快衰落信道中的差分空时调制  

Differential Space-Time Modulation for Rapidly Fading Channels

作　　者：陈钟麟[1] 喻莉[1] 朱光喜[1] 胡臻平[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《电子学报》2005年第10期1781-1785,共5页Acta Electronica Sinica

基　　金：国家自然科学基金重大项目(No.603905405);国家"十五"863项目(No.2001AA123014)

摘　　要：利用基扩展模型,针对平坦快衰落信道提出了差分空时调制方法.它不仅可避免这类信道中难于实现的信道估计,而且可同时获得由多发射天线提供的满空间分集以及由快衰落信道提供的最大Doppler分集.仿真结果验证了设计的优越性.Relying on basis expansion model, this paper presents a differential space-time modulation method for flat rapidly fading channels. The design not only foregoes channel estimation being difficult in such channels, but also achieves the flail space diversity provided by multiple transmit antennas and the maximtrm Doppler diversity offered by rapidly fading channels simultaneously. Simulation results are given to support our development.

关 键 词：空时码 差分调制 快衰落信道 DOPPLER分集 

分 类 号：TN911.3[电子电信—通信与信息系统]