Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals

Souheil Ben Smida; Konstantinos Mimis; Kevin A. Morris; Mark A. Beach; Joe P. McGeehan; Jonathan Lees; Johannes Benedikt; Paul J. Tasker

doi:10.1109/MWSYM.2012.6259543

Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals

Souheil Ben Smida, Konstantinos Mimis, Kevin A. Morris, Mark A. Beach, Joe P. McGeehan, Jonathan Lees, Johannes Benedikt, Paul J. Tasker

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Citations (Scopus)

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.

Original language	English
Title of host publication	2012 IEEE/MTT-S International Microwave Symposium Digest
Publisher	IEEE
ISBN (Electronic)	978-1-4673-1088-8
ISBN (Print)	978-1-4673-1085-7
DOIs	https://doi.org/10.1109/MWSYM.2012.6259543
Publication status	Published - 6 Aug 2012

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10.1109/MWSYM.2012.6259543

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title = "Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals",

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.",

author = "{Ben Smida}, Souheil and Konstantinos Mimis and Morris, {Kevin A.} and Beach, {Mark A.} and McGeehan, {Joe P.} and Jonathan Lees and Johannes Benedikt and Tasker, {Paul J.}",

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doi = "10.1109/MWSYM.2012.6259543",

language = "English",

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T1 - Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals

AU - Ben Smida, Souheil

AU - Mimis, Konstantinos

AU - Morris, Kevin A.

AU - Beach, Mark A.

AU - McGeehan, Joe P.

AU - Lees, Jonathan

AU - Benedikt, Johannes

AU - Tasker, Paul J.

PY - 2012/8/6

Y1 - 2012/8/6

N2 - 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.

AB - 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.

U2 - 10.1109/MWSYM.2012.6259543

DO - 10.1109/MWSYM.2012.6259543

M3 - Conference contribution

SN - 978-1-4673-1085-7

BT - 2012 IEEE/MTT-S International Microwave Symposium Digest

PB - IEEE

ER -

Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals

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