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Measurement-based modeling of vehicle-to-vehicle MIMO channels

Författare:
Publiceringsår: 2009
Språk: Engelska
Sidor: 3470-3475
Publikation/Tidskrift/Serie: IEEE International Conference on Communications
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.

Sammanfattning

Vehicle-to-vehicle (VTV) communications are of interest for applications within traffic safety and congestion avoidance, but the development of suitable communications systems requires accurate models for the VTV propagation channel. This paper presents a new wideband MIMO (multipleinput-

multiple-output) channel model for VTV channels based on extensive MIMO channel measurements performed at 5.2 GHz in rural environments in Lund, Sweden. The measured channel characteristics, in particular the non-stationarity of the channel statistics, motivate the use of a geometry-based stochastic channel model (GSCM) instead of the classical tapped-delay line model. We introduce generalizations of the generic GSCM approach and find it suitable to distinguish between diffuse and discrete

scattering contributions. The time-variant contribution from discrete scatterers is tracked over time and delay using a high resolution algorithm, and our observations motivate their power being modeled as a combination of a deterministic part and a stochastic part. The paper gives a full model parameterization and the model is verified by comparison of MIMO antenna correlations derived from the channel model to those obtained

directly from the measurements.

Nyckelord

  • Electrical Engineering, Electronic Engineering, Information Engineering

Övriga

IEEE International Conference on Communications, 2009
Published
  • Radio Systems-lup-obsolete

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