R

Ranjeet • 34.60K Points
Instructor I 

Q. The DPSK needs                  Eb/N0 than BPSK.

(A) 1db more
(B) 1db less
(C) 3db more
(D) 3db less
Correct : Option (A)

Explanation: 
 the dpsk system is easier to implement than psk and it needs 1db more eb/n0 than bpsk.

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