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International Conference on Mobile Lightweight Wireless Systems

Mobilight 2010: Mobile Lightweight Wireless Systems pp 388–399Cite as

Measuring the Closed-Loop Throughput of 2x2 HSDPA over TX Power and TX Antenna Spacing

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Abstract

Mobile network operators demand small base station antennas and high physical layer throughputs. In the downlink, high physical layer throughputs can be achieved by exploiting transmit diversity. Given that the correlation between different propagation paths reduces the achievable throughput, it is commonly conjectured that the greater the transmit antenna spacing, the better the radio link performance. The open question is, how much does the throughput of a communication system actually change over antenna spacing?

We answer this question by closed-loop throughput measurements at 2.5 GHz for standard compliant 2× 2 HSDPA in a realistic, urban, outdoor scenario. The results are presented in terms of physical layer throughput over TX antenna spacing and TX power. We arrive at the somehow surprising conclusion that, for typical TX power values and typical antenna spacings, the throughput remains approximately independent with respect to the antenna spacing.

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Author information

Authors and Affiliations

  1. Institute of Communications and Radio-Frequency Engineering, Vienna University of Technology, Vienna, Austria

    Sebastian Caban, Christian Mehlführer & Markus Rupp

  2. Department of Electronics and Systems, University of A Coruña, A Coruña, Spain

    José A. García-Naya & Luis Castedo

Authors
  1. Sebastian Caban
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  2. José A. García-Naya
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  3. Christian Mehlführer
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  4. Luis Castedo
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  5. Markus Rupp
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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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Caban, S., García-Naya, J.A., Mehlführer, C., Castedo, L., Rupp, M. (2010). Measuring the Closed-Loop Throughput of 2x2 HSDPA over TX Power and TX Antenna Spacing. 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_34

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  • DOI: https://doi.org/10.1007/978-3-642-16644-0_34

  • 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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