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- Satellite IoT System Simulation with SEAMCAT: overview, modeling and analysisPublication . Dionísio, Rogério PaisSatellite IoT System Simulation with SEAMCAT: overview, modeling and analysis.
- Spectrum Engineering Towards 5G: Helping to Ensure Efficient and Interference-free Wireless CommunicationsPublication . Dionísio, Rogério PaisWith the current use of mobile devices across the world, with increasing demands on bandwidth resources, solving the congestion in the radio spectrum is becoming a challenging task to spectrum regulators. Radiocommunication systems must share the resources efficiently using different multiplexing techniques using space, frequency or time dimension. Sharing and compatibility studies are required to assess the possibilities for radio systems to coexist in the same or in adjacent frequency bands. SEAMCAT (www.seamcat.org) is a software tool based on the Monte-Carlo simulation method, which is developed within the frame of European Conference of Postal and Telecommunication administrations (CEPT). This tool permits statistical modelling of different radio interference scenarios for performing sharing and compatibility studies between radio-communications systems in the same or adjacent frequency. SEAMCAT is used by many regulatory agencies across the world for various spectrum sharing and compatibility studies such as between mobile systems and terrestrial broadcasting networks.
- Electromagnetic interference analysis of industrial IoT networks: from legacy systems to 5GPublication . Dionísio, Rogério Pais; Lolić, Teodora; Torres, PedroThe presence of Industrial IoT systems on the factory shop floor in recent years, are becoming an attractive solution with many advantages, including flexibility, low cost and easy deployment. As more and more devices are wirelessly connected, spectral noise level increases and consequently radio interference between IoT devices. In this paper, we present an agnostic methodology to assess radio interferences between different industrial IoT systems on the factory floor, using appropriate propagation models. Several interference scenarios are simulated, ranging from legacy systems to future communication standards implementations (5G). We highlight some of the challenges and open issues that still need to be addressed to decrease interference and make industrial wireless systems compatible.
- Radio interference analysis of industrial wireless networks : from legacy systems to new standardsPublication . Dionísio, Rogério Pais; Lolić, Teodora; Torres, PedroThe presence of wireless communications systems (WCS) on the factory shop floor, with a two-digit growth rate in recent years, are becoming an attractive solution with many advantages, including flexibility, low cost and easy deployment. As more and more devices are wirelessly connected, spectral noise level increases and consequently radio interference between devices. In this paper, we present an agnostic methodology to assess radio interferences between different industrial wireless communication systems on the factory floor, using appropriate propagation models. Several interference scenarios are simulated, ranging from legacy systems (BLE, WIFI) to future communication standards implementations (5G). We highlight some of the challenges and open issues that still need to be addressed to decrease interference and make industrial wireless systems compatible.
- Spectrum engineering towards 5G : helping to ensure efficient and interference-free wireless communicationsPublication . Dionísio, Rogério PaisSpectrum engineering towards 5G : helping to ensure efficient and interference-free wireless communications.