







Vol.1 , No. 1, Publication Date: Jul. 7, 2014, Page: 1-7
[1] | Raad H. Thaher , Electrical Eng .Dept., College of Engineering, Al-Mustansiriyah University, Baghdad, Iraq. |
This paper presents a non-binary Turbo Trellis Coded Modulation (TTCM) decoder-based multidimensional 3-D (Maximum A Posteriori) MAP algorithm. The proposed system deals with Non-binary error control coding of the TTCM scheme for transmissions over the AWGN channel. The idea of Non-binary codes has been extended for symbols defined over rings of integers, which outperform binary codes with only a small increase in decoding complexity. The basic mathematical concepts are necessary for working with Non-binary error-correcting codes are Groups, Rings and Fields. The simulation results show that the performance of the non-binary TTCM decoding algorithm outperforms the binary decoding methods.
Keywords
Turbo Codes, TTCM, Non-Binary Error Correcting Codes, Groups, Rings Of Integers, MAP Algorithm
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