Question Details

(solution) We now consider the influence of AWGN and polarity reversals on the bit error probability for NRZI.


We now consider the influence of AWGN and polarity reversals on the bit error probability for NRZI. Consider the information bit sequence of Problem 6.1, assume that they are equally likely and that V 2 T b = 1 joule. Draw the signal space diagram for the two signals used in NRZI. √ The sampled output of the matched filter r k = s k + w k , where s k =± E b , in general is due to the signal transmitted and w k is AWGN. What is the output sequence { s k } for the given information bit sequence? Now assume that the noise sample sequence, { w k }, is: {−0.4, −1.2, 0.2, 0.2, −0.4, −0.2, −0.8, 1.2, 0.2, 0.0}. Determine the complete sampled output sequence { r k }. Based on these { r k }, what are the detected bit estimates { d ˆ k } and the corresponding { b ˆ k }? Note, particularly, the errors in { d ˆ k } and { b ˆ k }. Based on this can you make a general statement about the bit error probability? Now assume that a polarity reversal has occurred at t = 4 T b . What is the { s k } sequence now? Given the noise samples of (c) what is the { r k } sequence and then what are the { d ˆ k }, { b ˆ k } sequences?

 


Solution details:

Pay using PayPal (No PayPal account Required) or your credit card . All your purchases are securely protected by .
SiteLock

About this Question

STATUS

Answered

QUALITY

Approved

DATE ANSWERED

Sep 13, 2020

EXPERT

Tutor

ANSWER RATING

GET INSTANT HELP/h4>

We have top-notch tutors who can do your essay/homework for you at a reasonable cost and then you can simply use that essay as a template to build your own arguments.

You can also use these solutions:

  • As a reference for in-depth understanding of the subject.
  • As a source of ideas / reasoning for your own research (if properly referenced)
  • For editing and paraphrasing (check your institution's definition of plagiarism and recommended paraphrase).
This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student.

NEW ASSIGNMENT HELP?

Order New Solution. Quick Turnaround

Click on the button below in order to Order for a New, Original and High-Quality Essay Solutions. New orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

WE GUARANTEE, THAT YOUR PAPER WILL BE WRITTEN FROM SCRATCH AND WITHIN A DEADLINE.

Order Now