Question: b) (8 marks) Given a two-branch diversity combining receiver. The channel of each diversity branch takes a value of I with probability of 0.8, and

b) (8 marks) Given a two-branch diversity combining receiver. The channel of each diversity branch takes a value of I with probability of 0.8, and takes a value of 0.I with a probability of 0.2. The two branches are independent. The modulation used is DPSK, ( P..DPSx [Gaussian ] = =e") and y = E, IN. = 20 1) (3 marks) Determine the average error probability of a maximum ratio combining diversity receiver (MRC). ii) (5 marks) Determine the average error probability of a "selective-diversing" receiver. Compare the two results

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1. Identify your reference point when making a decision based on an element of risk.

3. If there are reasonable alternatives, think about your decisions based on the different reference points and see if there are any contradictions in the decisions.

4. It is only at this point that you can give the problem your full attention in relation to the various ways you have framed the problem.