Bluetooth uses which digital modulation technique to exchange information between paired devices?

A. PSK (phase-shift keying)

B. FSK (frequency-shift keying)

C. ASK (amplitude-shift keying)

D. QAM (quadrature amplitude modulation)








 

Suggested Answer: A



Phase shift keying is the form of Bluetooth modulation used to enable the higher data rates achievable with Bluetooth 2 EDR (Enhanced Data Rate). Two forms of
PSK are used: /4 DQPSK, and 8DPSK.
References: http://www.radio-electronics.com/info/wireless/bluetooth/radio-interface-modulation.php

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