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 orthogonalI have been asked this question during an internship interview.I'm obligated to ask this question of Combined Linear and Constant Envelope Modulation Techniques topic in division Modulation Techniques for Mobile Radio of Wireless/Mobile

Power efficiency of M-ary FSK increases, since _________(a) Constellat

1.	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 orthogonalI have been asked this question during an internship interview.I'm obligated to ask this question of Combined Linear and Constant Envelope Modulation Techniques topic in division Modulation Techniques for Mobile Radio of Wireless/Mobile
Answer» Correct choice is (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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