Title | Predistortion and Postdistortion of Wireless Power Amplifiers for 4G and B4G Wireless Systems |
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Authors | Kodogiannis, V., Vaskovic, M., Mijuskovic, J. and Budimir, D. |
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Type | Conference paper |
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Abstract | This paper presents an adaptive fuzzy logic system (AFLS) approach for the predistortion and postdistortion linearization of the highly nonlinear MIMIX CFH2162-P3 power amplifier (PA). Driving an LTE 1.4 MHz 64 QAM signal at 880 MHz as centre frequency at PA’s input, a very good modeling performance for inverse dynamics has been achieved. A PA’s inverse model based on AFLS has been developed in order to act as a predistorter, as well as a postdistorter unit. Pre-distortion and post-distortion systems based on AFLS gained distortion suppression of 93% and 73% for the device under test (DUT),respectively. |
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Keywords | Adaptive fuzzy logic system; neuro-fuzzy systems; postdistortion; predistortion; wireless power amplifiers. |
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Year | 2015 |
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Conference | Conference: IEEE Symposium on Computers and Communications |
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Web address (URL) of conference proceedings | http://ieeexplore.ieee.org/servlet/opac?punumber=1000156 |
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