Performance Analysis of Frequency Domain Precoding Time-Reversal MISO OFDM Systems

被引：4
作者：
Nguyen, Trung-Hien [1 ]
Monfared, Shaghayegh [1 ]
Determe, Jean-Francois [1 ]
Louveaux, Jerome [2 ]
De Doncker, Philippe [1 ]
Horlin, Francois [1 ]
机构：
[1] ULB, OPERA Dept, B-1050 Brussels, Belgium
[2] UCL, ICTEAM Inst, B-1348 Louvain La Neuve, Belgium
来源：
IEEE COMMUNICATIONS LETTERS | 2020年 / 24卷 / 01期
关键词：
Time reversal; rate back-off factor; OFDM;
D O I：
10.1109/LCOMM.2019.2949556
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Time reversal (TR) recently emerged as an interesting communication technology capable of providing a good spatio-temporal signal focusing effect. New generations of large-bandwidth devices with reduced cost leverage the use of TR wideband communication systems. TR can easily be integrated into an orthogonal frequency-division multiplexing (OFDM) system by precoding the signal in the frequency domain. In this letter, we first extend the frequency-domain TR precoding to rate back-off factors (BOFs) different than one. We secondly derive a closed-form mean-square-error (MSE) expression of the received equalized symbols as a function of the BOFs and the number of antennas. The derived MSE formula is validated numerically with Rayleigh fading channels.
引用
收藏
页码：48 / 51
页数：4
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