A Novel Stopping Criterion for LTE-A High Speed Turbo Decoder

Authors:
Li Tan;Bin Hao;Gang Su
Affiliations:
Department of Electronics & Information Engineering, Huazhong University of Science & Technology Wuhan 430074, China +86-27-87792463;Department of Electronics & Information Engineering, Huazhong University of Science & Technology Wuhan 430074, China +86-27-87792463;Department of Electronics & Information Engineering, Huazhong University of Science & Technology Wuhan 430074, China +86-27-87792463
Venue:
Proceedings of the Second International Conference on Innovative Computing and Cloud Computing
Year:
2013

Citing 2
Cited 0

On the New Stopping Criteria of Iterative Turbo Decoding by Using Decoding Threshold

IEEE Transactions on Signal Processing
Iterative decoding of binary block and convolutional codes

IEEE Transactions on Information Theory

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Abstract

Since turbo code is adopted as a channel coding scheme by the LTE-A system, how to improve the decoding speed of turbo codes to match the high data rate requirement of LTE-A has become an important issue. In this paper, we present a novel stopping criterion which uses the statistics value of a set of multiple minimum soft decision values as a measure to stop the iterating process of turbo decoder. Simulation results show that our proposed criterion saves more iterations with little loss in BER when compared with several well-known existing criteria, which indicates it is suitable for designing high speed turbo decoder required by LTE-A systems.