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Principles of Turbo Codes and Their Application to Mobile Communications
Akihisa USHIROKAWA Toshihiko OKAMURA Norifumi KAMIYA Branka VUCETIC
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/07/25
Print ISSN: 0916-8508
Type of Manuscript: INVITED PAPER (Special Section on Fundamentals of Multi-dimensional Mobile Information Network)
Turbo codes, iterative decoding, MAP, SOVA, mobile communication,
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This paper gives an overview of Turbo codes principles, performance, and design issues for practical application. As fundamentals of Turbo codes, encoder structure, interleaver, and iterative decoding are explained. The performance is analyzed through their weight distribution, and the analysis gives code design rules for component codes. Practical decoding algorithms are presented in addition to MAP algorithm. Design issues are discussed for mobile communications as an example of practical application. Finally, research trends are briefly mentioned.