An Overview of Vehicular Communications

Abstract

The transport sector is commonly subordinate to several issues, such as traffic congestion and accidents. Despite this, in recent years, it is also evolving with regard to cooperation between vehicles. The fundamental objective of this trend is to increase road safety, attempting to anticipate the circumstances of potential danger. Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I) and Vehicle-to-Everything (V2X) technologies strive to give communication models that can be employed by vehicles in different application contexts. The resulting infrastructure is an ad-hoc mesh network whose nodes are not only vehicles but also all mobile devices equipped with wireless modules. The interaction between the multiple connected entities consists of information exchange through the adoption of suitable communication protocols. The main aim of the review carried out in this paper is to examine and assess the most relevant systems, applications, and communication protocols that will distinguish the future road infrastructures used by vehicles. The results of the investigation reveal the real benefits that technological cooperation can involve in road safety.

Visible Light Communication System Based on Software Defined Radio: Performance Study of Intelligent Transportation and Indoor Applications

“…V2D is a system, that links cars to many external receiving devices and will be particularly useful to bikers. Vehicles can communicate with V2D device on cycle to alert rider to potential danger or to avoid accidents [39,40,49]. V2P is a system which should be particularly useful to elderly persons, school kids and physically challenged persons.…”

Exact Error and Erasure Exponents for the Asymmetric Broadcast Channel

“…Another example comes from vehicle-to-vehicle (V2V) communications [22]. In these systems, vehicles form a communication network in which the vehicles themselves are communicating nodes.…”

“…3. A V2V communication network [22] in which receivers have different demands safety of all vehicles involved and, in particular, to prevent accidents. For a concrete example, let us consider three vehicles X , Y and Z; see Figure 3.…”

Millimeter Wave Radar for Intelligent Transportation Systems: a Case Study of Multi-Target Problem Solution

“…Typical key issues that need to be solved for a successful implementation are: cost, number of sensors, problems with choosing the right frequency, installation parameters, sensor fusion, low false positives / targets, etc. [20][21][22][23][24].…”