Quadrature Phase Shift Keying (QPSK) Archives

Impact of Multipath on the Received Signal

In this article, we describe the impact of multipath caused by the wireless channel on the signal arriving at the

We have seen in the effect of phase rotation that the matched filter outputs do not map back perfectly onto

Quadrature Amplitude Modulation (QAM) is a spectrally efficient modulation scheme used in most of the high-speed wireless networks today. We

Minimum Shift Keying (MSK) is one of the most spectrally efficient modulation schemes available. Due to its constant envelope, it

A carrier phase offset rotates the Rx constellation causing decision errors even in a perfectly noiseless environment. One of the