(Lec-68) Block Coding | Data Communication Bangla Tutorial
0:00 - Why we need Block Coding?
1:49 - Block Coding Concept
#BlockCoding
The main problem with line coding is Redundancy. The Block Codes mainly operates on a block of bits. They make use of the preset algorithm, takes the group of bits, and then add a coded part to them in order to make them a large block.
This large block is then checked at the receiver after that receiver makes the decision about the validity of the received sequence.
Thus the block coding changes the block of m bits into the block of n bits where n is greater than m.
This block coding technique is also referred to as mB/nB encoding.
This technique overcomes the drawback of line coding and gives better performance.
Different versions of Block Coding are as follows:
4B/5B
8B/10B
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