A geometry-based stochastic MIMO model for vehicle-to-vehicle communications

Vehicle-to-vehicle (VTV) wireless communications have many envisioned applications in traffic safety and congestion avoidance, but the development of suitable communications systems and standards requires accurate models for the VTV propagation channel. In this paper, we present a new wideband multi...

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Vydáno v:	IEEE transactions on wireless communications Ročník 8; číslo 7; s. 3646 - 3657
Hlavní autoři:	Karedal, J., Tufvesson, F., Czink, N., Paier, A., Dumard, C., Zemen, T., Mecklenbrauker, C.F., Molisch, A.F.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.07.2009 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Algorithms Applied sciences Channel measurements Channels Communication standards Communication system traffic Communication systems Detection, estimation, filtering, equalization, prediction Diffraction, scattering, reflection Doppler Electrical Engineering, Electronic Engineering, Information Engineering Elektroteknik och elektronik Engineering and Technology Exact sciences and technology geometrical model Highways Information, signal and communications theory MIMO nonstationary Parametrization Radiocommunications Radiowave propagation Signal and communications theory Signal, noise Solid modeling Standards development statistical model Stochastic processes Stochasticity Systems, networks and services of telecommunications Teknik Telecommunications Telecommunications and information theory Teletraffic Traffic control Transmission and modulation (techniques and equipments) Vehicle safety vehicular Wideband Wireless communication Wireless communications Sweden Europe Stochastic model Parameter estimation High resolution Wireless telecommunication statistical model Wide band Channel estimation Traffic control Rural area Delay time MIMO Deterministic approach Delayed time Electromagnetic wave scattering MIMO system Target tracking geometrical model Transmission channel Teletraffic Non stationary condition Algorithm non-stationary Electromagnetic wave propagation Traffic management Telecommunication system Traffic safety Channel measurements vehicular Delay line Traffic congestion Doppler
ISSN:	1536-1276, 1558-2248
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Shrnutí:	Vehicle-to-vehicle (VTV) wireless communications have many envisioned applications in traffic safety and congestion avoidance, but the development of suitable communications systems and standards requires accurate models for the VTV propagation channel. In this paper, we present a new wideband multiple-input-multiple-output (MIMO) model for VTV channels based on extensive MIMO channel measurements performed at 5.2 GHz in highway and rural environments in Lund, Sweden. The measured channel characteristics, in particular the nonstationarity 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 techniques for parameterizing it from measurements 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) distance decay and a slowly varying stochastic process. The paper gives a full parameterization of the channel model and supplies an implementation recipe for simulations. The model is verified by comparison of MIMO antenna correlations derived from the channel model to those obtained directly from the measurements.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23
ISSN:	1536-1276 1558-2248
DOI:	10.1109/TWC.2009.080753