Sounding Techniques for Broadband Channels
Sounding, Characterization, Wireless Channel, Broadband.
In recent years, the demand for high rates of wireless data transmission has increased. One of the use cases of fifth-generation (5G) mobile communications systems, the Enhanced Mobile Broadband (eMBB), predicts a minimum 20 Gbps of peak data throughput using carrier aggregation technique to achieve the suitable bandwidths. However, broadband and ultra-broadband signals are more susceptible to time and frequency spread degradation due to signal propagation over multiple paths, and relative movement between transceivers, respectively. In this context, the channel sounding is of great relevance, since it allows us to estimate the characteristics of the transmission medium, enabling the conception of solutions to combat the performance degradation imposed by the communication channel. From this perspective, this work develops a research on the main broadband channel probing techniques, aiming at the conception of a channel sounding software tool composed of two modules: (i) module 1: creation of synthetic channels (simulated); and (ii) module 2: post-processing tool for characterization of the wireless broadband channel. The bibliographic survey and the software tool produced in this work will serve as a basis for future channel measurement and characterization work, being a training and benchmarking tool for studies in this area.