Abstract
Coded Orthogonal Frequency Division Multiplexed (COFDM) techniques, used by terrestrial European broadcasting systems (DAB, DVB-T), could be adopted in the last mile of the downlink channel for Wireless Broadband Communication System to provide Multimedia Services to mobile or nomadic users by cellular coverage techniques, as evinced from the actual research activity. COFDM signals are characterised by non-constant envelope (peak-to-mean power ratio > 10 dB) which forces to project amplifiers with low or well-counteracted non-linear distortion effects. Our aim is to present Itelco experience to characterise non-linear distortions introduced by final amplifiers on COFDM signals (AM/AM, AM/PM and NonLinearities with Memory). Both experimental measurements and simulation results will be shown. Moreover we will point out the improvements achievable by digital baseband predistortion, to counteract for AM/AM and AM/PM non-linearities, and by RF compensation techniques to remove Non Linear Memory effects.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
W Honcharenko et al., “Broadband Wireless Access”, IEEE Communications Magazine, Vol. 35, No 1, Jenuary 1997 pp. 20–26
CRL, FUB et al., CABSINET ACTS Project, D21.1 State of the Art Report, Limited Deliverable
DVB, “Framing Structure, Channel Coding and Modulation for Digital Terrestrial Television”, DVB Document A012, June 1996.
ETS 300 401, “Radio Broadcasting Systems; Digital Audio Broadcasting ( DAB) to mobile portable and fixed receivers”, February 1995, pp 180.
A.R. Kaye, D.A. George, M.J. Eric, “Analysis and Compensation of Bandpass Nonlinearities for Communications”, IEEE Trans, on Comm., VOL. COM-20, October 1972, pp. 965–972.
M. Schetzen, “The Volterra and Wiener theories of nonlinear systems”, New York, Wiley & Sons 1980
E. Biglieri, S. Barberis, M. Catena, “Analysis and compensation of nonlinearities in digital transmission systems”, IEEE JSAC, Vol. SAC-8, n.l, Jan 1988, pp. 42–51.
A. Sarti, S. Pupolin, “Recursive Techniques for the Synthesis of a pth-order inverse of a Volterra System”, ETT Vol. 3 n.4, Jul/Aug. 1992, pp. 315–322.
A.A.M.Saleh and J.Salz, “Adaptive Linearisation of Power Amplifiers in Digital Radio Systems”, The Bell Syst. Tech. Journal, Vol. 62, No. 4, April 1983, pp. 1019–1033.
J.K.Cavers, “Amplifiers Linearization Using a Digital Preedistorter with Fast Adaptation and Low Memory Requirements”, IEEE Trans, on Veh. Tech., Vol. VT-39, No. 4, November 1990, pp. 374–382.
G.Karam and H.Sari, “Generalised Data Predistortion Using Intersymbol Interpolation”, Philips Res. Journal, Vol. 46, 1991, pp. 1–22.
M. Faulkner, M. Yohansson, “Adaptive Linearization Using Predistortion - Experimental Results”, IEEE Trans, on Veh. Tech., Vol. VT-43 n. 2, May. 1994, pp. 323–332.
S.Andreoli, P.Banelli, S.Cacopardi, H.G. McClure, “Digital Linearizer for RF Amplifiers”, IEEE Trans, on Broad., Vol. 43, No 1 March 1997, pp 12–19.
J. Rinne, and M. Renfors, “The Behaviour of Orthogonal Frequency Division Multiplexing Signals in Amplitude Limiting Channel”, IEEE International Conference on Communications (ICC ’94), New Orleans, USA, pp. 381–385.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer-Verlag London Limited
About this paper
Cite this paper
Andreoli, S., Banelli, P., Longaroni, A., Massini, C. (1998). Non Linear Distortions introduced by Amplifiers on COFDM signals. Measurements, Effects and Compensation Techniques. In: Luise, M., Pupolin, S. (eds) Broadband Wireless Communications. Springer, London. https://doi.org/10.1007/978-1-4471-1570-0_12
Download citation
DOI: https://doi.org/10.1007/978-1-4471-1570-0_12
Publisher Name: Springer, London
Print ISBN: 978-3-540-76237-9
Online ISBN: 978-1-4471-1570-0
eBook Packages: Springer Book Archive