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This paper describes a turbo decoder for Long Term Evolution (LTE) standard, release 8, using a Max Log MAP algorithm. The Forward Error Correction (FEC) block dimensions, as indicated in the standard, are inside a range of 40 to 6144 bits. The coding rate is 1/3, the puncturing block not being taken into discussion here. The number of turbo iterations is variable, but in this study it was usually set to 3. The turbo decoder is implemented on a Xilinx Virtex-5 XC5VFX70T Field Programmable Gate Array (FPGA).
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