The squared magnitude response of a linear channel, denoted by |H (f)| 2 is shown in Figure.

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The squared magnitude response of a linear channel, denoted by |H (f)| 2 is shown in Figure. Assume that the gap T = 1 and the noise variance ?2n = 1 for all sub-channels.

(a) Derive the formulas for the optimum powers P1, P2, and P3 allocated to the three sub channels of frequency bands (0, W1), (W1, W2), and (W2, W).

(b) Given that the total transmit power P = 10, l1 = 2/3 and l2 = 1/3, calculate the corresponding values of P1, P2, and P3.

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Communication Systems

ISBN: 978-0471178699

4th Edition

Authors: Simon Haykin

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Question Posted: Feb 09, 2011 06:53 AM

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The squared magnitude response of a linear channel, denoted by |H (f)| 2 is shown in Figure.

Question:

-W2 --W. W1 W2

Step by Step Answer:

a P P2 P3 P K r P2Kr 1 82 fo Adding Eqs 2 3 and 4 and then using Eq 1 ...View the full answer

Communication Systems

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