CSE3213_06_LineBlockCodingW2012_Part_4

CSE3213_06_LineBlockCodingW2012_Part_4 - 16 Example [ 4B/5B...

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Unformatted text preview: 16 Example [ 4B/5B block code ] Every 4 bits of data is encoded into a 5-bit code. The 5-bit codes are normally line coded using NRZ-invert (longer sequences of 1 are tolerated)!!! The selection of the 5-bit code is such that each code contains no more than one leading 0 and no more than two trailing 0s. Therefore, when these 5-bit codes are sent in sequence, no more than three consecutive 0s are encountered. 4B/5B coding is used in the optical fiber transmission system (FDDI). Block Coding (cont.) 11010 11010 1100 01010 01010 0100 11011 11011 1101 01011 01011 0101 11100 11100 1110 01110 01110 0110 11101 11101 1111 01111 01111 0111 10111 10111 1011 10101 10101 0011 10100 10100 01001 01001 11110 11110 Code 10110 10110 1010 0010 10011 10011 1001 0001 10010 10010 1000 0000 Code Data Data 11010 11010 1100 01010 01010 0100 11011 11011 1101 01011 01011 0101 11100 11100 1110 01110 01110 0110 11101 11101 1111 01111 01111 0111 10111 10111 1011 10101 10101 0011 10100 10100 01001 01001 11110 11110...
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This note was uploaded on 02/14/2012 for the course CSE 3213 taught by Professor A during the Winter '10 term at York University.

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CSE3213_06_LineBlockCodingW2012_Part_4 - 16 Example [ 4B/5B...

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