On the performance of different channel pre-compensation techniques for uplink time division duplex MC-CDMA
On the performance of different channel pre-compensation techniques for uplink time division duplex MC-CDMA
复制标题
上行时分双工MC-CDMA不同信道预补偿技术的性能研究
DOI：
10.1109/vetecf.2003.1285142
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Andreas Springer
中科院分区：
文献类型：
--
作者：
I. Cosovic;M. Schnell;Andreas Springer
时分双工多载波码分多址（TDD/MC-CDMA）的工作前提是上行和下行信道条件之间存在很强的相关性。当使用TDD模式时，基于下行帧的信道估计，可以在移动站对上行信号的信道影响进行预补偿。本文的目的是对不同的TDD/MC-CDMA信道预补偿技术在上行链路上的性能进行比较。在此基础上，提出了保持传输功率与无预补偿时相同的功率约束条件。在不同的移动无线电环境和不同的传输帧长度下，分析了具有功率约束的不同预补偿技术。
Time division duplex multi-carrier code-division multiple-access (TDD/MC-CDMA) operates on the premise that there is a strong correlation between up- and downlink channel conditions. When using TDD mode, the effects of the channel on the uplink signal can be pre-compensated at the mobile station, based on the channel estimation from the downlink frame. The aim of this paper is to carry out a performance comparison of different TDD/MC-CDMA channel pre-compensation techniques in the uplink. Furthermore, the power constraint condition, that maintains the transmitted power the same as in the case without pre-compensation, is introduced. Different pre-compensation techniques with power constraint are analyzed in different mobile radio environments and for different lengths of the transmission frame.