Q.

Power efficiency of M-ary FSK increases, since                    

A. constellation is densely packed
B. m signals are non-orthogonal
C. fixed null bandwidth
D. m-signals are orthogonal
Answer» D. m-signals are orthogonal
Explanation: in m-ary fsk, all the m signals are orthogonal and there is no crowding in the signal space. hence, power efficiency of m- ary fsk increases with m.
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Sunita Sid Koshy
6 months ago

Question: What is the impact of using a densely packed constellation on the power efficiency of M-ary FSK?
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