{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ref1_DataLink - Ref1 Question 1 A(7,4 cyclic code has a...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
[ Ref1 ] Question 1 A (7,4) cyclic code has a generator polynomial x 3 + x + 1. Information bits consisting of 1100 [most significant bit on the left] are to be coded and transmitted. i. Determine the transmitted code word. ii. The transmitted code word is corrupted such that the error cannot be detected. Give an example of a corrupted coded word such that error cannot be detected. Ans: a-i. ____1110 1011 | 1100000 1011 1110 1011 1010 1011 010 remainder Transmitted code word = 1100010 a-ii Transmitted word from (a) 1100010 ------ a Corrupted bit pattern similar to polynomial 1011 -------b Pattern with no error detected 1101001 ------- (a + b) ____1111 1011 | 1101001 1011 1100 1011 1110 1011 1011 1011 remainder = 0 ; error cannot be detected ------------------------------------ Question 2 A long-distance radio link uses a stop-and-wait ARQ strategy with half-duplex transmission and has the following characteristics: Data transmission rate = 5.4 kbps Frame size, n = 896 Information bits per frame, k = 784 Propagation delay, t d = 10 ms
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
If processing delays and acknowledgement transmission time can be neglected, determine the throughput : a. in the absence of errors and b.
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern