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This paper focuses on the use of satellite communication systems for the support of Internet of Things (IoT). We refer to the IoT paradigm as the means to collect data from sensors or RFID and to send control messages to actuators. In many application scenarios, sensors and actuators are distributed over a very wide area; in some cases, they are located in remote areas where they are not served by...
Cognitive radio (CR), a disruptive technology, has come out as a promising solution to the problem of spectrum scarcity and which will facilitate the flexible spectrum use in future. In this paradigm, the spectrum utilization is improved by opportunistic spectrum use by unlicensed users without interfering the licensed user. Spectrum occupancy measurement highlights the sections of the spectrum bands...
In this paper an analysis on the use of Adaptive Coding and Modulation (ACM) techniques for EHF satellite communications is presented with reference to the DVB-S2 standard. The analysis is focused on W-band communication links and includes an optimization of DVB-S2 ACM thresholds of the received Signal to Noise Ratio (SNR) for Extremely High Frequency (EHF) links. The simulation model includes rain...
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