The Comparison of BCH Decoding Methods and the Parameters Affecting the BCH Code Performance

In the communication field, channel coding was proposed to increase the data transmission rate and the transmitted data’s reliability. Error correction is an essential part of channel coding to improve data reliability. The Bose-Chaudhuri-Hocquenghem (BCH) code is one of the most efficient error-correcting codes. In this paper, a BCH coding method, and several methods to implement BCH decoding are introduced, and these decoding methods are compared with each other. Based on the principles of BCH codes, this study addresses two factors that may impact the performance of BCH codes, the redundancy bit length, and the minimum distance, as well as the relationship between them. This paper composes four flow charts and investigates the redundant bit lengths and minimum distances that may affect the performance of BCH codes during transmission. This paper is potentially beneficial for more extensive applications of BCH codes such as magnetic, optical storage systems, and new generations’ digital communication systems.