Coding efficiency of RF pulse-width-modulation for mobile communications

Author

Markert, Daniel ; Haslach, Christoph ; Fischer, Georg ; Pascht, Andreas

Author_Institution

Bell Labs., Alcatel-Lucent Deutschland GmbH, Stuttgart, Germany

fYear

2012

fDate

3-5 Oct. 2012

Firstpage

1

Lastpage

5

Abstract

This paper discusses RF-PWM for mobile communication applications focusing on maximal achievable coding efficiency. Coding efficiency is one of the most crucial metrics in evaluating modulation concepts for switch mode amplification. It is shown that the achievable efficiency is mostly dependent on the chosen modulator waveform and the magnitude probability density function of the wanted signal. We determine theoretical limits and unveil unexpected benefits of unipolar waveforms. The results are applied to realistic communication test signals with various system parameter sets.

Keywords

encoding; mobile communication; modulators; pulse width modulation; RF pulse-width-modulation; RF-PWM; crucial metrics; evaluating modulation concepts; magnitude probability density function; maximal achievable coding efficiency; mobile communication applications; mobile communications; modulator waveform; realistic communication test signals; switch mode amplification; unipolar waveforms; Encoding; Mobile communication; Modulation; Peak to average power ratio; Power generation; Probability density function; Switches; delta-sigma modulation; digital modulation; mobile communications; power amplifier; pulse-width modulation; transceiver;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems, and Electronics (ISSSE), 2012 International Symposium on

Conference_Location

Potsdam

ISSN

2161-0819

Print_ISBN

978-1-4673-4454-8

Electronic_ISBN

2161-0819

Type

conf

DOI

10.1109/ISSSE.2012.6374301

Filename

6374301