Optimal M-BCJR Turbo Decoding: The Z-MAP Algorithm
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Date
2011-10
Journal Title
Journal ISSN
Volume Title
Publisher
Scientific Research Publishing
Abstract
In this paper, we propose a novel idea for improvement performances of the leader M-BCJR algorithm functioning in low complexity. The basic idea consists to localize error instant possibility, and then increase the complexity around this moment. We also propose an easy and important idea for early localisation of erroneous moments. We call this new algorithm Z-MAP. The simulations show that the improvement of performances is significant. The performances of Z-MAP turbo decoding are so close to full MAP-BCJR performances. Furthermore, the complexity is the same that of the M-BCJR. So, Z-MAP is an optimal version of M-BCJR algorithm.
Description
Keywords
MAP-BCJR Algorithm, M-BCJR, Turbo Decoding, Complexity Reduction, Error Localisation Criterion
Citation
Wireless Engineering and Technology, 2011, 2, 230-234