【摘要】 在快速移动环境中,有时接收方无法获得准确的信道状态信息(CSI),差分空时技术可在该信道环境下实现有效译码。讨论了几种主要的差分空时技术的编译码方法,对其性能进行了分析和比较,并指出了它们各自的优劣和适用范围。更多还原

【Abstract】 Satisfied performance can be obtained by using differential space-time techniques when the perfect CSIis not available at the receiver.In this p aper,several differential space-time modulation techniques are described.Then,t he performances of these techniques are analyzed and compared by simulation. Fin ally,the advantages,disadvantages and applications of each technique are shown.更多还原