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- Title
An Efficient Early Iteration Termination for Turbo Decoder.
- Authors
Salija, P.; Yamuna, B.
- Abstract
Turbo code finds wide applications in mobile com- munication, deep space communication, satellite communica- tion and short-range communication despite its high compu- tational complexity and iterative nature. Realizing capacity approaching turbo code is a great achievement in the field of communication systems due to its efficient error correction ca- pability. The high computational complexity associated with the iterative process of decoding turbo code consumes large power, introducing decoding delay, and reducing the through- put. Hence, efficient iteration control techniques are required to make the turbo code more power efficient. In this paper, a simple and efficient early iteration termination technique is introduced based on absolute value of the mean of extrinsic information at the component decoders of turbo code. The simulation results presented clearly show that the proposed method is capable of reducing the average number of iter- ations while maintaining performance close to that of fixed iteration termination. The significant reduction in iteration achieved by the method reduces decoding delay and complex- ity while maintaining Bit Error Rate performance close to standard fixed iteration turbo decoder.
- Subjects
TURBO codes; MOBILE communication systems; TELECOMMUNICATION satellites; ASTRONAUTICAL communication systems; EXTRINSIC information transfer charts; COMPUTATIONAL complexity
- Publication
Journal of Telecommunications & Information Technology, 2016, Issue 2, p113
- ISSN
1509-4553
- Publication type
Article
- DOI
10.26636/jtit.2016.2.729