Mimis, K., Morris, K. A., Beach, M. A., McGeehan, J. P., Lees, Jonathan  ORCID: https://orcid.org/0000-0002-6217-7552, Benedikt, Johannes ORCID: https://orcid.org/0000-0002-9583-2349 and Tasker, Paul J. ORCID: https://orcid.org/0000-0002-6760-7830
2012.
Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals.
Presented at: 2012 IEEE MTT-S International Microwave Symposium Digest,
Montreal, Canada,
17-22 June 2012.
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International.
pp. 1-3.
10.1109/MWSYM.2012.6259543
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Abstract
A modified piece-wise polynomial pre-distortion is proposed, investigated and compared against classic memoryless polynomial pre-distortion. The proposed enhanced piece-wise polynomial pre-distortion uses the overlap between segments to ensure continuity in the total pre-distortion function. The implementation of overlap allows the use of a simple error estimation algorithm to minimise hand over error. The classic and proposed piece-wise pre-distortion performances are assessed and compared for several sets of polynomial coefficients. The proposed method is shown to consistently outperform classical polynomial pre-distortion in terms of required coefficients and linearity improvement. The method is applied for the linearisation of an envelope tracking Class-J PA at 1.7GHz, under a 1.4MHz LTE signal with a 14.4dB PAPR.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Engineering |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| ISBN: | 9781467310857 |
| ISSN: | 0149-645X |
| Last Modified: | 24 Oct 2022 10:25 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/44200 |
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