Wireless Communication Systems — Physical Layer Simulation & Analysis
Project Overview
This project series, completed during the Winter 2025 semester as part of the Wireless Communications course at the Technical University of Crete, covers the simulation and analysis of the physical layer (PHY) of wireless telecommunication systems. The work spans five separate technical reports, each addressing a fundamental aspect of modern wireless communication.
The entire project was implemented in MATLAB, with each report including full simulation code, BER (Bit Error Rate) performance diagrams, and detailed analytical discussion. The topics progress from basic channel modeling through advanced multi-antenna architectures and multi-user access techniques.
Reports Overview
Rayleigh Flat Fading Channels
Modeling and simulation of Rayleigh flat fading and block fading wireless channels. Analysis of the statistical properties of the channel, impact on signal quality, and BER performance comparison against AWGN channels.
Diversity & Spatial Multiplexing
Simulation of MIMO and SIMO antenna architectures with diversity techniques including Maximum Ratio Combining (MRC) and Equal Gain Combining (EGC). Performance evaluation of spatial multiplexing for throughput enhancement.
Channel Estimation & Equalization
Implementation of Least Squares (LS) and Zero Forcing channel estimation techniques. Analysis of equalization methods for mitigating inter-symbol interference (ISI) in frequency-selective channels.
Carrier Frequency Offset (CFO) Synchronization
Study and simulation of carrier frequency offset effects on OFDM systems. Implementation of CFO estimation and correction algorithms to maintain synchronization between transmitter and receiver.
DS-CDMA Multi-Access
Implementation and analysis of Direct-Sequence Code Division Multiple Access (DS-CDMA) systems. Evaluation of multi-user interference, spreading codes, and system capacity under varying user loads.