Alamouti Coding Scheme Implementation

Main function Alamouti(Nr, max_snr, max_err_symbol, symbol_per_frame) implements the Alamouti space-time coding scheme with the following components: QpskMapping(psudo_bit_sequence) - converts binary data to QPSK modulated symbols; RayleighCH(Nr, Nt) - simulates Rayleigh fading channel characteristics. Example usage: Alamouti(1, 12, 20, 24). Key parameters: 2 transmit antennas and 1 receive antenna configuration, SNR range from 0dB to 12dB, simulation stops when symbol errors exceed 20 at each SNR point, with 24 QPSK symbols per frame.

MATLAB 333 views Tagged

Download

Simulation of QPSK Signal Transmission Through Different Channel Models

This MATLAB program simulates the performance of QPSK signals transmitted through various channel models, including single-path, multipath, Rician, and Rayleigh flat fading channels. The implementation includes BER analysis, channel modeling techniques, and comparative performance evaluation.

MATLAB 204 views Tagged

Download

QPSK Modulation and Demodulation under Additive White Gaussian Noise Channel Conditions

Implementation of QPSK signal modulation and demodulation under AWGN channel conditions, featuring analysis of modulated signal power spectrum diagrams, input-output signal comparisons, and time-varying bit error rate plots contrasted with theoretical BER performance

MATLAB 281 views Tagged

Download

Constant Modulus Blind Equalization Algorithm for QPSK Signals

Implementation of constant modulus blind equalization algorithm for QPSK signals to reduce bit error rate after synchronization

MATLAB 232 views Tagged

Download

Adaptive Channel Equalization Using LMS Algorithm

Implementation of LMS-based adaptive channel equalization with QPSK training signals, featuring constellation diagram visualization for intuitive result analysis

MATLAB 237 views Tagged

Download

Generating QPSK Signals Using MATLAB with Rayleigh and AWGN Channel Simulations

Implement QPSK signal generation in MATLAB with comprehensive simulation of Rayleigh fading channels and Additive White Gaussian Noise (AWGN) channels

MATLAB 218 views Tagged

Download

Simulation of Carrier-Based QPSK Signal Transmission over Rayleigh Channels

Simulation of carrier-based QPSK signals propagating through Rayleigh fading channels with implementation details

MATLAB 209 views Tagged

Download

MATLAB Code Implementation for Multipath Channel Simulation

A multipath channel simulation program with the following core components: Jakes_filter.m generates the Doppler power spectrum shape of the channel, linear_fft.m performs FFT transformation with appropriate shifting, linear_psd.m analyzes signal power spectral density, qpsk_berest.m generates QPSK signals, and random_binary produces random signal sources.

MATLAB 191 views Tagged

Download