MATLAB Program for PSK Bit Error Rate Analysis in Communication Systems

In communication systems, PSK (Phase Shift Keying) is commonly employed for data transmission. PSK is a digital modulation technique that utilizes signals with different phases to represent distinct digital symbols. To evaluate the performance of PSK systems, we typically focus on the Bit Error Rate (BER), which represents the ratio of incorrectly decoded bits to the total number of transmitted bits during the communication process. For calculating the BER of PSK systems, we can develop a MATLAB program. MATLAB provides a powerful numerical computing and scientific programming environment with extensive tools and functions for data processing and analysis. The implementation typically involves: 1. Generating random binary data streams using functions like randi() 2. Applying PSK modulation through comm.PSKModulator or pskmod() functions 3. Adding Gaussian noise to simulate channel conditions using awgn() 4. Demodulating the signal with comm.PSKDemodulator or pskdemod() 5. Comparing transmitted and received bits to calculate BER using biterr() By developing a MATLAB program for PSK bit error rate analysis, we can simulate and evaluate PSK system performance under various conditions, including different signal-to-noise ratios (SNR), modulation orders (BPSK, QPSK, 8-PSK), and channel characteristics. This enables system parameter optimization to enhance transmission quality and reliability through systematic performance analysis.