Why do we need Monte Carlo simulation in digital communication to evaluate BER OF 16 QAM?

Can anyone tell me what is the difference between normal bit error calculation of 16 qam in matlab and with monte carlo simulation.

Thank you in advance

Answer 1

[Devineni Aslesha]

In normal bit error rate calculation, closed form expressions are used. In monte carlo simulation, simulations contained in MATLAB simulation functions are used for many iterations to study how a model responds with randomly generated inputs. This results in accurate bit error rate calculation.

For more information, refer the following links,

https://www.mathworks.com/help/comm/ug/bit-error-rate-ber.html#bq4230l

https://www.mathworks.com/discovery/monte-carlo-simulation.html