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多发射天线的差分酉空时调制信号星座图
引用本文:程智慧,张勇,逢大鹏,雷向勇.多发射天线的差分酉空时调制信号星座图[J].通信技术,2009,42(10):41-42.
作者姓名:程智慧  张勇  逢大鹏  雷向勇
作者单位:1. 北京1481信箱,北京,102442
2. 中化国际招标有限责任公司,北京,100045
摘    要:在无法获得信道状态信息的瑞利衰落信道里,分集积是高信噪比场景下酉空时信号具有良好性能的首要指标。采用全旋转矩阵的方法获得了极大分集积非群空时码,仿真结果表明,在高信噪比下,该非群空时码性能优于传统的酉空时循环码。

关 键 词:多发射天线  非群空时码  差分酉空时

Signal Constellation of Differential Unitary Space-time Coding by Multi-Transmitting Antenna
CHENG Zhi-hui,ZHANG Yong,PANG Da-peng,LEI Xiang-yong.Signal Constellation of Differential Unitary Space-time Coding by Multi-Transmitting Antenna[J].Communications Technology,2009,42(10):41-42.
Authors:CHENG Zhi-hui  ZHANG Yong  PANG Da-peng  LEI Xiang-yong
Affiliation:CHENG Zhi-hui, ZHANG Yong, PANG Da-peng, LEI Xiang-yong (1P.O. Box1481, Beijing 102442, China;2Sinochem International Tendering Co.,Ltd. Beijing 100045, China)
Abstract:In Rayleigh fading channels, in which CSI (channel state information) is unavailable, diversity product is the key index for showing if the unitary space-time signals have good properties in high SNR. The technique of full-rotation-matrix is used to acquire the non-group space-time coding with maximum diversity product and the simulation results indicate that the non-group space-time coding proposed in this paper is of better performance than the traditional unitary cyclic space-time coding in high SNR.
Keywords:multi-transmitting antenna  non-group STC  differential unitary STC
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