Problem
How is BFSK extended to M-ary FSK? Ans The dimensionally of the BFSK signal is nvo exactly the same as the number of symbols embodied in the generation of the signal. In the M-ary FSK signal, there are M distinct signals to be accounted for; hence, the dimensionality of the M-ary FSK signal is M. Mary FSK includes BFSK as a special case.