Comparison of time and frequency domain interpolation implementations for MB-OFDM UWB transmitters

被引:0
|
作者
Fotopoulou, Eleni [1 ]
Thanou, Dorina [2 ]
Stouraitis, Thanos [1 ]
机构
[1] Univ Patras, Dept Elect & Comp Engn, GR-26110 Patras, Greece
[2] Ecole Polytech Fed Lausanne, Swiss Fed Inst Tech, Sch Comp & Commun Sci, Lausanne, Switzerland
关键词
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
This paper investigates the effect of time-domain (TD) and frequency-domain (FD) interpolation on the performance of a Multi-Band (MB) Orthogonal Frequency Division Multiplexing (OFDM) Ultra-Wideband (UWB) system. We introduce a FD interpolator implemented by a radix-8 512-point IFFT architecture for applications on MB-OFDM UWB transmitters. For the specific application where the interpolation factor is fixed to four, the FD interpolator outperforms the TD interpolator implemented with digital low-pass FIR filters in terms of computational complexity. On the other hand simulation results show that FD implementation degrades the overall system performance for certain UWB channels.
引用
收藏
页码:2143 / 2146
页数:4
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