How can I do QPSK in MATLAB [closed]

1. How to generate QPSK signal?
2. How QPSK modulation is done?
3. How do you demodulate a QPSK signal in Matlab?

How to generate QPSK signal?

The QPSK signal is generated by phase-shifting the carrier. This applies for any carrier frequency. All symbol transitions are possible. I/Q Signals of quadrature modulation.

How QPSK modulation is done?

Quadrature Phase Shift Keying (QPSK) is a form of Phase Shift Keying in which two bits are modulated at once, selecting one of four possible carrier phase shifts (0, 90, 180, or 270 degrees). QPSK allows the signal to carry twice as much information as ordinary PSK using the same bandwidth.

How do you demodulate a QPSK signal in Matlab?

y = qpskdemod( x ) applies QPSK demodulation to the input signal and returns the demodulated signal.