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Since the dynamic range of state metrics is limited due to the finitude of their quantization, it is needed to take an anti-overflow operation in the implementation of Turbo decoder. In traditional methods, plenty of calculations should be done for the anti-overflow protection in a single cycle, which greatly restricts the actual running clock frequency, thus to bring a strong impact on the final...
Turbo codes are widely used in many radio systems due to its superior performance and Software Radio (SR) is an emerging paradigm of the wireless communication system design due to its good flexibility and adaptability. However, since turbo decoding is computationally intensive, the SR implementation of turbo decoding is always challenging. In this paper, an efficient software implementation of the...
In this paper, we present a novel CRC-aided turbo equalization approach that exploits the cyclic redundancy check (CRC) to reduce computational complexity. The essential idea is that, during the iterative process, once a data block in the data frame is detected totally correct by CRC, we can set all the log likelihood ratio (LLR) of the bits in this block a fixed high value for the next iteration,...
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