Cellular Digital Post-Distortion: Signal Processing Methods and RF Measurements

Tutkimustuotos: KonferenssiartikkeliScientificvertaisarvioitu

3 Sitaatiot (Scopus)
16 Lataukset (Pure)

Abstrakti

In this paper, we study the feasibility of digital post-distortion (DPoD) based mitigation of transmitter nonlinear distortion in cellular networks. With specific emphasis on downlink, we describe a computationally efficient one-shot method to estimate and mitigate the cascaded multipath channel and transmitter nonlinear distortion effects at terminal receiver, building on demodulation reference symbols (DMRSs). We also describe a DMRS boosting approach to match the envelope characteristics of the DMRS and the actual data-bearing multicarrier symbols such that accurate mitigation is feasible. We provide RF measurement results with a state-of-the-art 28 GHz active antenna array and 256-QAM data modulation, demonstrating larger performance enhancements in received signal error vector magnitude (EVM) compared to existing computationally expensive iterative methods.

AlkuperäiskieliEnglanti
Otsikko2023 IEEE Wireless and Microwave Technology Conference, WAMICON 2023
KustantajaIEEE
Sivut25-28
Sivumäärä4
ISBN (elektroninen)9798350398649
ISBN (painettu)9798350398656
DOI - pysyväislinkit
TilaJulkaistu - 2023
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE Wireless and Microwave Technology Conference - Melbourne, Yhdysvallat
Kesto: 17 huhtik. 202318 huhtik. 2023

Conference

ConferenceIEEE Wireless and Microwave Technology Conference
Maa/AlueYhdysvallat
KaupunkiMelbourne
Ajanjakso17/04/2318/04/23

Julkaisufoorumi-taso

  • Jufo-taso 0

!!ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

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