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Which modulation is spectrally more efficient?

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in Digital Communications by (828k points)
Which modulation is spectrally more efficient?

(a) BPSK

(b) MSK

(c) QPSK

(d) OQPSK

I have been asked this question in a job interview.

Query is from Bandwidth Efficiency Plane and Bandwidth Efficient Modulation in division Modulation and Coding Trade-off of Digital Communications

1 Answer

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Best answer
Correct option is (b) MSK

The explanation is: MSK is spectrally more efficient than the other modulation schemes. It has wider main lobe level and lower side lobe levels.

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