A geometry based stochastic model for MIMO V2V channel simulation in cross-junction scenario

Abstract

In this paper a multiple-input multiple-output (MIMO) simulation model for vehicle-to-vehicle (V2V) communication channels in an urban cross-junction scenario is presented. The model is an extension and modification of an existing Tjunction model in the literature. Four propagation processes are considered: line-of-sight (LOS), single bounce reflections from side walls, double bounce reflections from side walls, and single bounce reflections from the corner of the building in front of the transmitter (TX) and receiver (RX). Each propagation process is linked to a cluster of scatterers, with a cluster size that varies with respect to the position of the TX and RX. The relations between angle-of-arrivals and angle-of-departures of all Multipath Components (MPCs) are derived depending on the different positions of the TX and RX. For the single bounce reflections from the corner a new method is being used where the scatterers are distributed randomly in a triangular plane, based on the assumption that corners of buildings typically have different scattering objects contributing to the reflection process. A complete expression for the time-variant transfer function is then derived by super positioning all contributions, including the LOS when this is available. The final results show that our model follows a realistic measurement based path-loss model, which subsequently makes the model a suitable candidate for analyzing MIMO V2V fading channels in cross-junction scattering environments.

Research on geometry-based stochastic model for MIMO V2V in cross-junction scenario

“…Street width is 20m. 1 1 T R δ δ λ = = and match with the reference model in [3]. Fig.3 from the other side of the simulation 2D spatial CCF once again proved fit with the reference model.…”

“…Every propagation process is linked to a cluster of scatters, with a cluster size that varies according to the position of the TX and RX. The time-varying channel transfer function can be given by (1) [3] : …”

A Novel Wideband MIMO Car-to-Car Channel Model Based on a Geometrical Semi-Circular Tunnel Scattering Model

“…Numerous mobile-to-mobile (M2M) channel models have been developed based on different geometrical scattering models, such as the two-ring model [6], the elliptical model [7], the rectangular model [8], the T-junction model [9], the crossjunction model [10], and the curve model [11]. Narrowband MIMO C2C channel models can be found in [12], [13] for 5.9 GHz, which is the carrier frequency in dedicated short-range communication (DSRC) [14] systems.…”

MIMO Techniques for Jamming Threat Suppression in Vehicular Networks

“…MIMO systems, although thoroughly investigated, are mostly focused on how to improve some parameters of vehicular communications, for example, communication range and throughput. Previous work mainly focuses on explaining the benefits of using MIMO in VANETs [13] and examining propagation models [14,15] and OFDM-based MIMO systems [16]. Previous works did not study MIMO systems as an active defense mechanism that overcomes different types of RF jamming attacks.…”