Modern error correcting codes for 4G and beyond: Turbo codes and LDPC codes

摘要

Modern error correcting codes are used in 4G and are proposed for future wireless cellular networks for achieving improved channel error correcting capability. Turbo codes, and their improved variants with better error correcting capabilities, and LDPC codes are near Shannon limit channel codes and are used in such systems. This paper focuses on error correcting codes used in present and future generations of mobile communication systems for improving system performance. These systems have higher data rates and low energy per bit. The comparative performance evaluation of Turbo codes and LDPC codes and their suitability for future cellular network is explored in the paper. This comparison will be useful in the selection of error correcting codes for future mobile communication systems.