A Study of G-Distribution Statistical Properties under Fractional Network Loading

This paper shows how statistical properties of the downlink interference vary along a fractional network loading in case of the 3GPP Long Term Evolution (LTE) system in highly interference limited scenario, where radio resources are shared in time and frequency domain with proportional fair (PF) scheduler. Results show at least 15 dB variations in average signal-to-interference (SINR) ratios for scheduled users under different loading conditions. Moreover, the paper shows how this knowledge can be used in network dimensioning process and link budget calculations. The results revealed clear SINR performance degrading for system loadings between 70% and 90% which could indicate that radio resource management (RRM) parameters can be optimized even more based on the current system loading and service type.