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IS-95 uses which modulation technique?

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IS-95 uses which modulation technique?

(a) GMSK

(b) BPSK

(c) QAM

(d) AFSK

The question was posed to me in an online interview.

The above asked question is from Second Generation (2G) Cellular Networks in section Modern Wireless Communication Systems of Wireless/Mobile

1 Answer

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Best answer
The correct choice is (b) BPSK

To elaborate: IS- 95 uses BPSK (Binary Phase Shift Keying) with quadrature spreading. It is regarded as one of the most robust digital modulation technique and is used for long distance wireless communication.

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