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VHDL for Turbo Encoder and Decoder Vesion 2
4.0
Turbo Decoder Release 0.3 ========================= MAIN FEATURES ------------- * Double binary, DVB-RCS code * Soft Output Viterbi Algorithm * MyHDL cycle/bit accurate model * Synthesizable VHDL model MyHDL MODEL ----------- For help : python launchTurbo.py -help For default execution : python launchTurbo.py It writes the Bit Error Rate for each iteration into a file: turbo0.txt <- BER before decoding turbo1.txt <- BER for iteration #1 turbo2.txt <- BER for iteration #2 turbo3.txt <- BER for iteration #3 VHDL MODEL ---------- The top-level entity is "turboDec". All the turbo decoder parameters are stored in the "turbopack.vhd" file. You can modify: - the code rate (
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RSC Reed Solomon encoder for turbo encoder
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VHDL Library - great help for embedded programmers, VHDL language reference. Integrity - we encourage you to contribute together, you can add or delete in the library, this is the best way to improve it. Educational - here is a set of design examples, which can show some of the most important parts of the language, and better understand the functional modules needed to complete a VHDL design. The large design can be decomposed into small modules. When some modules have the same function, we can save the development time by sharing the same function module.
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vhdl code for turbo encoder ( LTE Process)
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Turbo codes have recently been considered for energy-constrained wireless co mmunication applications, since they facilitate a low transmission energy consumption. How-ever, in order to reduce the overall energy consumption, lookup table-log-BCJR (LUT-Log-BCJR) architectures having a low processing energy consumption are required. In this paper, we decompose the LUT-Log-BCJR architecture into its most funda-mental add compare select (ACS) operations and perform them using a novel low-complexity ACS unit. We demonstrate that our architecture employs an order of magnitude fewer gates than the most recent LUT-Log-BCJR architectures, facilitating a 71% energy consumption reduction. Compared to state-of-the-art max-imum logarithmic Bahl-Cocke-Jel inek-Raviv implementations, our approach facilitates a 10% reduction in the overall energy consumption at ranges above 58 m.
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Matlab Turbo source code
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This is the turbo coder and decoder by matlab source code. this source coder simulate all about the turbo encoder and de coder. I hope it helpful for all students.
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