Rayleigh Fading & Interference Channels Effects on Rectangular Mary-QAM in OFDM Transmission for 5G/6G Communication System

One of the most alluring multi-wave modulation methods for channel communications is orthogonal frequency division multiplexing (OFDM) technology. OFDM technology still has the issue of high peak-to-amplitude power ratios (PAPR) despite its many advantages in transmit channel investment. To clarify the PAPR effect of OFDM transmission, a number of approaches have been put out in the literature. By increasing complexity or decreasing bit rate (BER), PAPR may be enhanced. OFDM technology has been introduced into communication, allowing for a higher reduction in PAPR while investing in additional channels. Furthermore, the research has verified several different hybrid communication protocols for usage in 5G mobile telematics approaches. More recent methods have been proposed that might enhance the BER framework, keep the bit flow rate high, and reduce the PAPR. The simulation findings demonstrate that the activities will have a significant impact on the received data signals with the intersymbol interference (ISI). Following the implementation of the suggested model, the frequency response and pattern findings demonstrated a remarkable improvement in channel illumination, which raised the bit error rate by up to 22 dB.