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Please use this identifier to cite or link to this item: http://hdl.handle.net/UCSP/15790
Title: MIMO Subband Volterra Digital Predistortion for Concurrent Aggregated Carrier Communications
Authors: Zenteno Bolaños, Efrain
Ronnow, Daniel
Keywords: Doherty amplifiers;Error compensation;Transmitters;Compensation techniques;Digital predistortion;Error vector magnitude;Low computational complexity;Multi-rate processing;Nonlinear basis functions;Nonlinear mitigations;Transmitter architecture;MIMO systems
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers Inc.
metadata.dc.relation.uri: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009892701&doi=10.1109%2fTMTT.2016.2630066&partnerID=40&md5=d5e5e6ee7cc35a0511465e596eb296cb
Abstract: This paper presents a multiple-input multiple-output (MIMO) nonlinear mitigation technique for closely spaced concurrent aggregated carrier systems. The transmitter architecture considers band-limited sources, where the predistorter and signal bandwidth are the same, thus reducing transmitter hardware cost and power consumption. The technique relies on multirate processing and linear filtering and uses the carrier frequencies to isolate the contribution of linear and nonlinear basis functions to the desired bands. This approach can be used with any MIMO model structure. In particular, models are linear in the parameters of low computational complexity. The technique was evaluated using three concurrent carriers of 50 MHz each fed to a Doherty amplifier. The results show significant reduction in the error vector magnitude and improvements for the transmitter efficiency using the proposed compensation technique. © 1963-2012 IEEE.
URI: http://repositorio.ucsp.edu.pe/handle/UCSP/15790
ISSN: 189480
Appears in Collections:Artículos de investigación

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