Low density parity check coding

Abstract

Since their rediscovery by Mackay Neal in 1993 [11], LDPC codes have been an integral part of the coding field, and by now, they have been in many standards and are suggested for others. In terms of performance, many practical results have shown that those codes are actually very performant at rates that are within a fraction of capacity. In this Master Project report, the general theory of LDPC codes, including construction, encoding and decoding procedures, is reviewed in the first chapters. In the simulation chapter, we consider the evaluation of error performance of short to medium length LDPC codes with BPSK modulation through the binary AGWN channel.