Unformatted text preview: ் . Assume equal prior probabilities and perfect phase and frequency synchronization in the coherent detection. a) Find the general form of error probability ܲ as a function of . Assume the noise variance is ܰ /2 and signal energy is ܧ. b) For ൌ 1/5 and ܧ/ܰ ൌ 10 ݀ܤ, find ܲ and compare it to the case when ൌ 0. c) When ൌ 1/5, how much in dB should you increase the signal energy (ܧ) to achieve the same error probability as when ൌ 0 and ܧ/ܰ ൌ 10 ݀ܤ? (You may need a computer to find the answer.)...
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This note was uploaded on 04/03/2010 for the course EE 564 at USC.