Exploring LTE-V link level performance by geometry enhanced winner II channel model

The wireless signal propagation environment in future 5G is a challenging task to take into account all factors such as shapes of landscapes, buildings, moving objects and trees/foliage. Reliable and efficient Long-Term Evolution-Vehicle (LTE-V) simulation requires a channel model to be realistic enough to provide all required effects of a real propagation environment. In this paper, we propose a Geometry Enhanced Winner II V2V channel model (GEWV), which simulates the channel responses among vehicles in arbitrary places with detailed geographical information (e.g., placement of buildings). After exploiting the outlines of vehicles and buildings, the light of-sight (LOS)/none-light-of-sight (NLOS) links type are judged. In addition, the multiple-interaction reflections and diffractions are calculated. Then signal variations and multi-links time delays are generated. Therefore, this channel model reflects practical communication conditions more reliable in comparison to some existing LTE V2V channel models. It is applied to our developed link-level simulator obeying the Third-Generation Partnership Project (3GPP) Release 14 and compared with two other common channel models. Results validates the importance of the geometry surroundings in comparison with models with simple large-scale and small-scale propagation paths.