By Edward A. Lee, David G. Messerschmitt

This complement includes labored out ideas to the bankruptcy finish challenge units present in Digital verbal exchange, moment Edition, ISBN 0-7923-9391-0.

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Digital Communication: Solutions Manual

This complement comprises labored out recommendations to the bankruptcy finish challenge units present in electronic conversation, moment variation, ISBN 0-7923-9391-0.

Additional resources for Digital Communication: Solutions Manual

Sample text

I' -I o (a) +1 Figure 9-30. A trellis diagram and two corresponding events at the minimum distance of "2. 62 DIGITALCOMMUNICATION '-22. (a) The logarithm of the moment generation function is. 137). 224) and hence the Otemov bound is p. , - 1])

8-17. Assume that the threshold used in the slicer is halfway between the two signal levels.

So the 6-22. ~_[sm(Ol,,1+b. )+cos(Ol,,1+b. )] W(I -kT). 342) Since sin(~t) = 0 this becomes, using more trigonometric identities X (I) - • ~J sin(Ol,I)cos(b. ; ) + oos(Ol"t)sin(b. 345) from which the result follows. 153) 't = where K is an integer. 346) =cos(~t> =Qt-I =COS(~I;_I) . 153) we see that if bl; = bt - I then It = It-I. 348) and since k is off cos(4I,,)::: -cos(4I"_I) and again I" :::1"-1. tT). 352) The second summation follows similarly. 6-23. 354) while the imaginary part is where we have used problem 6-13.

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