Detection of Carrier-Interferometry Code Based Overloaded Multi-carrier CDMA Signals

被引:0
|
作者
Li, Ming-Xiu [1 ]
Su, Yu T. [1 ]
机构
[1] Natl Chiao Tung Univ, Inst Commun Engn, Hsinchu 30010, Taiwan
关键词
MC-CDMA;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We consider a multi-carrier CDMA system based on carrier-interferometry (CI) sequences. The CI sequences are selected because of their outstanding cross-correlation property and are used to spread multi-stream data over transform (frequency) domain. The system is overloaded by allowing an user to transmit K data streams on N < K orthogonal subcarriers or time-frequency units. This paper investigates the problem of multi-stream detection for such an overloaded system. Several suboptimal receiver structures are studied and their performance in uncoded and coded systems is investigated. We discuss the effects and usages of the channel state information on the performance of various receivers.
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页数:5
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