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If the jammer operates as a partial-band jammer, what is the bandwidth occupancy for worst-case jamming?
The interference on the channel is AWGN. The FSK demodulator outputs are square-law-detected and passed to the decoder, which performs optimum soft-decision.
Determine the error probability for an FH spread spectrum signal in which a binary convolutional code is used in combination with binary FSK.
Determine the condition for the convergence of the mean value of CN (n).
Determine the range of values of ? that provides an over damped system for the adjustment process.
Determine the lattice filter and its optimum reflection coefficients corresponding to the linear predictor in Problem
Determine the optimum coefficients of the adaptive transversal (FIR) filter B(z) = b0 + b1z-1 that minimize the mean square error.
Assess the cost of the cyclic prefix (used in multicarrier modulation to avoid ISI) in terms .
What is the relationship between X(0) and X'(0)? If we plot |X(k)| and |X'(k)| on the same graph, explain the relationships between the two graphs.
Plot the probability of error for s21 = 1, s22 = 3, and either k = 1 or k is the optimum value found in a.
Sketch the trellis for the maximum-likelihood sequence detector and label the states.
Determine the average probability of error, assuming that the two signals are equally probable and the additive noise is white and Gaussian.
Determine the tap coefficients of a three-tap linear equalizer based on the zero-forcing criterion.
Determine the tap coefficients of a three-tap linear equalizer that equalizes the channel (received signal) response to an equivalent partial-response .
Determine the residual ISI at the output of the equalizer for the optimum tap coefficients.
Determine the output of the demodulator at t = T and t = 2T that employs a filter matched to s(t).
Determine qm for m = ±2, ±3, by convolving the impulse response of the equalizer with the channel response.
Determine the possible output levels at the detector, assuming that successive transitions can occur at the rate 1/Tb.
The received sequence {yn} is processed by a linear three-tap equalizer that is optimized on the basis of the MSE criterion.
Evaluate and compare the exact values of the output SNR for the three-tap and infinitetap DFE in the special cases where N0 = 0.1 .
This pulse is used for transmitting digital information over a band-limited channel at a rate 1/T symbols/s.
How many surviving sequences are there in the Viterbi algorithm for this channel?
The Nyquist criterion gives the necessary and sufficient condition for the spectrum X( f ) of the pulse x(t) that yields zero ISI.
Select a symbol rate and a power efficient constellation size to achieve 9600 bits/s signal transmission.
Design an M-ary PAM system that transmits digital information over an ideal channel with bandwidth W = 2400 Hz.