On the Time-Varying Non-Linearity Effects Over the Spectrum of MIMO-OFDM Wireless Communications Systems

被引：0
|
作者：
Hilario Tacuri, Alexander [1 ]
机构：
[1] Univ Nacl San Agustin, Arequipa, Peru
来源：
INTERNATIONAL JOURNAL OF INTERDISCIPLINARY TELECOMMUNICATIONS AND NETWORKING | 2018年 / 10卷 / 02期
关键词：
MIMO-OFDM; Multi-Path Channels; Non-Linearity; Spectrum Regrowth; Wireless Systems;
D O I：
10.4018/IJITN.2018040103
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This article presents analytical expressions that can be used in the evaluation of the effects of a non-linear mobile (multi-path) channel on the spectrum of MIMO-OFDM communications systems, such as 4G systems (LTE, WiMax) and probably the future 5G systems. The channel is modeled by a time-varying Volterra Series and the MIMO-OFDM signal by a complex, proper, wide-sense stationary Gaussian random process with zero mean. The resulting mathematical expressions are applied to a specific situation, allowing a quantitative evaluation of the out-band spectrum regrowth of MIMO-OFDM wireless communications systems produced by the use of non-linear devices in mobile channels.
引用
收藏
页码：25 / 39
页数：15
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