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A Simple Efficient Stopping Criterion for Turbo Decoder
Young-Sup Kim, and Sung-Woong Ra
Abstract :	The performance of a turbo decoder depends strongly on the number of iterations in its decoding process. It is necessary to stop the decoding process at an appropriate moment to alleviate the serious burden, in terms of both the computational speed and latency, part of which is associated with too many iterations. In this letter, we introduce a criterion for finding the opportune moment to stop the decoding process, called a hard decision aided criterion based on bit interleaved parity, which is known to have much simpler hardware logic, compared with other schemes, and does not lead to any significant performance degradation.
Key word :	Turbo decoding, iterative decoding, HDA.
DOI :	http://dx.doi.org/10.4218/etrij.06.0206.0113
Cite this :	Young-Sup Kim, and Sung-Woong Ra, "A Simple Efficient Stopping Criterion for Turbo Decoder," ETRI Journal, vol. 28, no. 6, Dec. 2006, pp. 790-792. http://dx.doi.org/10.4218/etrij.06.0206.0113
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