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

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

Alexander Hilario Tacuri
Copyright: © 2018 |Volume: 10 |Issue: 2 |Pages: 15
ISSN: 1941-8663|EISSN: 1941-8671|EISBN13: 9781522543954|DOI: 10.4018/IJITN.2018040103
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MLA

Tacuri, Alexander Hilario. "On the Time-Varying Non-Linearity Effects Over the Spectrum of MIMO-OFDM Wireless Communications Systems." IJITN vol.10, no.2 2018: pp.25-39. http://doi.org/10.4018/IJITN.2018040103

APA

Tacuri, A. H. (2018). On the Time-Varying Non-Linearity Effects Over the Spectrum of MIMO-OFDM Wireless Communications Systems. International Journal of Interdisciplinary Telecommunications and Networking (IJITN), 10(2), 25-39. http://doi.org/10.4018/IJITN.2018040103

Chicago

Tacuri, Alexander Hilario. "On the Time-Varying Non-Linearity Effects Over the Spectrum of MIMO-OFDM Wireless Communications Systems," International Journal of Interdisciplinary Telecommunications and Networking (IJITN) 10, no.2: 25-39. http://doi.org/10.4018/IJITN.2018040103

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Abstract

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.

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