Amended fast fourier transform algorithm implementation for error correction codes in OFDM

摘要

Soft errors are menace to any kind of communication system. For error correction Orthogonal Frequency Division Multiplexing (OFDM) technique is wrought. OFDM is the most guaranteeing intonation method in contemporary machinery. It has been espoused by most wireless as well as wired communication standards. The notion is to operate a total number of carriers, spread recurrently over a frequency band, so that accessible bandwidth is urbanized to utmost efficiency. Errors are corrected. The tangible of this paper is to perform an efficient enactment of the OFDM system (i.e. transmitter and receiver) using Xilinx ISE and Modelsim. Hamming codes are sourced to obtain result by simulating all the blocks used in proposed paper with the comfort of filters. In this anticipated system modified Fast Fourier Transform (FFT) algorithm block is being designed to reduce errors, so that communication can be easily executed. The area and delay of proposed work is compared with existing Algorithm Based Fault Tolerance (ABFT) technique. Advantage of this paper can be seen in the diminishing of area. This method can be applied in all image, audio and also video processing.