Data transmission

Performance of a digital transmission in the presence of the error correction coding in matlab

The following Matlab project contains the source code and Matlab examples used for performance of a digital transmission in the presence of the error correction coding. Is to study the improvement of digital transmission for BER, the correction code block with the control matrix is defined by: H=[1 0 1 1 0 0;1 1 0 0 1 0;0 1 1 0 0 1]; with: length code : n=6.

Blind channel equalization in matlab

The following Matlab project contains the source code and Matlab examples used for blind channel equalization . Conventional equalization and carrier recovery algorithms for minimizing meansquare error in digital communication systems generally require an initial training period during which a known data sequence is transmitted and properly synchronized at the receiver.

Pulse width modulation in matlab

The following Matlab project contains the source code and Matlab examples used for pulse width modulation. Pulse Width Modulation Pulse-width modulation (PWM), or pulse duration modulation (PDM) is a modulation technique that conforms the width of the pulse, formally the pulse duration, based on a modulator signal information.

Bfsk modulation in matlab

The following Matlab project contains the source code and Matlab examples used for bfsk modulation. A BFSK Modulator Function, where x is the BFSK Output, fc is the carrier frequency, and T is the symbol (bit) duration, nbits is the number of bits, and  b is the Input bit stream. Syntax:: [x,nbits]=bfsk_mod(b,fc,T);

Free distance calculation in maximum likelihood sequence detection (mlsd).. in matlab

The following Matlab project contains the source code and Matlab examples used for free distance calculation in maximum likelihood sequence detection (mlsd)... In presence of Inter Symbol Interference (ISI), the Maximum-Likelihood Sequence Detection (MLSD) is the optimum equalizer for minimizing sequence error rate.

Implementation of 16 qam algorithm in the presence of awgn channel in matlab

The following Matlab project contains the source code and Matlab examples used for implementation of 16 qam algorithm in the presence of awgn channel . The program take an input stream of first 16 integers converted to binary form in the form of 4 bits least pass them on to the 4-bit register which takes first 2 bits to the I-channel and the next 2 bits to the Q-channel for modulation with cos and sin carriers respectively.

Baseband numeric transmission in matlab

The following Matlab project contains the source code and Matlab examples used for baseband numeric transmission.  This script is intended to illustrate the concepts of eyediagramm, constellation, ISI and to understand the effects of additive noise power, channel frequency band restriction, number of possible states within a symbol period, affecting the quality of the transmission.

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