Recent questions tagged hamming-code

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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 in Digital Logic by Abikkkaaa (43 points) | 27 views

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1 answer

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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 in Computer Networks by Na462 Loyal (6.5k points) | 36 views

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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 in Digital Logic by bhavnakumrawat5 (189 points) | 15 views

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4

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 in Computer Networks by bts (149 points) | 72 views

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1 answer

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Hamming Distance Question

asked Dec 31, 2017 in Computer Networks by hem chandra joshi Active (4.5k points) | 374 views

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6

Doubts
Plz someone tell the answer of this question

asked Dec 20, 2017 in Computer Networks by nikkey123 Active (1.5k points) | 46 views

+1 vote

0 answers

7

Computer_Network_Online

asked Dec 7, 2017 in Computer Networks by saxena0612 Boss (11.7k points) | 206 views

+2 votes

1 answer

8

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 (12.1k points) | 524 views

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1 answer

9

hamming code direction of parity bits From left or right?

asked Sep 23, 2017 in Computer Networks by Parshu gate Active (5k points) | 445 views

+1 vote

1 answer

10

Hamming Code

asked Aug 15, 2017 in Digital Logic by Beyonder Junior (633 points) | 345 views

+1 vote

1 answer

11

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 (25.1k points) | 88 views

+1 vote

1 answer

12

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 (40.5k points) | 385 views

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13

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 (1.3k points) | 98 views

+13 votes

2 answers

14

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 (359k points) | 2.9k views

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1 answer

15

Testbook
Assume x, y and z are n bit binary numbers then which of the following inequalities hold about Hamming Distance between them? A. HD(x,y)+HD(y,z)>=HD(x,z) B. HD(x,y)+HD(y,z)<=HD(x,z) C. HD(x,y) - HD(y,z)>=HD(x,z) D. None of the above

asked Oct 29, 2016 in Computer Networks by amitlko Junior (827 points) | 100 views

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1 answer

16

Tanenbaum Datalink layer Question, Hamming Code

asked Sep 14, 2016 in Computer Networks by Debashish Deka Veteran (57.4k points) | 790 views

+1 vote

1 answer

17

UGCNET-Dec2010-II-10
Encoding of data bits $0011$ into $7$-bit even Parity Hamming Code is $0011110$ $0101110$ $0010110$ $0011100$

asked Sep 5, 2016 in Computer Networks by makhdoom ghaya Boss (40.3k points) | 1.4k views

0 votes

2 answers

18

hamming code error detection and correction

asked Sep 1, 2016 in Computer Networks by Karthik Akula (443 points) | 2k views

+3 votes

1 answer

19

UGCNET-June2015-III-66
In a binary Hamming Code the number of check digits is r then number of message digits is equal to $2^r-1$ $2^r-r-1$ $2^r-r+1$ $2^r+r-1$

asked Aug 2, 2016 in Computer Networks by jothee Veteran (103k points) | 839 views

+2 votes

4 answers

20

ISRO2011-48
The hamming distance between the octets of 0xAA and 0x55 is 7 5 8 6

asked Jun 15, 2016 in Computer Networks by Isha Gupta (357 points) | 2k views

0 votes

2 answers

21

hamming code
how this relation (m+r+1)<=2^r comes?? please explain.

asked Feb 8, 2016 in Computer Networks by indrajeet Active (2k points) | 374 views

+1 vote

3 answers

22

Question on hamming code with even parity

asked Jan 30, 2016 in Computer Networks by shikharV Active (4.2k points) | 2.3k views

+15 votes

5 answers

23

GATE1994-9
Following $7$ bit single error correcting hamming coded message is received. $$\overset{7\qquad 6\qquad 5 \qquad 4\qquad 3 \qquad 2 \qquad 1}{\boxed{1 \qquad 0\qquad 0 \qquad 0 \qquad 1 \qquad 1 \qquad 0}} \qquad \overset{\textbf{bit No.}}{ ... (assuming that at most $1$ bit could be corrupted). If the message contains an error find the bit which is erroneous and gives correct message.

asked Oct 6, 2014 in Computer Networks by Kathleen Veteran (59.6k points) | 1.2k views

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