Signal space diversity: A power- and bandwidth-efficient diversity technique for the Rayleigh fading channel

被引：708

作者：

Boutros, J ^{[1
]}

Viterbo, E

机构：

[1] Ecole Natl Super Telecommun Bretagne, Dept Commun, F-75634 Paris 13, France

[2] Politecn Torino, I-10129 Turin, Italy

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 1998年 / 44卷 / 04期

关键词：

diversity; fading; lattices; number fields; QAM modulation; rotation;

D O I：

10.1109/18.681321

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The increasing need for high data-rate transmissions over time-or frequency-selective fading channels has drawn attention to modulation schemes with high spectral efficiency such as QAM, With the aim of increasing the "diversity order" of the signal set we consider multidimensional rotated QAM constellations. Very high diversity orders can be achieved and this results in an almost Gaussian performance over the fading channel, This multidimensional modulation scheme is essentially uncoded and enables one to trade diversity for system complexity, at no power or bandwidth expense.

引用

页码：1453 / 1467

页数：15