V2V communication quality with multi-antenna in field assessments and simulations

In automotive and ITS industries, quality of wireless communication technologies becomes a hot research topic, as wireless technologies have been applied not only to entertainment or information applications, but also to mission critical safety applications. These safety applications have challenges, such as, large speed of wireless transmitter/receiver in a vehicle, critical radio environments, for example building canyons and tunnels. Moreover, in crash warning applications by using peer-to-peer (vehicle-to-vehicle, V2V) communications, vehicles have to exchange their locations, speeds, and directions between neighboring vehicles, within a few seconds prior to potential vehicle crashes, even in freeway intersections crowded with over 100 vehicles. In this paper, we will first introduce crash warning applications with V2V communication and its preliminary field assessment. Then we will introduce our simulation results of V2V communication quality for crash warning applications with considering radio interference from neighboring vehicles. Then we will introduce various multi-antenna solutions, including MIMO (Multi Input Multi Output) that will improve the V2V communication quality to help more vehicles exchange data within shorter time periods even in areas crowded with many vehicles, including their advantages and challenges for automotive and ITS applications.