TITLE:      Joint trellis coded quantization/modulation
AUTHORS:    T. R. Fischer and M. W. Marcellin
JOURNAL:    IEEE Transactions on Communications
ABSTRACT:

A joint source/channel coding system is constructed using trellis coded 
quantization (TCQ) and trellis coded modulation (TCM).  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 small increase in overall source 
coding MSE.