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Four state binary QAM trellis code better than known codes |
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| Authors: | de Almeida C Palazzo R Jr |
| Affiliation: | Univ. Estadual de Campinas, Sao Paulo, Brazil; |
| Abstract: | Presents a new one-memory quaternary four-state trellis code, and its four-state binary equivalent code based on a QAM constellation which is 0.52 dB better than the four-state Ungerboeck code.< |
| Keywords: | |