Applications of C++

Gaming Industry. Game engines are written in C++. Web Browsers. Eg: Chromium Browser,Firefox,Google Chrome use C++. Operating Systems. Eg: Apple's OS X,Microsoft,Symbian OS use C++. Graphics. Eg: Adobe Photoshop,Illustrator,Acrobat are all developed using C++. Systems Programming. Embedded Systems. Multimedia Players. VLC,Windows Media Player. This link provides a list of systems,applications and libraries written in C++.... Continue Reading →

Why C++ ?

Bjarne Stroustrup designed the C++ language in 1979. It is a general-purpose language for systems programming. Let us look at some features of C++ language. C ++ is a portable language - It can be used for multiple platforms or operating systems. C++ supports Object Oriented Programming - Object Oriented Programming involves the concept of Class and Object.... Continue Reading →

32QAM MODULATION(BER vs SNR)

Program: clc; clear all; close all; M=64; k=log2(M); n=10^5; x = randi([0 1],n,4); Z = bi2de(x); y = qammod(Z,M,0,'gray'); scatterplot(y); N=length(y); SNR=-3:20; for i=1:length(SNR) noise2=awgn(y,SNR(i)); Y2=qamdemod(noise2,M,0,'gray'); ser2=step(comm.ErrorRate,Z,Y2); serVec2(i)=ser2(1); end semilogy(SNR,serVec2); axis([-3 20 10^-5 1]) grid on xlabel('Eb/No (dB)'); ylabel('BER'); title('32QAM Modulation in an AWGN channel'); RESULT:

Calendar in Python

The module called calendar allows you to output calendars and provides additional useful functions related to the calendar. By default, these calendars have Monday as the first day of the week, and Sunday as the last (the European convention). The 4 parameters are 2018,2,1,6.  2018 is the year , 2 is the width in character of... Continue Reading →

What is the date and time ?

Let us learn to print the current date and time using Python. We will be using the datetime module for this purpose. First we import date from datetime module. According to the python documentation, the datetime module supplies classes for manipulating dates and times in both simple and complex ways. We assign today's date to the... Continue Reading →

16QAM MODULATION (BER vs SNR)

MATLAB CODE: clc; clear all; close all; M=16; %for 16 QAM k=log2(M); %defining no. of bits n=10^5; %taking 100000 no. of bits x = randi([0 1],n,4); %generation of random binary bits Z = bi2de(x); %binary to decimal conversion y = qammod(Z,M,0,'gray'); % QAM modulation scatterplot(y); N=length(y); SNR=-3:20; for i=1:length(SNR) noise2=awgn(y,SNR(i)); %defining AWGN noise and adding... Continue Reading →

32-QPSK MODULATION(BER vs SNR)

MATLAB CODE: clc; clear all; close all; M =32; %channel modulation and de-modulation----------------------------------------------------------------------- hMod = modem.pskmod(M); hDemod = modem.pskdemod(hMod); % Generate data stream--------------------------------------------------------------------------------------------------- tx = randint(10000,1,M); % Modulate the data--------------------------------------------------------------------------------------------------------- txSig = modulate(hMod, tx); % Compute error rate for different values of SNR------------------------------------------------------------- EbNo = (-3:20); k = log2(M); SNR = EbNo+10*log10(k); % Range of... Continue Reading →

16PSK MODULATION(BER vs SNR)

MATLAB CODE: clc; clear all; close all; M = 16; %channel modulation and demodulation------------------------------------------------------------------------ hMod = modem.pskmod(M); hDemod = modem.pskdemod(hMod); % Generate data stream--------------------------------------------------------------------------------------------------- tx = randint(10000,1,M); % Modulate the data-------------------------------------------------------------------------------------------------------- txSig = modulate(hMod, tx); % Compute error rate for different values of SNR------------------------------------------------------------ EbNo = (-3:20); %defining SNR range (in dB) k = log2(M);... Continue Reading →

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