Effect of Epidemic Interference on the Performance of M-ASK, M-PSK and M-QAM Modulation Schemes

Abstract

This article presents a study on the performance of different digital modulation systems in the presence of epidemic interference. This type of interference is caused by the fast increase in the number of users in a system at a given time. The epidemic interference can be modeled as a non-stationary stochastic process, which presents random power levels over time. In a previous work, the authors assessed the effect of the epidemic interference on the performance of BPSK, QPSK, and M-QAM systems. The present paper extends the previous results for MASK and M-PSK systems. Furthermore, numerical results from Monte Carlo simulations are presented for all evaluated digital modulation systems.

Keywords

• lognormal interference
• epidemic interference
• non-stationary interference
• mobile communications
• digital modulation
• average error probability