BPSK Modulation and Demodulation in Rician Fading Channels with AWGN

This SIMULINK simulation implements BPSK modulation and demodulation in a composite channel environment combining Rician fading and Additive White Gaussian Noise (AWGN). The implementation utilizes MATLAB's Communication Toolbox blocks including the BPSK Modulator/Demodulator, Rician Fading Channel block, and AWGN Channel block to construct the complete communication chain. The simulation performs detailed analysis of critical parameters such as Bit Error Rate (BER) calculated using Error Rate Calculation blocks, constellation diagrams generated through scatter plot functions, and signal quality metrics. Additionally, the study investigates performance indicators including channel capacity using Shannon's formula implementation and power efficiency metrics through SNR-to-BER relationship analysis. The simulation employs Monte Carlo methods for statistical validation and includes comparative evaluation of results under varying K-factors (Rician parameter) and SNR conditions. This experimental framework provides deep insights into BPSK modulation performance in complex channel environments, offering valuable reference data for communication system optimization and enhancement through parameter tuning and algorithm improvements.