Modeling and Simulation of a Turbo Encoder and Decoder for Wireless Communication Systems
نویسنده
چکیده
This report presents information on modeling and implementation of turbo codes. Turbo coding is a very powerful error correction technique that has made a tremendous impact on channel coding in the last few years. It outperforms all previously known coding schemes by achieving near Shannon limit error correction using simple component codes and large interleavers. The use of turbo codes enhances the data transmission efficiency in digital communications systems. Turbo codes can also be used to provide a robust error correction solution to combat channel fading.This report gives a brief overview of the encoding and decoding mechanism of the turbo coding scheme, describes the maximum a posteriori (MAP) algorithm in detail, models the compuation using synchronous dataflow and discusses a few implementation issues of the MAP algorithm.
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