Case Study of Spatial Channel Model for Vehicleto-Vehicle Communication in Roadside Scattering Environment

2018 ◽  
Author(s):  
Hanene Zormati ◽  
Jalel Chebil ◽  
Jamel Bel Hadj Tahar
Keyword(s):  
Channel Model ◽  
Vehicle Communication ◽  
Spatial Channel Model

scholarly journals Simulation and Analysis of Extended Spatial Channel Model in Vehicle-to-Vehicle Communication Environments

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Xin Chen ◽  
Yaolin Zhu ◽  
Yong Fang
Keyword(s):  
Channel Model ◽  
Reference Model ◽  
Statistical Properties ◽  
Death Process ◽  
Closed Form Expression ◽  
Vehicle Communication ◽  
Vehicle To Vehicle ◽  
Communication Environments ◽  
Spatial Channel Model ◽  
V2v Communications

In this paper, an extension spatial channel model (SCM) for vehicle-to-vehicle (V2V) communications is proposed. To efficiently illustrate the real-world scenarios and reflect nonstationary properties of V2V channels, all effective scattering objects are subdivided into three categories of clusters according to the relative position of clusters. Besides, a birth-death process is introduced to model the appearance and disappearance of clusters on both the array and time axes. Their impacts on V2V channels are investigated via statistical properties including correlation functions. Additionally, a closed-form expression of channel impulse response (CIR) is derived from an extension SCM and cluster-based models. Furthermore, the spatial and frequency statistical properties of the reference model are thoroughly investigated. Finally, simulation results show that the proposed SCM V2V model is in close agreement with previously reported results, thereby validating the accuracy and effectiveness of the proposed model.

Performance Analysis of Spatial Channel Model LTE Scheme for Urban Region

2017 ◽  
Author(s):  
Sanyog Pandiya ◽  
Shashank Mane
Keyword(s):  
Performance Analysis ◽  
Channel Model ◽  
Urban Region ◽  
Spatial Channel Model

scholarly journals Vortex–Vortex Interactions for the Maintenance of Blocking. Part II: Numerical Experiments

2013 ◽  
Vol 70 (3) ◽  
pp. 743-766 ◽  
Author(s):  
Akira Yamazaki ◽  
Hisanori Itoh
Keyword(s):  
Numerical Experiments ◽  
Channel Model ◽  
Spherical Model ◽  
Zonal Flow ◽  
Selective Absorption ◽  
Absorption Mechanism ◽  
Vortex Interactions ◽  
Maintenance Mechanism ◽  
Uniform Background

Abstract The selective absorption mechanism (SAM), newly proposed in Part I of this study on the maintenance mechanism of blocking, is verified through numerical experiments. The experiments were based on the nonlinear equivalent-barotropic potential vorticity equation, with varying conditions with respect to the shape and amplitude of blocking, and characteristics of storm tracks (displacement and strength) and background zonal flow. The experiments indicate that the SAM effectively maintains blocking, irrespective of the above conditions. At first, by applying a channel model on a β plane, numerical experiments were conducted using a uniform background westerly with and without a jet. The results show that the presence of a jet promotes the effectiveness of the SAM. Then, two types of spherical model experiments were also performed. In idealized experiments, the SAM was as effective as the β-plane model in explaining the maintenance of blocking. Moreover, experiments performed under realistic meteorological conditions showed that the SAM maintained a real block, demonstrating that the SAM is effective. These results, and the case study in Part I, verify that the SAM is the effective general maintenance mechanism for blocking.

An Extension of Spatial Channel Model with Spatial Consistency

2016 ◽  
Author(s):  
Yi Wang ◽  
Zhenyu Shi ◽  
Lei Huang ◽  
Ziming Yu ◽  
Chang Cao
Keyword(s):  
Channel Model ◽  
Spatial Consistency ◽  
Spatial Channel Model

A Geometric Polarization Rotation Model for the 3-D Spatial Channel Model

2012 ◽  
Vol 60 (12) ◽  
pp. 5966-5977 ◽  
Author(s):  
Stephan Jaeckel ◽  
Kai Borner ◽  
Lars Thiele ◽  
Volker Jungnickel
Keyword(s):  
Channel Model ◽  
Polarization Rotation ◽  
Spatial Channel Model ◽  
Rotation Model

scholarly journals Research on Spatial Channel Model for Vehicle-to-Vehicle Communication Channel in Roadside Scattering Environment

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Xin Chen ◽  
Yong Fang ◽  
Weidong Xiang ◽  
Liang Zhou
Keyword(s):  
Communication Channel ◽  
Channel Model ◽  
Critical Distance ◽  
Traffic Density ◽  
Vehicle Speed ◽  
Angle Of Arrival ◽  
Vehicle To Vehicle ◽  
Proposed Model ◽  
Spatial Channel Model ◽  
The Impact

In this paper, an extension of spatial channel model (SCM) for vehicle-to-vehicle (V2V) communication channel in roadside scattering environment is investigated for the first time theoretically and by simulations. Subsequently, to efficiently describe the roadside scattering environment and reflect the nonstationary properties of V2V channels, the proposed SCM V2V model divides the scattering objects into three categories of clusters according to the location of effective scatterers by introducing critical distance. We derive general expressions for the most important statistical properties of V2V channels, such as channel impulse response, power spectral density, angular power density, autocorrelation function, and Doppler spread of the proposed model. The impact of vehicle speed, traffic density, and angle of departure, angle of arrival, and other statistical performances on the V2V channel model is thoroughly discussed. Numerical simulation results are presented to validate the accuracy and effectiveness of the proposed model.

How General Motors progressively evolved its business model over three decades

2019 ◽  
Vol 35 (6) ◽  
pp. 15-17
Keyword(s):  
Electric Vehicles ◽  
Design Methodology ◽  
General Motors ◽  
Communication Service ◽  
Content Type ◽  
Vehicle Communication ◽  
Pertinent Information ◽  
Revenue Streams ◽  
Practical Implications

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings This case study concentrates on General Motors (GM) product and innovation trajectory over a period from 1990 spanning into a future where electric vehicles become mainstream. Reducing the number of models being manufactured and introducing service-based recurring revenue streams such as the “OnStar” in-vehicle communication service were among the crucial elements that allowed GM to survive against intensifying competition in their market. Originality/value The briefing saves busy executives, strategists, and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

An Interim Channel Model for Beyond-3G Systems Extending the 3GPP Spatial Channel Model (SCM)

2005 ◽  
Author(s):  
D.S. Baum ◽  
J. Hansen ◽  
G.d. Galdo ◽  
M. Milojevic ◽  
J. Salo ◽  
...  
Keyword(s):  
Channel Model ◽  
Beyond 3G ◽  
Spatial Channel Model ◽  
3G Systems
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