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Title:
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SHAPER: demostrador experimental de técnicas de linealización digital de amplificadores de potencia para acceso y backhaul inalámbrico 4G/5G
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Author:
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López Bueno, David; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bartzoudis, Nikolaos; Font Bach, Oriol
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CSC - Components and Systems for Communications Research Group |
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Abstract:
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The waveforms being employed by fourthgeneration
(4G) and candidate fifth-generation (5G) radio
access and wireless backhaul technologies are based on
modulation techniques that allow significantly increased
spectral efficiency and capacity, and enable new spectrum
sharing scenarios. However, the use of high peak-to-average
power ratio (PAPRs) modulations requires inefficient operation
of the power amplifier (PA) to fulfill stringent spectral mask
and modulation accuracy requirements. With digital
linearization techniques such as crest factor reduction (CFR)
and digital predistortion (DPD), the classical linearity versus
power efficiency tradeoff can be mitigated and the network
capital and operational expenditures (CAPEX and OPEX) may
be reduced. This article describes the architecture and
linearization strategies employed by SHAPER (Solutions for
wideband Highly lineAr and efficient PowER amplification), a
demonstration platform for fast prototyping and experimental
validation of CFR and DPD techniques for multiple waveform
types and application environments. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
-Àrees temàtiques de la UPC::Enginyeria electrònica
-Power amplifiers
-Waves
-Amplificadors de potència
-Ones |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Universidad Autónoma de Madrid
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