MPSK Modulation and Transmission Model

This article explores the transmission model for MPSK modulation with implementation details for different pulse shaping techniques. Three pulse shapes are implemented: rectangular pulse, raised cosine pulse, and square-root raised cosine pulse. The modulation order M supports values of 2 (BPSK), 4 (QPSK), and 8 (8-PSK), while the channel model incorporates additive white Gaussian noise (AWGN) to simulate real-world transmission conditions. In code implementation, the pulse shaping can be achieved using MATLAB's comm.RaisedCosineTransmitFilter and comm.RaisedCosineReceiveFilter objects for raised cosine implementations, while rectangular pulses can be generated using simple rectangular window functions. The MPSK modulator can be implemented using pskmod() function with appropriate M-values, and AWGN can be added using awgn() function with specified SNR parameters. By examining these key concepts with practical code examples, developers can gain deeper understanding of MPSK modulation systems and make more informed decisions in practical applications. This technical discussion provides valuable insights for digital communication system design and performance evaluation.