This paper presents a performance analysis of a 2x2 Multiple Input Multiple Output (MIMO) system using M-ary Amplitude Phase Shift Keying (M-APSK) modulation over Additive White Gaussian Noise (AWGN) and fading channels. The study investigates the Bit Error Rate (BER) of the system and the energy per bit to noise power spectral density ratio (Eb/No), along with constellation diagrams under various communication channel conditions. Simulation results show that the 8-APSK modulation technique, when combined with MIMO technology, leads to significant improvements in spectral efficiency and error performance compared to traditional modulation systems. This improvement is particularly evident in environments characterized by high levels of noise and fading, where maintaining signal integrity is crucial. These results highlight the great potential of 8-APSK in modern wireless communication systems. This technique is especially beneficial for applications requiring high data rates and reliable performance, making it suitable for emerging technologies such as 5G and beyond. Ultimately, this research emphasizes the importance of advanced modulation techniques like 8-APSK in addressing the challenges of contemporary wireless communications, paving the way for more efficient and reliable data transmission in diverse environments.
Abdaljlil et al. (Wed,) studied this question.