An Improved Group Space-Time Block Code Through Constellation Rotation
A new improved group space-time block code (G-STBC) based on constellation rotation for four transmit antennas was proposed. In comparison with the traditional G-STBC coding scheme, the proposed space-time code has longer code length and adopts proper rotation-based symbols, which can increase the minimum distance of space-time codes and thereby improve code gain and achieve full diversity performance. The simulation results verify that the proposed group space-time code can achieve better bit error performance than both the traditional group space-time code and other quasi-orthogonal space-time codes. Compared with Ma's full diversity full rate (FDFR) codes, the proposed space-time code also can achieve the same excellent error performance. Furthermore, the design of the new space-time code gives another new and simple method to construct space-time codes with full diversity and high rate in case that it is not easy to design the traditional FDFR space-time codes.
作 者： ZHANG Hong-wei ZHANG Hai-bin SONG Wen-tao LUO Han-wen LIU Xing-zhao 作者单位： Dept. of Electronic Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China 刊 名： 上海交通大学学报（英文版） EI 英文刊名： JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY（SCIENCE） 年，卷(期)： 2005 E-10(4) 分类号： P1 关键词： group space-time block code constellation rotation multiple-input multiple-output (MIMO) full diversity full rate