Question

If the rate of change of the carrier frequency is greater than the symbol rate, then the system is referred as ___________

(a) Fast frequency hopping system

(b) Slow frequency hopping system

(c) Time division frequency hopping system

(d) Code division multiple access system

The question was asked in a national level competition.

The query is from Spread Spectrum Multiple Access in section Multiple Access Techniques for Wireless Communications of Wireless/Mobile

Answer 1

The correct option is (a) Fast frequency hopping system

For explanation I would say: If the rate of change of the carrier frequency is greater than the symbol rate, then the system is referred as a fast frequency hopping system. If the channel changes at a rate less than or equal to the symbol rate, it is called slow frequency hopping.