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IS-95 uses which modulation technique?(a) GMSK(b) BPSK(c) QAM(d) AFSKThe 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

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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