal-to-noise ratio (SNR) is also considered. We de...

A nonlinear spectral analysis technique that enables digital communication system metrics; SNR, EVM and the waveform quality factor (ρ) to be related to in-band distortion spectrum is presented. System metrics are estimated from the measured output power and in-band distortion power. The estimated metrics are verified by direct measurements of each metric using a Vector Signal Analyzer (VSA) pe...

This document describes the theory of oversampling, the hardware and software implementation on the TMS320C240 and important aspects that need to be considered when using oversampling. The different techniques with their main advantages, limitations and applications are covered in chapter 2. Chapter 3 describes the key implementation blocks that are required to implement oversampling on the TMS...

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Subdomain entry vocabulary modules represent a way to provide a more specialized retrieval vocabulary in a particular subject area. Several subdomain indexes have been derived for an analysis using the INSPEC database. The results show that subdomain indexes differ significantly from each other and from the general-purpose index they were derived from. The document pools that could be retrieved...

Smart contracts are programs running on cryptocurrency (e.g., Ethereum) blockchains, whose popularity stem from the possibility to perform financial transactions, such as payments and auctions, in a distributed environment without need for any trusted third party. Given their financial nature, bugs or vulnerabilities in these programs may lead to catastrophic consequences, as witnessed by recen...

Project control has been a research topic since decades that attracts both academics and practitioners. Project control systems indicate the direction of change in preliminary planning variables compared with actual performance. In case their current project performance deviates from the planned performance, a warning is indicated by the system in order to take corrective actions. Earned value ...