Required number of propagation scenarios for acceptable reproduction of spectral efficiency distribution in (heterogeneous) network simulations

The necessary number of propagation scenarios in a generic channel model can be argued from different perspectives. When ensuring proper reproduction of channel sounding experiments, the model should reproduce the statistics of the measurements. In this context, the quantification of the distance between reference scenarios of WINNER/ITU-R model [1] enables the controlled reduction of the number of scenarios, and consequently, of the simulation complexity. However, if different environmental characteristics map onto similar system performance we should reconsider further model approximation or reduction of the number of scenarios. In this paper we evaluate the similarity of spectral efficiency distributions between WIM propagation scenarios with Jensen-Shannon divergence. The obtained results are related to previously calculated interscenario distances based on mean Kullback-Leibler divergence, and correlations are discussed.