MTCM and its applications in CDMA cellular systems

Multiple trellis coding containing with biorthogonal sequence modulation, and the application of this scheme to CDMA cellular systems for high-speed rate data transmission are presented in this paper. The reasons for us to study such schemes are: the important property of MTCM having significant coding gain over an uncoded system with less complexity and without reducing the data rate or requiring more band width, less phase jitter sensitivity, superior performance on the fading channel.