Comparative Analysis of Turbo and LDPC Codes for Reduced Storage and Retrieval of Data

Provided by: WSEAS
Topic: Data Management
Format: PDF
Turbo codes are the channel coding scheme used in wireless cellular networks as they are able to reach close to the Shannon limit. This paper proposes the use of turbo codes and LDPC codes for storage of data. Turbo encoding can be performed by using parallel Recursive Systematic Convolutional (RSC) encoder and an interleaver while turbo decoding is based on Bahl Cocke Jelinek and Raviv (BCJR) algorithm, the Maximum Aposterior Algorithm (MAP). Low Density Parity-Check (LDPC) codes encoding technique are based on the generator matrix value of the original code word to be identified.

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