Regarding the modulation scheme for LTE, I think that in the simulator the modulation-alphabet follows the definition of CQI values for LTE, right? Is that the same as an ‘adaptive modulation’?
Yes, the selection of Modulation and Coding Scheme (MCS) is made adaptively based on the Channel Quality Indicator (CQI) values and it is known as Adaptive Modulation and Coding (AMC), which actually does a transmission rate adaptation to match the current data rate to the channel conditions.