TY - GEN
T1 - Adaptive digital pre-distortion for future wireless transmitters
AU - Dardaillon, Mickaël
AU - Jabbour, Chadi
AU - Srini, Vason P.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/3/23
Y1 - 2016/3/23
N2 - Digital pre-distortion techniques are one of the most interesting approaches to break the linearity-efficiency tradeoff of Power Amplifiers. In the recent past, these techniques were exclusively employed in the base stations due to the high computation resources needed for the coefficients estimation. Nowadays, low-complexity DPD techniques are proposed to extend their usage in mobile devices such as tablets and even smartphones. In this paper, we propose a novel low-complexity DPD estimation scheme. The approach consists in using a memoryless polynomial correction to reduce the estimation run time/complexity and to perform a fast reevaluation for each LO frequency in order to mitigate the memory effects. The proposed technique was implemented and validated on PAs off-the-shelf using the AD-FMComms3-EBZ transceiver board and a Kalray MPPA platform. Adjacent Channel Power Ratio improvements of 14 dB were obtained for output powers of 22 dBm.
AB - Digital pre-distortion techniques are one of the most interesting approaches to break the linearity-efficiency tradeoff of Power Amplifiers. In the recent past, these techniques were exclusively employed in the base stations due to the high computation resources needed for the coefficients estimation. Nowadays, low-complexity DPD techniques are proposed to extend their usage in mobile devices such as tablets and even smartphones. In this paper, we propose a novel low-complexity DPD estimation scheme. The approach consists in using a memoryless polynomial correction to reduce the estimation run time/complexity and to perform a fast reevaluation for each LO frequency in order to mitigate the memory effects. The proposed technique was implemented and validated on PAs off-the-shelf using the AD-FMComms3-EBZ transceiver board and a Kalray MPPA platform. Adjacent Channel Power Ratio improvements of 14 dB were obtained for output powers of 22 dBm.
UR - https://www.scopus.com/pages/publications/84964878144
U2 - 10.1109/ICECS.2015.7440316
DO - 10.1109/ICECS.2015.7440316
M3 - Conference contribution
AN - SCOPUS:84964878144
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
SP - 332
EP - 335
BT - 2015 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2015
Y2 - 6 December 2015 through 9 December 2015
ER -