Review of Viterbi Decoder and Its Adequacy in Digital Communication

Convolutional coding with Viterbi decoding is a powerful method for error correction. It has been widely used in many wireless and satellite communication systems to improve the limited capacity of the communication channels. The Viterbi algorithm is the most commonly used convolutional decoding algorithm. In this research work, a deep research literature work will be done in various journals and articles of Viterbi Decoder. And trying to overcome the issues of noisy signal in satellite receivers by using this reviews. In many articles and journals authors discussed decoding speed, hardware overhead issue, but during long distance digital communication, there is less discussion exist. So for better understating in this review paper, a detailed literature survey is provided on various algorithms used for high speed and less complex design of Viterbi decoders and its decoding techniques and also discussed its hardware overhead of a Viterbi decoder.