On the performance of space time turbo trellis codes with adaptive power allocation

被引:0
|
作者
Li, Yonghui [1 ]
Vucetic, Branka [1 ]
Allan, J. Kingsley A. [1 ]
机构
[1] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
关键词
space time turbo codes; partial channel feedback; adaptive power allocation;
D O I
10.1109/LCOMM.2006.03029
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
It has been shown that when partial or full channel state information (CST) is available at the transmitter, the performance of a space time coded system can be dramatically improved by weighting the transmitted signals. In this letter, we evaluate the performance of space time turbo codes with adaptive power allocation when only partial CST is available at the transmitter. An optimum power allocation strategy for space time turbo trellis coded systems (STTTC) is derived by simulations. Simulation results show that the proposed power allocation can bring a gain of about 0.8dB gain relative to the conventional STTTC with equal power allocation.
引用
收藏
页码:132 / 134
页数:3
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