A geometry-based stochastic MIMO model for vehicle-to-vehicle communications
Top Cited Papers
- 21 July 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Wireless Communications
- Vol. 8 (7), 3646-3657
- https://doi.org/10.1109/twc.2009.080753
Abstract
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.Keywords
This publication has 21 references indexed in Scilit:
- Non-WSSUS vehicular channel characterization in highway and urban scenarios at 5.2GHz using the local scattering functionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- Six Time- and Frequency-Selective Empirical Channel Models for Vehicular Wireless LANs2007 IEEE 66th Vehicular Technology Conference, 2007
- A BER-Based Partitioned Model for a 2.4GHz Vehicle-to-Vehicle Expressway ChannelWireless Personal Communications, 2006
- Evaluation of an ultra-wide-band propagation channelIEEE Transactions on Antennas and Propagation, 2002
- Statistical characterization of urban spatial radio channelsIEEE Journal on Selected Areas in Communications, 2002
- Unified channel model for mobile radio systems with smart antennasIEE Proceedings - Radar, Sonar and Navigation, 1998
- On Limits of Wireless Communications in a Fading Environment when Using Multiple AntennasWireless Personal Communications, 1998
- Correlation model for shadow fading in mobile radio systemsElectronics Letters, 1991
- On the Capacity of Radio Communication Systems with Diversity in a Rayleigh Fading EnvironmentIEEE Journal on Selected Areas in Communications, 1987
- Characterization of Randomly Time-Variant Linear ChannelsIEEE Transactions on Communications, 1963