WIRELESS NETWORKS AND MOBILE IP
WIRELESS NETWORKS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DQPSK
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MSK
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GFSK
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BPSK
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Detailed explanation-1: -7. Which modulation scheme is used by Bluetooth? Explanation: Bluetooth uses GFSK (Gaussian Frequency Shift Keying). When GFSK is used for Bluetooth modulation, the frequency of the carrier is shifted to carry the modulation.
Detailed explanation-2: -Bluetooth uses Frequency Hopping Spread Spectrum (FHSS) and is allowed to hop between 79 different 1 MHz-wide channels in this band. Wi-Fi uses Direct Sequence Spread Spectrum (DSSS) instead of FHSS. Its carrier does not hop or change frequency and remains centered on one channel that is 22 MHz-wide.
Detailed explanation-3: -Bluetooth uses the ISM 2.4 GHz band frequency and uses Gaussian frequency shift keying for communication. The communication distance is around 100 m or less. Bluetooth technology allows wireless communication between electronic devices.