one way of detecting errors is to transmit data as a block of n rows of k bits per row and adding parity bits to each row and each column. the lower-right corner is a parity bit that checks its row and its column, will this scheme detect all single errors? double errors? triple errors?
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- One way of detecting errors is to transmit data as a block of n rows of k bits per row and adding parity bits to each row and each column. The lower-right corner is a parity bit that checks its row and its column, Will this scheme detect all single errors? Double errors? Triple errors?Assume that the following block of 16 bits is to be sent using a checksum of 8 bits. What is the pattern (codeword) sent? The block 0f 16 bits is 10101001 00111001.Under the Binary Convolutional Codes for a 100-bit codeword how many check bits are needed? What is the code rate in this example?
- To what extent may a message's parity bits be used to detect errors?If we use the 128-bit binary field extension F 128 to decode the 127-bit binary BCH code at a distance of 6, we get a total of 127 bits. How large is the code, and is there a minimum distance you can guarantee?Suppose the DES Mangler function mapped every 32-bit value to zero, regardless of the value of its input, what function would DES compute? Solve this question by answering the following 3 sub-questions. What is the result of each round? What is the result after the 16 rounds? Remind DES = Initial permutation + 16 rounds + swap halves + final permutation? Assume the original message is a 64-bit message, i.e., 1 2 3 4 … 64. Specify the bit positions by then end of these 4 operation. Must provide detailed explanation of the calculation steps.
- Suppose the DES Mangler function mapped every 32-bit value to zero, regardless of the value of its input, what function would DES compute? Solve this question by answering the following 3 sub-questions. What is the result of each round? What is the result after the 16 rounds? Remind DES = Initial permutation + 16 rounds + swap halves + final permutation? Assume the original message is a 64-bit message, i.e., 1 2 3 4 … 64. Specify the bit positions by then end of these 4 operation. Use 8x8 matrix for this. Must provide detailed explanation of the calculation steps.You receive the following data fragment: 0110 0111 1100 1111 0111 1101. You know that the protocol uses bit stuffing. Show the data after destuffingWhat is the minimum number of parity bits needed to protect a 256-bit word using SEC/DED Hamming code? Explain/show your work.
- Take into consideration the binary BCH code, which is 127 bits long and has a distance of 6 bits intended for it, and use the binary field extension F 128, which is 128 bits in size. How big is the code, and can you guarantee a certain minimum distance between entries?Computer Networks : Apply the CRC method on given data dividend= 100100 and number of zero’s appended should be 1 less than divisor and divisor in this case is 1101. When there is no error When even numbers of bits are corrupted, highlights the corrupted bits. When odd numbers of bits are corrupted, highlights the corrupted bits.What are the various problems that could arise in Non-Return to Zero (NRZ) encoding if a continuous stream of 0s or 1s is sent? Instead of writing an essay, try writing in bulleted form, briefly explaining what you understand from the findings.