Viterbi decoder efficiency improving method for orthogonal frequency division modulation, involves predicting interference in decoded bit sequence due to error while decoding received signal by quality detection device

摘要

The method involves performing branch metrics computation on received data by a calculator (12). Paths for conditions of the Trellis of the Viterbi algorithm are stored, where the path is a bit sequence with decoded bits. Interference in the decoded bit sequence due to an error is predicted by a quality detection device while decoding a received signal and signal receiving process is terminated upon prediction of the interference. An independent claim is also included for a Viterbi decoder including a quality detection device.