上海交通大学学报(英文版)
上海交通大學學報(英文版)
상해교통대학학보(영문판)
JOURNAL OF SHANGHAL JIAOTONG UNIVERSITY
2004年
1期
73-77
,共5页
adaptive coded modulation%turbo coded modulation (TuCM)%spectral efficiency
A practical adaptive turbo coded modulation (TuCM) scheme was proposed and its adaptive method was described. With some hardware considerations, a suboptimal optimization algorithm that the number of fading regions is variable was put forward. Furthermore, the cutoff fade depth of power adaptation was modified to reduce the interruption probability. The results show that the proposed adaptive TuCM comes within 3 dB of Rayleigh fading channel capacity, and exhibits about 3 dB power gain relative to the conventional adaptive trellis-coded modulation (TCM), and is easy to realize by hardware.
