A binary PSK-modulated signal with carrier component was written in Section 9.2.8 as

S_PSK (t) = A sin [ω_ct + cos^-1 m d (t) + θ]

where 0 ‰¤ m ‰¤ 1 is the modulation index and d(t) is the data. It was expended as 

The first term is an unmodulated carrier component and the second term is the modulated component; 100m² is the percent of the total power in the carrier component and 100 (1 - m²) is the percent of the total power in the modulation component. Generate a plot showing probability of error versus percent power in the modulation component for z = 10.5, 10, 9.5, 9, 8.5 dB where z is the total E_b / N₀ (i.e., including both carrier and modulation components). From your plot, estimate the percent power in the modulation component that will produce a probability of error of 10^-4 for each value of z listed above.

Transcribed Image Text:

(0 + 1’m : SpsK (1)= Am sin (@,! + 0)+AV1 – m²d (1) cos (@̟1 + 0)