Universal-Filtered Multi-Carrier Technique for Wireless Systems Beyond LTE

被引:0
|
作者
Vakilian, Vida [1 ]
Wild, Thorsten [2 ]
Schaich, Frank [2 ]
ten Brink, Stephan [2 ]
Frigon, Jean-Francois [1 ]
机构
[1] Ecole Polytech, Dept Elect Engn, Montreal, PQ H3T 1J4, Canada
[2] Alcatel Lucent Bell Labs, D-70435 Stuttgart, Germany
关键词
Coordinated multipoint (CoMP); orthogonal frequency division multiplexing (OFDM); carrier frequency offset (CFO); intercarrier interference (ICI); filter bank multicarrier (FBMC); DESIGN;
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
In this paper, we propose a multi-carrier transmission scheme to overcome the problem of intercarrier interference (ICI) in orthogonal frequency division multiplexing (OFDM) systems. In the proposed scheme, called universal-filtered multi-carrier (UFMC), a filtering operation is applied to a group of consecutive subcarriers (e.g. a given allocation of a single user) in order to reduce out-of-band sidelobe levels and subsequently minimize the potential ICI between adjacent users in case of asynchronous transmissions. We consider a coordinated multi-point (CoMP) reception technique, where a number of base stations (BSs) send the received signals from user equipments (UEs) to a CoMP central unit (CCU) for joint detection and processing. We examine the impact of carrier frequency offset (CFO) on the performance of the proposed scheme and compare the results with the performance of cyclic prefix based orthogonal frequency division multiplexing (CP-OFDM) systems. We use computer experiments to illustrate the efficiency of the proposed multi-carrier scheme. The results indicate that the UFMC scheme outperforms the OFDM for both perfect and non-perfect frequency synchronization between the UEs and BSs.
引用
收藏
页码:223 / 228
页数:6
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