System Performance Simulation of Open-Loop Transmit Diversity in CDMA Systems

This document presents a MATLAB-based simulation framework for analyzing the system performance of open-loop transmit diversity in CDMA systems. We will comprehensively discuss the operational principles of CDMA systems and the conceptual foundation of open-loop transmit diversity techniques. The simulation implementation includes MATLAB code structures for modeling CDMA signal transmission, diversity combining algorithms, and performance metric calculations. Through systematic performance simulation, we examine how open-loop transmit diversity impacts key CDMA system parameters such as bit error rate (BER) and signal-to-noise ratio (SNR). The simulation methodology employs matrix operations for signal processing and statistical analysis functions for performance evaluation. The results provide valuable insights into diversity gain and system robustness, offering practical suggestions for optimizing CDMA system performance through appropriate diversity scheme selection and parameter configuration.