Windowing for Multicarrier CDMA Systems

被引:1
|
作者
Tseng, Shun-Te [1 ]
Lehnert, James S. [2 ]
机构
[1] Realtek Semicond Corp, Hsinchu 300, Taiwan
[2] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA
关键词
MC-CDMA; multiple-access interference; windowing; MMSE; ACCESS INTERFERENCE SUPPRESSION; WAVE-FORM DESIGN; CHIP;
D O I
10.1109/TCOMM.2009.10.060625
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
The windows for achieving good multiple-access performance of multicarrier code-division multiple-access (MC-CDMA) systems employing minimum mean-squared error receivers are studied. The mean-squared error (MSE) is used as the performance metric for the optimization. In a simplified two-user system, the rectangular window is found to be optimum while regarded as an inferior window in orthogonal frequency-division multiplexing systems because of its spectral inefficiency. Necessary conditions are given for improving the performances of spectrally efficient windows by exploiting the cyclic prefix and oversampling in the frequency domain.
引用
收藏
页码:3154 / 3163
页数:10
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