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电子学报  2000 

Ricean衰落信道下一种正交多载波CDMA系统的性能

, PP. 8-11

Keywords: 多载波,码分多址,Ricean衰落信道

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Abstract:

本文提出了一种新的多载波码分多址(MC-CDMA)系统.与传统系统相比,其主要区别是采用多个并行MC-CDMA分支,每一个分支用一组正交子载波进行调制.在每个分支上,使用相同扩频序列的不同码片调制子载波.这种系统能更有效地利用传输带宽,实现频率分集.由于该系统降低了每个子载波上的数据速率,扩频序列更容易同步.最后给出了系统在Ricean衰落信道下的性能分析.

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