Power-Efficient Ultra-Wideband Waveform Design Considering Radio Channel Effects
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Date
2011-04
Authors
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
This paper presents a power-efficient maskconstrained ultra-wideband (UWB) waveform design with radio channel effects taken into consideration. Based on a finite impulse response (FIR) filter, we develop a convex optimization model with respect to the autocorrelation of the filter coefficients to optimize the transmitted signal power spectrum, subject to a regulatory emission mask. To improve power efficiency, effects of transmitter radio frequency (RF) components are included in the optimization of the transmitter-output waveform, and radio propagation effects are considered for obtaining the most efficient waveform at the receiver. Optimum coefficients of the FIR filter are obtained through spectral factorization of their autocorrelations. Simulation results show that the proposed method is able to maximize the transmitted UWB signal power under mask constraints set by regulatory authorities, while mitigating the power loss caused by channel attenuations.
Description
Citation
Radioengineering. 2011, vol. 20, č. 1, s. 179-183. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2011/11_01_179_183.pdf
http://www.radioeng.cz/fulltexts/2011/11_01_179_183.pdf
Document type
Peer-reviewed
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Published version
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en