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Information is carried by changing the phase of the carrier. ->BPSK (Binary PSK): Uses two phases (0° and 180°). Very robust, but only 1 bit per symbol. ->QPSK (Quadrature PSK): Uses four phases (0°, ...

Abstract: In this paper, peak-to-average power ratio (PAPR) problem of OFDM based waveforms is considered with the transmission of $\frac{\pi }{4}$ rotated QPSK, $\frac{\pi }{2}$ rotated BPSK ...

Abstract: This paper addresses the issue of future space communication systems by proposing an advanced DPSK-OFDM modulation scheme with the help of a different technology including light fidelity and ...