TECHNOLOGY Decoding Techniques of Error Control Codes called LDPC

This paper deals with the design and decoding of an extremely powerful and flexible family of error-control codes called low-density parity-check (LDPC) codes. LDPC codes can be designed to perform close to the capacity of many different types of channels with a practical decoding complexity. It is conjectured that they can achieve the capacity of many channels and, indeed, they have been shown to achieve the capacity of the binary erasure (BEC) channel, under iterative decoding. With help of this paper LDPC codes and their decoding techniques are explained with overview of LDPC