ECE 6604 Midterm: ECE 6604 GT Examf11
15 Feb 2019
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Friday december 16, 2:50pm - 5:40pm: attempt all questions, all questions are of equal value, open book, open notes, exam, the power delay pro le for a wssus channel is given by. 0 t /2 otherwise: 3 marks: find the channel frequency correlation function, 4 marks: calculate the mean delay and rms delay spread, 3 marks: 2 |n| : 4 marks: what is the mean and variance of k (dbm) at any spatial index k, consider the simulcast system shown in the gure below. A mobile station lies at a distance of 5 km, 10 km and 15 km from three base stations. The simulcast system is gps synchronized so that the same waveform is transmitted from the three base stations beginning at exactly the same time epoch. Neglect shadowing and fading, and assume that the propagation path loss fol- lows the model. Assume an ideal ofdm signal spectrum, where the power spectrum of the complex low-pass envelope is.
