Sousa, SofiaVelez, FernandoPeha, Jon2019-08-282019-08-282017S. Sousa, F. J. Velez, J. M. Peha, “Impact of considering the ITU-R Two Slope Propagation Model in the System Capacity Trade-off for LTE-A HetNets with Small cells,” in Proc. of 32nd URSI GASS 2017, Montreal, Canada, Aug. 2017.http://hdl.handle.net/10400.6/7206This work aims at understanding and evaluating the impact of using different path loss models in the optimization trade-off of small cell (SC) networks. In LTE-A, the more realistic propagation models are the more efficient the radio and network optimization becomes. In this work we compare four urban path loss models: the urban/vehicular and pedestrian test environment from the ITU-R M. 1255 Report as well as the two slope Micro Urban Line-of-Sight (LoS) and Non-Line-of-Sight (NLoS) from the ITU-R 2135 Report. The two-slope model considers the existence of a breakpoint in the behaviour of the path loss and yields a significantly lower throughput per square km than a traditional one-slope model if and only if cell radius is small (coverage distances, R, up to breakpoint distance divided by the reuse pattern).engThroughputMathematical modelPropagation lossesAnalytical modelsComputational modelingRadio transmittersReceiversconference object10.23919/URSIGASS.2017.8105195