OFDM-TxRx-Baseband-Project

📘 Overview

This project implements a clean OFDM transmitter–receiver (Tx/Rx) simulation in MATLAB.
The system includes QAM modulation, IFFT/FFT, cyclic prefix (CP), Rayleigh fading channel, equalization, and performance visualization.

A compact RF/DSP project by Brian Rono.

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⚙️ Features

• Random bit generation
• 16-QAM mapping
• Serial–parallel → IFFT → CP insertion
• Rayleigh fading frequency-domain channel
• Equalization in frequency domain
• Simple BER computation
• Clean time-domain waveform visualization

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🖼 Included Output

• q1.png → OFDM time-domain waveform (first 500 samples)

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▶️ How to Run

1. Open MATLAB
2. Load ofdm_baseband_project.m
3. Press Run
4. View the generated OFDM waveform

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🔮 Future Work

• Add AWGN + detailed multipath fading (EPA/EVA/ETU models)
• Pilot-based channel estimation (LS/MMSE)
• BER vs SNR performance curves
• Adaptive modulation (4QAM/16QAM/64QAM/256QAM)
• Timing + CFO synchronization (Schmidl-Cox)
• Full bit→bit Tx/Rx chain with constellation plots
• Extend to MIMO-OFDM (2×2 or 4×4)

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👤 Author

Brian Rono
RF & Wireless • DSP • MATLAB
🔗 https://github.com/ronobrian-eng