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Varahram, Pooria, Dooley, John, Finnerty, Keith and Farrell, Ronan (2016) Digital Pre-Distortion Based on Nonlinear Autoregressive With Exogenous Inputs. IEEE Microwave and Wireless Components Letters, 26 (5). pp. 364-366. ISSN 1558-1764
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Abstract
In this letter, a new pre-distortion technique for power amplifiers in wideband applications is proposed. The proposed pre-distortion technique is based on Nonlinear Autoregressive with Exogenous inputs (NARX). The forward path of the proposed predictive method is based on the memory polynomial. Experimental validation is carried out with 4 carrier WCDMA signal with 20MHz bandwidth and PAPR = 9.8 dB. The results show significant reduction in the number of coefficients with comparable performance in terms of adjacent channel leakage ratio (ACLR) and error vector magnitude (EVM) to Volterra series techniques.
| Item Type: | Article |
|---|---|
| Keywords: | Memory effects; memory polynomial; NARX; power amplifier (PA); Volterra series |
| Academic Unit: | Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute |
| Item ID: | 10282 |
| Identification Number: | 10.1109/LMWC.2016.2549178 |
| Depositing User: | Ronan Farrell |
| Date Deposited: | 05 Dec 2018 15:11 |
| Journal or Publication Title: | IEEE Microwave and Wireless Components Letters |
| Publisher: | IEEE |
| Refereed: | Yes |
| Related URLs: | |
| URI: | https://mu.eprints-hosting.org/id/eprint/10282 |
| Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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