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Träfflista för sökning "WFRF:(Tufvesson Fredrik) ;pers:(Richter Andreas)"

Sökning: WFRF:(Tufvesson Fredrik) > Richter Andreas

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  • Koivunen, Jukka, et al. (författare)
  • Dynamic multi-link indoor MIMO measurements at 5.3 GHz.
  • 2007
  • Ingår i: Proc 2nd European Conference on Antennas and Propagation (EuCAP 2007).
  • Konferensbidrag (refereegranskat)abstract
    • A dynamic multi-link MIMO channel indoor measurement campaign at 5.3 GHz is presented in this paper. The system setup is described and capacity with interference (with and without power control) results based on the dynamic multilink MIMO measurements are shown, and we experience a strong correlation between the relative capacity and SIR. Furthermore, an interference suppression metric is introduced and pathloss exponents and delay spreads are also presented, when moving from a typical office corridor to a large entrance hall at the premises of Lund University, Sweden.
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  • Kolmonen, Veli-Matti, et al. (författare)
  • A dynamic dual-link wideband MIMO channel sounder for 5.3 GHz
  • 2010
  • Ingår i: IEEE Transactions on Instrumentation and Measurement. - 0018-9456. ; 59:4, s. 873-883
  • Tidskriftsartikel (refereegranskat)abstract
    • Abstract in UndeterminedIn this paper, we present and evaluate the performance of a dynamic dual-link wideband multiple-input-multiple-output ( MIMO) channel sounder. The channel sounder can simultaneously measure two wideband dual-polarized links, each with a MIMO matrix size of 30 x 30 and 30 x 32. Multi-link MIMO systems, including multiuser and cooperative MIMO, are essential parts of future high-throughput wireless local area networks and fourth-generation cellular systems. To fully understand such systems, the dynamic characteristics of multilink MIMO channels have to be measured. In this paper, we present a channel sounder that enables such measurements, including double-directional parameter estimation possibility for both links. The presented dual-link MIMO channel sounder does not suffer from the deficiencies of previous "virtual multiuser" measurement systems. Furthermore, system analysis and sample results from a measurement campaign with this channel sounder at 5.3 GHz in an indoor office environment are presented.
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  • Resultat 1-4 av 4

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