SINR Improvement by Adaptive Bandwidth Control in Multi-Band IoT Systems with Spectrum Sharing

This paper evaluates SINR improvement with an adaptive bandwidth control method which controls the actual use bandwidth of a multi-band IoT system to reduce inter-system interference power according to the used bands of an interfered system, inter-system power ratios, and interference power of unknown external systems in spectrum sharing systems with multiple narrow frequency bands. The evaluation results by computer simulation clarify the effective range of the method to these control parameters.