Modelling of Convolutional Encoders with Viterbi Decoders for Next Generation Broadband Wireless Access Systems

Channel coding is known to be a form of modifying or scrambling a message between the source and the receiver so that the message is not corrupted before it is received; or in some cases known, the message may contain error. There are different forms of scrambling a message and detecting the error in the case there is one. The first is to request the message again called Automatic Repeat request (ARQ) and the other is to correct the message before getting to the destination Forward error correction (FEC). This research paper presents a system on the Convolutional encoding and the Viterbi decoding which is a Forward error correction method and the system was modelled using Matlab with special consideration for next generation broadband wireless access system.

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