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Circuit Design of QAM Signal Mapper for Rotationally Invariant I/Q TCM  

Kim, Chang-Joong (Hong-Ik University)
Lee, Ho-Kyoung (Hong-Ik University)
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Abstract
In this paper, we propose a signal generation method of rectangular QAM for rotationally invariant I/Q TCM. The proposed method consists of only digital logic gates without look-up table so that we can implement the system compactly. Our scheme can be applied to every rectangular QAM with the level higher than 64.
Keywords
QAM; signal mapper; rotationally invariant TCM; circuit implementation;
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