problems3 - 4. Determine the decision regions of the...

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Digital Modulation 1 - Problem Set 3 Problem 1 (4PAM) Consider a 4-ary pulse amplitude modulation (4PAM) transceiver transmitting across the AWGN channel. The transmitted waveforms are rectangular pulses with duration T ; their levels are - 3 d , - d , + d ,+3 d with d denoting a positive constant. 1. Determine the vector representation of the waveforms. 2. Determine the signal constellation. 3. Compute the average symbol energy as a function of d under the assumption that the transmitted bits are equiprobable.
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Unformatted text preview: 4. Determine the decision regions of the optimum vector decoder for the AWGN channel assuming that the transmitted bits are equiprobable Problem 2 (On-of keying, continued) Consider the transmission system with on-oF keying from the previous problem sheet. Determine the decision regions of the optimum vector decoder for the AWGN channel assuming that the transmitted bits are equiprobable. B±l, TPe. Digital Modulation 1 NavCom...
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