Scalable Globally-Coupled Low-Density Parity Check Codes

Abstract

This paper presents a technique to scale up an LDPC code to any desired block length. Under certain constraints, the scaled LDPC code results in a special case of globally-coupled-LDPC code. The proposed scheme can construct globally-coupled-LDPC codes from any short LDPC codes. A design example targeting for NAND flash memory applications is addressed and simulated. The results show the feasibility of constructing a structural long LDPC code by scaling from a short code.