Abstract
Since trellis-coded modulation (TCM) was introduced, it was quickly adopted in modem standards. Unlike blind reconstruction for normal channel coding, blind reconstruction for TCM codes not only requires identifying the correct generator matrix, but also the correct type of constellation mapping. So far this has seldom been reported. This study proposes a method which recognises the generator matrix and the mapping mode of TCM codes. Based on its construction and properties, the generator matrix can be correctly identified by considering the characteristics of the actual communication system. That is, its Euclidean distance and Hamming distance are considered to discover the mapping mode. Simulations prove that the methodology can realise the blind identification of TCM codes efficiently.
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