Modulation Schemes and Decoding-IV Starter Quiz

In PSK system bit-1 represented with , bit-0 represented with bit duration . Modulated signal affected by white noise of PSD 2×10^-6 W/Hz. Probability of error, if bits are equiprobable and matched filter is used___

Consider a 16 ary PSK system with symbol error probability P_E = 10^-5. A gray code is used for the symbol to assignment. The approximate bit error probability is --------- × 10^-6

The probability of bit error of a BFSK Modulation scheme, with transmitted signal energy per bit E_b, in an additive white gaussian noise channel having one-sided spectral density N₀, is?

Binary data are transmitted over a microwave link at a Rate of 10⁶ bps and PSD of the noise at the receiver input is 10^–10 W/Hz for an average error of probability of P_e ≤ 10^–4, Choose the correct option(s)

Take erfc^–1(2 × 10^–4) = 2.64 erfc^–1(10^–4) = 2.8

A communication channel using coherent FSK has the noise power spectral density, N₀ = 10^-11 W/Hz; bit error probability, P_e = 10^-5. If 28.8 kbps data are sent over the channel, what is the amplitude (in mV) of input waveform? [Assume Q(4.27) = 10^-5]

An FSK system transmits binary data at the rate of 2.5 × 10⁶ bits/sec. During the course of transmission white Gaussian noise of zero mean & power spectral density of  N₀/2 =10^–20 W/Hz is added to the signal. In the absence of noise, the amplitude of received sinusoidal wave for digit ‘1’ or ‘0’ is 1 μV. The average probability of symbol error for non-coherent binary FSK is _____ × 10^-3