空时码概述

space-time coding

在第三代移动通信系统中,空时编码(space-time coding)技术是抗信道衰落和提高系统容量的一种新的编码方式。本文介绍了空时编码技术的由来和分类,并着重介绍了空时分组码的基本编解码算法。最后在SPW下对2发1收的正交空时分组码的编解码算法进行了仿真并给出了仿真结果。

Space-time coding technique is a new coding technique which can combat with channel attenuation, obtain diversity gain against fading and enhance the capacity in 3G wireless communication. This paper presents the origin and the category of the spacetime coding technique. The emphasis is put on the encoding and decoding algorithm of the Space-Time Block Code. Finally, we provide the simulation results of the encoding and decoding algorithm of the Orthogonal STBC with two transmitters and one receiver.