128.METHODS FOR RADIO SPECTRUM EVALUATION AND MONITORING
Keywords: radio spectrum, measurement, modeling, LTE, DTV, intruder detection
AbstractDue to the extensive growth of wireless communications, the usage of radio bands requires a substantial optimized approach and rational treatment. Many new emerged communication scenarios necessitate techniques for optimal spectrum evaluation and monitoring. This paper discusses various such approaches and particularly focuses on spectrum sharing and coexistence presenting several case studies. It offers insights into simulation, modeling and measurement-based methodologies related to spectrum evaluation and utilization, focusing on the effects before and after the digital switchover (DSO) of the TV systems. We investigate the usability of the different propagation models in current wireless systems modeling, including the measurement-based validation of their precision for different scenarios. The article, furthermore, presents laboratory experiments on DVB-T and LTE-800 coexistence. Finally, it discuses a designed example of a nationwide monitoring system for intruder detection, comparing several applied methods and their precision.