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Journal of Applied Sciences

Year: 2008 | Volume: 8 | Issue: 16 | Page No.: 2867-2873
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Authors

Fatemeh Afghah

Mehrdad Ardebilipour

Abolfazl Razi

Keywords

Research Article

Fast Turbo Codes Concatenated With Space-Time Block Codes

Fatemeh Afghah, Mehrdad Ardebilipour and Abolfazl Razi
In this study, we investigate a new method for turbo codes which is dividing turbo encoder and decoder into several parallel coding and decoding blocks. These blocks work simultaneously and yield to much faster coding scheme in comparison with classical turbo codes. We compare simulation results of these new turbo codes with classical turbo codes to demonstrate that their performance is comparable with classical turbo codes, albeit they are much faster. Also, we introduce a new system by concatenating this fast turbo coding as outer code with Alamouti`s G2 space-time block coding scheme as inner code to achieve the benefits of both techniques including acceptable diversity and coding gain as well as short coding delay. We consider the performance of this new system in the block Rayleigh fading channel.
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