Title :
Joint trellis coded quantization/modulation
Author :
Fischer, Thomas R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Washington State Univ., Pullman, WA
fDate :
2/1/1991 12:00:00 AM
Abstract :
A joint source/channel coding system constructed using trellis coded quantization (TCQ) and trellis coded modulation (TCM) is described. Identical trellises are used in the TCQ and TCM systems, and a straightforward mapping of TCQ codewords to TCM symbols is presented which guarantees that Euclidean squared distance in the channel is commensurate with quantization mean-square error (MSE). Hence, likely TCM error events of small Euclidean distance cause only a small increase in overall source coding MSE
Keywords :
coding errors; encoding; modulation; Euclidean squared distance; channel coding; codewords; mean-square error; source coding; symbols; trellis coded modulation; trellis coded quantization; Bit rate; Channel coding; Convolutional codes; Delay; Euclidean distance; Mean square error methods; Modulation coding; Quantization; Source coding; Viterbi algorithm;
Journal_Title :
Communications, IEEE Transactions on
