Nuckelt, J.; Abbas, T.; Tufvesson, F.; Mecklenbräuker, C.; Bernadó, L.; Kürner, T.
IEEE Vehicular Technology Conference (VTC-Spring), Dresden, Germany, 2-6 June 2013
This paper presents the results of an accuracy study of a deterministic channel model for vehicle-to-vehicle (V2V) communications. Channel simulations obtained from the ray-tracing model developed by TU Braunschweig are compared to data gathered during the DRIVEWAY V2V channel measurement campaign at 5.6 GHz in the city of Lund in summer 2009. The analysis focuses on PDP and channel gains in an urban four-way intersection scenario.
Despite of some implementation-based limitations of the ray-tracing model, a very good agreement between simulation and measurement results is achieved. Most relevant power contributions arising from multiple-bounce specular reflections as well as single-bounce non-specular reflections are captured by the deterministic model. We also discuss the question to what extent roadside obstacles like traffic signs, parked cars or lamp posts have to be considered when characterizing the V2V channel.
Rose, D. M.; Jansen, T.; Hahn, S.; Kürner, T.
7th European Conference on Antennas and Propagation (EuCAP 2013), Gothenburg, Sweden, 8-12 April 2013
Algorithms that depend on the simulation of individ-ual users (e.g. SON handover optimisation) need a microscopic user mobility that fits to the chosen prediction model. Any im-provement in the accuracy of pathloss predictions (e.g. from Extended Hata to ray-optical predictions with outdoor-to-indoor mapping), either in terms of spatial resolution or in terms of the underlying propagation model, needs an improvement in the mobility model as well (Random Walk to Indoor Mobility). Therefore, a new sophisticated three dimensional indoor mobility model based on real building data is proposed in this paper. Furthermore, investigations on the degree of modelling and its impact on user and network simulations are shown. Also available as: TD(13)06011, 6th IC 1004 Management Committee Meeting, February 6-8 2013, Malaga, Spain
Nuckelt, J.; Rose, D. M.; Jansen, T.; Kürner, T.
7th European Conference on Antennas and Propagation (EuCAP 2013), Gothenburg, Sweden, 8-12 April 2013
There is a need to characterize the radio channel for vehicular communication systems including the derivation of adequate channel models for specific traffic situations. Deterministic channel modeling approaches like ray tracing may become of greater interest since they take the individual characteristics of the environment into account and help to reveal the most relevant radio propagation phenomena. However, a detailed and accurate database of objects like buildings influencing radio propagation is required. The aim of this paper is to encourage the propagation research community to consider public-domain OpenStreetMap (OSM) data for the purpose of deterministic channel modeling focusing on urban vehicular environments. We present a guideline how to make use of OSM data and answer the question whether the building data can provide a satisfying accuracy required for adequate channel modeling.
Priebe, S.; Rey, S.; Kürner, T.
Radio and Wireless Symposium 2013, Austin, USA
Nuckelt, J.; Abbas, T.; Tufvesson, F.; Mecklenbräuker, C.; Bernadó, L.; Kürner, T.
COST IC1004, 5th Scientific Meeting, Bristol, UK, 24-26 September 2012
This paper presents the results of an accuracy study of a deterministic channel model for vehicle-to-vehicle (V2V) communications. Channel simulations obtained from the ray-tracing model developed by TU Braunschweig are compared to data gathered during the DRIVEWAY V2V channel measurement campaign at 5.6 GHz in the city of Lund in summer 2009. The analysis focuses on PDP and channel gains in an urban four-way intersection scenario.
Despite of some implementation-based limitations of the ray-tracing model, a very good agreement between simulation and measurement results is achieved. Most relevant power contributions arising from multiple-bounce specular reflections as well as single-bounce non-specular reflections are captured by the deterministic model. We also discuss the question to what extent roadside obstacles like traffic signs, parked cars or lamp posts have to be considered when characterizing the V2V channel.
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