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On the Maximum Efficiency of Power Amplifiers in OFDM Broadcast Systems with Envelope Following

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Mobile Lightweight Wireless Systems (Mobilight 2010)

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Abstract

We suggest a method for determining the efficiency of the power amplifier of an OFDM broadcast system. We present how far the efficiency of conventional power amplifiers can be increased by applying envelope following. The dependency of the efficiency on the probability of clipping is derived. In this context all three possibilities of operating point adjustment are investigated. Finally, we show that by adjusting only the operating point voltage of the power amplifier the efficiency of OFDM broadcast systems can be doubled.

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Author information

Authors and Affiliations

  1. Chair for Circuit Design and Network Theory, Technische Universität Dresden, Germany

    Robert Wolf, Frank Ellinger & Ralf Eickhoff

Authors
  1. Robert Wolf
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  2. Frank Ellinger
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  3. Ralf Eickhoff
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Editor information

Editors and Affiliations

  1. Department of Informatics, Technological Educational Institution of Thessaloniki, 57400, Sindos, Thessaloniki, Greece

    Periklis Chatzimisios

  2. Centre Tecnològic de Telecomunications de Catalunya, Parc Mediterrani de la Tecnologia, 08860, Castellfels, Barcelona, Spain

    Christos Verikoukis

  3. Dpto. Ingeniería de Comunicaciones, Universidad de Cantabria, 39005, Santander, Spain

    Ignacio Santamaría

  4. Texas A&M University, 75505-5518, Texarkana, TX, USA

    Massimiliano Laddomada

  5. TU Dortmund, Lehrstuhl für Kommunikationstechnik, Otto-Hahn-Str, 44221, Dortmund, Germany

    Oliver Hoffmann

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© 2010 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering

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Wolf, R., Ellinger, F., Eickhoff, R. (2010). On the Maximum Efficiency of Power Amplifiers in OFDM Broadcast Systems with Envelope Following. In: Chatzimisios, P., Verikoukis, C., Santamaría, I., Laddomada, M., Hoffmann, O. (eds) Mobile Lightweight Wireless Systems. Mobilight 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 45. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16644-0_15

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  • DOI: https://doi.org/10.1007/978-3-642-16644-0_15

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-16643-3

  • Online ISBN: 978-3-642-16644-0

  • eBook Packages: Computer ScienceComputer Science (R0)

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