What is phase shift keying?
Q: What is phase shift keying?
A: Phase shift keying is a way of transmitting information by modulating the phase of a carrier wave. The amplitude of the wave does not carry any information; all information is present in the phase of the signal.
Q: How can we use this system to better use bandwidth available?
A: By using this system, we can better utilize the bandwidth available since all information is present in the phase of the signal instead of relying on amplitude.
Q: What does it mean to have a “phase shift”?
A: A "phase shift" means that if we think of a wave as a wiggly line, (like a sine wave), and it is at one part (e.g. top) of its wiggle, and then immediately changes to another part (e.g bottom)of its wiggle, this is called a phase shift.
Q: How can binary phase shift keying be used to send computer data across radio waves?
A: Binary Phase Shift Keying can be used to send computer data across radio waves quite efficiently by changing or not changing the wave every time it gets to the top of its wiggle which represents either ones or zeros respectively.
Q: What are some wireless LAN standards that use Phase-shift keying?
A: Some Wireless LAN standards that use Phase-shift keying include those which couple with Orthogonal frequency-division multiplexing for higher data rates.
