Question

In MPSK, R/W

(a) Increases with increase in M

(b) Increases with decrease in M

(c) Decreases with increase in M

(d) Is not dependent on M

I have been asked this question in my homework.

I want to ask this question from Evaluating Digital Communication System and Allocation of Communication Resources in chapter Modulation and Coding Trade-off of Digital Communications

Answer 1

Correct choice is (a) Increases with increase in M

The best explanation: The bandwidth efficiency R/W increases as M increases in case of MPSK modulation.