Collected Simulation Programs for Multipath Fading, Rayleigh, Rice Channels and QPSK

This collection contains simulation programs for multipath fading, Rayleigh and Rice channels, QPSK modulation, and related communication system components, all thoroughly tested and verified to be functional. The package includes complete test results and simulation diagrams demonstrating system performance under various channel conditions. Additionally, I have gathered relevant literature on channel modeling and bit error rate (BER) performance analysis to facilitate deeper research and understanding of these concepts. The simulation code implements key algorithms including: - Multipath channel modeling with configurable delay spreads and Doppler shifts - Rayleigh fading generation using Clarke's model with multiple scattering components - Rice channel simulation with adjustable K-factor for line-of-sight components - QPSK modulation/demodulation with carrier recovery and synchronization loops - BER calculation algorithms with Monte Carlo simulation methods During testing, I observed several interesting phenomena which have been analyzed and explained in detail. These simulations help demonstrate the performance characteristics of multipath fading, Rayleigh and Rice channels, along with practical applications of QPSK modulation techniques. The programs are structured to allow parameter modification for different simulation scenarios, making them suitable for both educational and research purposes. I hope this comprehensive collection, combining practical code implementations with theoretical background, will be valuable for your research and professional work in communication systems.