Measurement and Analysis of Radio Frequency Interference in the UWB Spectrum

Ramoni Adeogun, Gilberto Berardinelli, Ignacio Rodriguez, Preben Elgaard Mogensen, Mohammad Razzaghpour
2019 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)  
Ultra-wide band (UWB) radio systems are expected to operate in co-existence with a myriad of other systems over a large unlicensed bandwidth. Thus, UWB devices need to incorporate efficient inter-system interference mitigation mechanisms. In this paper, we present interference measurements covering the UWB spectrum from 3 GHz to 11 GHz conducted at two locations (indoor and outdoor) on the campus of Aalborg University, Denmark. We analysed the measurements in terms of occurrence probability,
more » ... erference power distribution and inter-arrival time statistics. The goal is to understand the characteristics of signals emanating from systems operating on this ultra-wide bandwidth as a basis for the development of models and methods for interference characterization and mitigation. Results indicate that signal activity vary significantly across the spectrum with the 5 GHz -6 GHz and 9 GHz -10 GHz sub-bands having the strongest power levels in the indoor and outdoor measurements, respectively. Statistical analysis results further show significant variation of the power distribution, occurrence probability and inter-arrival time statistics for the various signals detected in the measurements. Results also show that time between interference occurrence is exponentially distributed for most of the sources.
doi:10.1109/vtcfall.2019.8891426 dblp:conf/vtc/AdeogunBRMR19 fatcat:pbsq42xqbzc5tdu3lnhjzf723y