Statistical Modeling and Analysis of Power Amplifier Nonlinearities in Communication Systems
Artikel i vetenskaplig tidskrift, 2022
Hardware impairments in general and amplifier nonlinearity in particular severely limit the performance of communication links. This paper analytically provides statistical results on how a nonlinear amplifier affects the quality of signals in communication systems. In particular, we propose a statistical model that describes the nonlinear distortion as a function of the input signal’s average and instantaneous power and captures the pulse-shaping and matched filters’ effects. We show through simulations and complementary measurements that the proposed model can provide an authentic connection between the communication system parameters, power amplifier nonlinearity characteristics, and the communication system performance. It serves not only as a reliable model for nonlinear distortion analysis but also as a design tool that allows optimization of signal and filter characteristics with respect to nonlinear distortion.
matched filtering
Power amplifier nonlinearity
RF Weblab
Power amplifiers
statistical modeling
Communication systems
Distortion
Nonlinear distortion
optimum transceiver design
Hardware
Matched filters
pulse shaping
Analytical models
distortion analysis
Författare
Mohammad Hossein Moghaddam
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
Sina Rezaei Aghdam
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
Nicolo Mazzali
Europeiska rymdorganisationen (ESA)
Thomas Eriksson
Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk
IEEE Transactions on Communications
00906778 (ISSN) 15580857 (eISSN)
Vol. 70 2 822-835Ämneskategorier (SSIF 2011)
Kommunikationssystem
DOI
10.1109/TCOMM.2021.3139630