Recent questions tagged hamming-code

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Morris Mano Edition 3 Exercise 7 Question 42 (Page No. 306)
It is necessary to formulate the hamming code for four data bits $D _3, D _5, D _6 and D _7$ together with three parity bits $P _1, P _2 and P _3$. evaluate the 7-bit composite code word for the data word 0010. Evaluate ... error detection in the code. Assume that error occurs in the bit $D _5 and P _2$. Show how the error is detected.

asked Apr 6 in Digital Logic by ajaysoni1924 Boss (10.2k points) | 19 views

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Morris Mano Edition 3 Exercise 7 Question 41 (Page No. 306)
How many parity check bits must be included with the data word to achieve single-bit error correction and double error correction when data words are as follows: 16 bits 32 bits 48 bits

asked Apr 6 in Digital Logic by ajaysoni1924 Boss (10.2k points) | 24 views

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Morris Mano Edition 3 Exercise 7 Question 40 (Page No. 306)
A 12-bit hamming code word 8-bits of data and 4 parity bits are read from the memory. What was the original 8-bit data word that was written into the memory if the 12-bits word read out are as follows: 000011101010 101110000110 101111110100

asked Apr 6 in Digital Logic by ajaysoni1924 Boss (10.2k points) | 12 views

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Morris Mano Edition 3 Exercise 7 Question 39 (Page No. 305)
Given that 11-bit data word 11001001010, generate the 15-bit hamming code word.

asked Apr 6 in Digital Logic by ajaysoni1924 Boss (10.2k points) | 6 views

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Morris Mano Edition 3 Exercise 7 Question 38 (Page No. 305)
Given the 8-bit data word 01011011, generate the 13-bit composite word for the Hamming code that corrects the single bit error and detects double bit errors.

asked Apr 6 in Digital Logic by ajaysoni1924 Boss (10.2k points) | 25 views

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Andrew S. Tanenbaum Edition 5th Exercise 3 Question 12 (Page No. 252)
Suppose that data are transmitted in blocks of sizes 1000 bits. What is the maximum error rate under which error detection and retransmission mechanism (1 parity bit per block) is better than using Hamming code? Assume that bit errors are independent of one another and no bit error occurs during retransmission.

asked Mar 16 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 17 views

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Andrew S. Tanenbaum Edition 5th Exercise 3 Question 10 (Page No. 252)
A 12-bit Hamming code whose hexadecimal value is 0xE4F arrives at a receiver. What was the original value in hexadecimal? Assume that not more than 1 bit is in error.

asked Mar 16 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 14 views

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Andrew S. Tanenbaum Edition 5th Exercise 3 Question 9 (Page No. 252)
Sixteen-bit messages are transmitted using a Hamming code. How many check bits are needed to ensure that the receiver can detect and correct single-bit errors? Show the bit pattern transmitted for the message 1101001100110101. Assume that even parity is used in the Hamming code.

asked Mar 16 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 20 views

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Andrew S. Tanenbaum Edition 5th Exercise 3 Question 8 (Page No. 252)
To provide more reliability than a single parity bit can give, an error-detecting coding scheme uses one parity bit for checking all the odd-numbered bits and a second parity bit for all the even-numbered bits. What is the Hamming distance of this code?

asked Mar 16 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 20 views

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hamming code
what is approach to solve this type of question?

asked Jan 19 in Computer Networks by Rahul_Rathod_ Junior (561 points) | 97 views

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MadeEasy Test Series 2019: Digital Logic - Hamming Code
plz tell the answer

asked Jan 12 in Digital Logic by suneetha Junior (561 points) | 71 views

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Hamming Error Correction- Madeeasy 2019
someone please post detailed solution pic for this procedure- I am getting bits 1 and 2 as errorneous.

asked Jan 9 in Computer Networks by Markzuck Junior (643 points) | 195 views

+1 vote

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13

#CN Forouzan Error Correction Hamming Code
If the Hamming distance between a dataword and the corresponding codeword is three, there are _____ bits in error. A) 5 B) 4 C) 3 D) none of the above

asked Nov 19, 2018 in Computer Networks by iarnav Loyal (9.7k points) | 217 views

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14

GATE-ECE-2018
Consider a binary channel code in which each codeword has a fixed length of 5 bits. The Hamming distance between any pair of distinct codewords in this code is at least 2. The maximum number of codewords such a code can contain is _________.

asked Nov 14, 2018 in Digital Logic by aditi19 Active (3.7k points) | 296 views

+1 vote

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GATEBOOK-2019-CN1-5
Minimum hamming distance for detection of $3$ errors or correction of $2$ errors. $5$ $4$ $6$ $3$

asked Oct 28, 2018 in Computer Networks by GATEBOOK Boss (17.3k points) | 165 views

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1 answer

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GATEBOOK-2019-CN1-15
Sixteen-bit messages are transmitted using a Hamming code. Check bits needed (minimum) to ensure that the receiver can detect and correct single-bit errors is _____?

asked Oct 28, 2018 in Computer Networks by GATEBOOK Boss (17.3k points) | 142 views

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17

Hamming code
A 12-bit Hamming code word 000011101010 containing 8-bits of data and 4 priority bits is read from memory. What is the original 8 bit data word

asked Oct 2, 2018 in Digital Logic by Abikkkaaa (43 points) | 229 views

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18

Hamming Code
Sixteen-bit messages are transmitted using a Hamming code. How many check bits are needed to ensure that the receiver can detect and correct single-bit errors? Show the bit pattern transmitted for the message 1101001100110101. Assume that even parity is used in the Hamming code. My Solution:- But Correct answer is :- 011110110011001110101 I don't know what i am doing wrong ?

asked Sep 3, 2018 in Computer Networks by Na462 Loyal (8.7k points) | 346 views

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19

Doubt
Given a binary string , in which direction should we place the parity bits , starting from left to right or right to left? Does both give same result Ex : Data is 1001 1. P1 P2 1 P4 0 0 1 https://www.youtube.com/watch?v=tBacTPPNIrk 2. 1 0 0 P4 1 P2 P1 https://www.youtube.com/watch?v=1A_NcXxdoCc&t=109s Which is correct?

asked Jul 21, 2018 in Digital Logic by bhavnakumrawat5 (205 points) | 23 views

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20

Error detection
Let C be a binary linear code with minimum distance 2t + 1 then it can correct upto _____ bits of error. A t + 1 B t C t - 2 D t / 2

asked Jun 15, 2018 in Computer Networks by bts (159 points) | 175 views

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21

Hamming Distance Question

asked Dec 31, 2017 in Computer Networks by hem chandra joshi Active (4.7k points) | 560 views

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22

Doubts
Plz someone tell the answer of this question

asked Dec 20, 2017 in Computer Networks by nikkey123 Active (1.5k points) | 53 views

+1 vote

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23

Computer_Network_Online

asked Dec 7, 2017 in Computer Networks by saxena0612 Boss (12.1k points) | 256 views

+2 votes

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24

hamming distance
To provide more reliability than the Single Parity Bit technique, a new error-detecting scheme has been proposed. The scheme uses first parity bit for checking all the odd numbered bits and a second parity bit for all the even numbered bits. What is the (minimum) Hamming distance of this code ?

asked Oct 18, 2017 in Computer Networks by just_bhavana Boss (12.4k points) | 731 views

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25

hamming code direction of parity bits From left or right?
Given a binary string , in which direction should we place the parity bits , starting from left to right or right to left? Does both give same result Ex : Data is 1001 1. P1 P2 1 P4 0 0 1 2. 1 0 0 P4 1 P2 P1 Which is correct?

asked Sep 23, 2017 in Computer Networks by Parshu gate Active (5.1k points) | 651 views

+3 votes

2 answers

26

Hamming Code

asked Aug 15, 2017 in Digital Logic by Beyonder Junior (653 points) | 631 views

+1 vote

1 answer

27

Cn Linear block code
Which of the following are linear block codes?Remember exor of two valid linear block codes is a valid codeword a) CRC b) Hamming code c) Simple parity d)All e)None

asked Aug 15, 2017 in Computer Networks by rahul sharma 5 Boss (27.2k points) | 114 views

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28

Hamming Distance, Linear Block Codes
Following text and screenshot are taken from Forouzan's CN book: "In a linear block code, the exclusive OR (XOR) of any two valid codewords creates another valid codeword." My question is EXoring of which two codewords in Table 10.2 will create first codeword 00000?

asked Jul 31, 2017 in Computer Networks by Manu Thakur Boss (42.7k points) | 497 views

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29

coahing
For the 7 bit hamming code ,calculate the probability of decoding to a wrong codeword if the code is used for a channel with bit error probability 0.2 ?

asked May 4, 2017 in Computer Networks by Kuldeep Pal Active (1.5k points) | 104 views

+15 votes

2 answers

30

GATE2017-2-34
Consider the binary code that consists of only four valid codewords as given below: 00000, 01011, 10101, 11110 Let the minimum Hamming distance of the code $p$ and the maximum number of erroneous bits that can be corrected by the code be $q$. Then the values of $p$ and $q$ are $p=3$ and $q=1$ $p=3$ and $q=2$ $p=4$ and $q=1$ $p=4$ and $q=2$

asked Feb 14, 2017 in Digital Logic by Arjun Veteran (400k points) | 3.9k views

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