【摘要】 介绍了适用于瑞利快变衰落信道不需信道参数估计的差分空时码研究进展。根据差分空时码的设计原理及性能标准,综合比较了现有方案的特点,揭示了这些方案之间的联系,并对差分空时码技术的应用前景进行了展望。更多还原

【Abstract】 An introduction of the current research developments onthe differential space-time codes, especially suitable for Rayleigh fast-fading channels where the fading coefficients are unknown, is proposed. In terms of the constellation design criteria, coding and decoding method, the existing schemes are compared and their connections are revealed. Finally, an overview of their applications in the future is given.更多还原