# Recent questions tagged hamming-code 1 vote
1
Consider a code with only four valid code words: $0000000000$, $0000011111$, $1111100000$, and $1111111111$. This code has distance $5$. If the code word arrived is $0000000111$ then the original code word must be _______ $0000011111$ $0000000000$ $1111100000$ $1111111111$
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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 $P _1, P _2 and P _3$ ... to include the double bit error detection in the code. Assume that error occurs in the bit $D _5 and P _2$. Show how the error is detected.
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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
1 vote
4
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
5
Given that 11-bit data word 11001001010, generate the 15-bit hamming code word.
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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.
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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.
1 vote
8
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.
9
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.
1 vote
10
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?
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what is approach to solve this type of question?
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someone please post detailed solution pic for this procedure- I am getting bits 1 and 2 as errorneous.
14
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
15
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 _________.
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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
17
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 ?
18
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?
1 vote
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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
1 vote
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Plz someone tell the answer of this question
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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 ?
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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?
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1 vote
26
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
1 vote
27
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?