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Coherent QPSK simulation and BER vs. SNR curve

version (2.02 KB) by Sanjeet Kumar
BER performance for QPSK over additive white Gaussian noise channel is estimated and plotted.


Updated 16 Sep 2009

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This program performs a Monte Carlo simulation of a coherent QPSK communication system and plot the error probability performance over additive whit Gaussian noise channel. The detection is based on correlation metric. Simulation is performed for 10,000 bits and measurements are made accordingly.

Cite As

Sanjeet Kumar (2021). Coherent QPSK simulation and BER vs. SNR curve (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (4)


ngo hoanganh

Hi, we only need to change from "Qfunc" to "qfunc" to fix this.


hi sanjeet, i cant run your QPSK simulation file, there is an error in this line theorerrprb(i)=theorerrprb(i)+Qfunc(sqrt(2*SNR))

perhaps do you know why? thx...

Arun kumar Krishnan

hi nice

MATLAB Release Compatibility
Created with R2007a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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