An Efficient Interpolation-Based Chase BCH Decoder

Error correction codes are the codes used to correct the errors occurred during the transmission of the data in the unreliable communication mediums. The idea behind these codes is to add redundancy bits to the data being transmitted so that even if some errors occur due to noise in the channel, the data can be correctly received at the destination end. Bose, Ray Chaudhuri, Hocquenghem (BCH) codes are one of the error correcting codes. The BCH decoder consists of four blocks namely syndrome block, chien search block and error correction block. This paper describes a new method for error detection in syndrome and chien search block of BCH decoder. The proposed syndrome block is used to reduce the number of computation by calculating the even number syndromes from the corresponding odd number syndromes.