Question

Assume that a bit sequence "10000000" has been transmitted through a transmission media using parity bits....

Assume that a bit sequence "10000000" has been transmitted through a transmission media using parity bits. Two bits have been altered in the path and the receiver has received it as "10000011". will the receiver be able to detect the error. Justify your answer.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Given bit sequence 10000000. Here the data is transmitted through the transmission media using parity bits.

Here parity bits are extra bits that are added to the original data to check the data integrity after transmission.

Note:- Usually, If the count of 1s in the data is an even number then the parity bit is 0 will be used and If the count of 1s in the data is an odd number then the parity bit is 1. Here all the data is 0s only so parity bit 1 is added.

Now given that two bits have been altered and the bit sequence after alteration became 10000011. So let's check from the side of the receiver can we find that data is altered or not. As we said before if the count of 1s in data is even then parity will be 0. But here we have 1 as the parity bit. by this, we can say that the data has been altered.

Here the receiver is able to detect the error.

But wait, In this case, it works but usually this parity checking to find errors won't work if the altered bits are more than 1.

Important:-

We can prove this by altering 3 bits now. Change all the last 3 bits to 1. Now the parity should be 1 and it's also there 1. It showing no alteration but we altered 3 bits there. So parity checking fails.

Parity checking doesn't support Multiple bit error detection.

***If you have any doubt please feel free to comment...thank You...please UPVOTE***

Add a comment
Know the answer?
Add Answer to:
Assume that a bit sequence "10000000" has been transmitted through a transmission media using parity bits....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 15. Assume a three-bit message is to be transmitted. To clear the encoder two zero-bits are appen...

    15. Assume a three-bit message is to be transmitted. To clear the encoder two zero-bits are appended after message. Thus 5 bits are fed into the encoder to produce 10 coded bits (codeword). Assume that the channel error probability is p-0.1. If we observe 10,01,10,11,00 in the receiver what is the most likely transmitted sequence? (Hint: use Viterbi algorithms) Received sequence10 01 10 10 15. Assume a three-bit message is to be transmitted. To clear the encoder two zero-bits are...

  • A sequence of received data bits is 011100101011. Check if an error exists in bit transmission,...

    A sequence of received data bits is 011100101011. Check if an error exists in bit transmission, assuming that the word was created using the even parity Hamming code.

  • Given the data-bits m = 11010110 , determine the number of k (parity-bits) by using Hamming...

    Given the data-bits m = 11010110 , determine the number of k (parity-bits) by using Hamming Code requirements. Illustrate the error detection and correction scheme using Hamming code method, for both the sender and receiver to detect an error at the following positions: a. 6 th bit position . b. 11 th bit position . Assume an odd-parity scheme for this problem. You must show detailed calculations to receive full-credit.

  • The probability that a bit transmitted through a digital transmission channel is received in error is...

    The probability that a bit transmitted through a digital transmission channel is received in error is 0.1. Assume that the transmissions are independent events, and let the random variable X denote the number of bits transmitted UNTIL the FIRST error. (a) What is the name and parameter(s) of the probability distribution of X? (b) Find mean and variance of X. (c) Find P(X ≥ 2). (d) Find P(X ≥ 4|X > 2).

  • Prob.4 A digital transmission system sends strings of binary (0 or 1) bits through the channel...

    Prob.4 A digital transmission system sends strings of binary (0 or 1) bits through the channel to the receiver. Assume that the probability of a bit error in the channel is 10-2 and that a string of 1000 bits is transmitted (a) Calculate the probability that more than three bit errors will occur in the 1000 transmissions (b) Use the Poisson approximation to calculate the probability that more than three bit errors wil occur in the 1000 transmissions. Prob.4 A...

  • Hamming & SECDED Code (a) For data, using 3 Hamming code parity bits determine the maximum...

    Hamming & SECDED Code (a) For data, using 3 Hamming code parity bits determine the maximum number of data bits that can be protected. (b) A SECDED encoded character has been retrieved, with the hexadecimal value of 409(base16). You may assume that the SECDED parity is even. 1. Was there an error in transmission? Explain your answer. 2. If there was an error, either correct it (reporting the corrected ASCII character) or explain why it could not be corrected (Show...

  • Student ID K-map to simply the function f e and "d" is the least si (3 points each) CO: 3] 3. Five bits of information and a parity bit are to be transmitted on a noisy channel. The trans...

    Student ID K-map to simply the function f e and "d" is the least si (3 points each) CO: 3] 3. Five bits of information and a parity bit are to be transmitted on a noisy channel. The transmittor a. the parity checker circuits using Only 3-imput logic gates where the unused inpunts)-if any- must be connected to either O or 1, as appropriate. (show the cireuit). (3 points for each circuit for a total of 6 points) ver have...

  • polynomial bo bit + b2 t2 +b3 t3 a) A binary string bobib2b3 is converted to...

    polynomial bo bit + b2 t2 +b3 t3 a) A binary string bobib2b3 is converted to a and is then coded by multiplying by the polynomial1+t2+t3. The resulting polynomial is then converted back to a binary string of length seven then transmitted. This string is received as 1011010, with bit order being lower powers to the left. Assume that at most one of these seven been corrupted in the transmission process (Ensure that you have determined the correct order of...

  • In the last module you learned a formula for calculating bit rate, R = b/t, that...

    In the last module you learned a formula for calculating bit rate, R = b/t, that is the number of bits divided by the time. This formula expresses the number of bits that are transmitted over a circuit in a given period of time. In practice, however, we are not only concerned with the number bits transmitted, but also with the number of data bits transmitted over a circuit. The data bits are those that the sender decides to send...

  • (a) Assume a Sliding Window with Go-Back N ARQ is being used on a transmission link...

    (a) Assume a Sliding Window with Go-Back N ARQ is being used on a transmission link with a 3-bit sequence number. The transmitter has previously sent frames with sequence numbers 0, 1 and 2. Is the transmitter allowed to send a frame with sequence number 3 if the frame with sequence number 2 has not been acknowledged? Explain your answer. (b) Assume a Sliding Window with Go-Back N ARQ is being used on a transmission link with a 3-bit sequence...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT