Design of Space-Frequency Trellis Codes Based on Trace Criterion
Guangguo Bi · 2006
By analyzing the relation between space-frequency trellis codes(SFTC) and space-time trellis codes(STTC),it is demonstrated that the trace criterion can be used in the design of SFTCs although this criterion is originally proposed for STTCs.Simulation results show that the codes designed by the trace criterion outperform other known SFTCs.In addition,the code performance can be further improved by enhancement of the trace criterion.Effects of path delay,interleaving and encoder states on the code performance are analyzed.