Efficient Communication in any Digital System using Convolutional Encoder and Viterbi Decoder for Constraint Length 9

Provided by: International Journal of Engineering and Advanced Technology (IJEAT)
Topic: Hardware
Format: PDF
Forward Error Correction (FEC) schemes are an essential component of wireless communication systems. Present wireless standards such as Third Generation (3G) systems, GSM, 802.11A, 802.16 utilize some configuration of convolutional coding. Convolutional encoding with Viterbi decoding is a powerful method for forward error correction. The Viterbi algorithm is the most extensively employed decoding algorithm for convolutional codes which comprises of minimum path and value calculation and retracing the path. The efficiency of error detection and correction increases with constraint length.

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