TCM and 16QAM in Communication Systems
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In this communication system implementation, we have developed source code for TCM (Trellis Coded Modulation) combined with 16QAM modulation scheme. The development environment utilized MATLAB 7.5, where we implemented Viterbi algorithm with soft-decision decoding for efficient signal recovery. The TCM coding scheme integrates convolutional coding with modulation to achieve coding gain without bandwidth expansion, while 16QAM provides high spectral efficiency through its 16-point constellation diagram. The Viterbi decoder employs soft-decision metrics calculated from received signal points to determine the most likely transmitted sequence, significantly improving error correction performance compared to hard-decision decoding. These technical selections enable effective communication and data transmission while ensuring signal reliability and accuracy through optimized error correction capabilities.
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