Vehicular networking has significant potential to enable diverse applications associated with traffic safety, efficiency and infotainment.In this survey tutorial paper we introduce the basic characteristics of vehicular networks, provide an overview requirements, along challenges their proposed solutions.In addition, current past major ITS programs projects in USA, Japan Europe.Moreover, architectures protocol suites employed such Europe are discussed.

Abstract Recent development in wireless technology enables communication between vehicles. The concept of co-operative adaptive cruise control (CACC)--which uses vehicles--aims at string stable behavior a platoon "String stability" means any non-zero position, speed, and acceleration errors an individual vehicle do not amplify when they propagate upstream. In this article, we will discuss the stability CACC evaluate its performance under varying packet loss ratios, beacon sending...

Vehicular networking is an enabling technology for intelligent transportation systems (ITS). Different types of vehicular traffic applications are currently being investigated. In this paper we briefly introduce the communication requirements a cooperative adaptive cruise control (C-ACC) efficiency application. Furthermore, propose channel busy time model to evaluate solution space beaconing system designed communicate information both vital and sufficient in particular C-ACC. We identify...

Recent development in wireless technology enables communication between vehicles. The concept of Co-operative Adaptive Cruise Control (CACC) - which uses vehicles aims at string stable behaviour a platoon "String stability" means any non-zero position, speed, and acceleration errors an individual vehicle do not amplify when they propagate upstream. In this paper, we will discuss the stability CACC evaluate its performance with various packet loss ratios, beacon sending frequencies time...

The recently standardised IEEE 802.11p Wireless Access in Vehicular Environment (WAVE) protocol is envisioned to be used for Vehicle-to-Vehicle and Vehicle-to-Infrastructure communications. We provide an analysis of 802.11p's performance when the exchange small status messages known as beacons. These beacons enable vehicles establish a Cooperative Awareness from which many applications can draw their inputs. Applications have been proposed increase safety, efficiency comfort future road...

Vehicular ad hoc networks (VANETs) are emerging as a new network environment for intelligent transportation systems (ITS). In many applications envisaged VANETs, traffic information needs to be disseminated group of relevant vehicles and maintained duration time. Here system abiding geocast is presented disseminating warning message among mobile in VANETs. this on stretch roads carry safety messages the opposite direction, so warn them regarding dangerous situation ahead. The objective that...

Vehicular networks (VANETs) are a growing research area with large number of use cases. Foreseen applications include safety applications, traffic efficiency enhancements, and infotainment services. To make future deployment successful, it is imperative that all matched proper security mechanisms. Current proposals mostly focus on entity authorization by establishing public key infrastructure. Such proactive efficiently excludes nonauthorized entities from the network. However, in face...

Cooperative Adaptive Cruise Control (CACC) is nowadays a promising technique to increase highway through-put, safety and comfort for vehicles. Enabled by wireless communication, CACC allows platoon of vehicles achieve better performance than Control; however, since employed, problems related unreliability arise. In this paper, we design digital controller stability, enhanced an observer robustness against packet losses. A preliminary set simulation results presented, which confirms the...

In this paper we introduce a new geocasting concept to target vehicles based on where they will be in the direct future, stead of their current position. We refer as constrained geocast. This may useful situations have interdependencies (future) maneuvers. developed first version such protocol context an automated merging application, and tested it using simulations. Results show that is able meet requirements applications. Compared common geo-broadcast becomes more reliable road traffic...

The multitude of applications envisioned for vehicular ad hoc networks requires efficient communication and dissemination mechanisms to prevent network congestion. In-network data aggregation promises reduce bandwidth requirements enable scalability in large networks. However, most existing schemes are tailored specific types data. Proper comparative evaluation different is difficult. Yet, comparability essential properly measure accuracy, performance, efficiency. We outline a modeling...

Currently most of the mobility management solutions rely on a centralized anchor entity, which is in charge both mobility-related control plane and user data forwarding. This makes prone to several performance limitations such as suboptimal routing, low scalability, potential single point failure lack granularity for service. Distributed Mobility Management (DMM) solution that can be applied overcome these limitations. In this paper we introduce novel Software Defined Networking...

Several promising applications for Vehicular Ad-hoc Networks (VANETs) exist. For most of these applications, the communication among vehicles is envisioned to be based on broadcasting messages. This due inherent highly mobile environment and importance messages nearby. To deal with broadcast communication, dissemination protocols must defined in such a way as (i) prevent so-called storm problem dense networks (ii) disconnected sparse topologies. In this paper, we present Simple Robust...

This paper is about obtaining stable vehicle platooning by using Cooperative Adaptive Cruise Control when the communication unreliable and suffers from message losses. We model losses as independent random events we propose an original design for cooperative controller, which effectively mitigates effects of Our explicitly takes into account stochastic nature considering both average evolution system variations around it. The control promotes plant stability string error dynamics...

While non-orthogonal multiple access (NOMA) improves spectral efficiency, it adds complexity to the receivers due successive interference cancellation (SIC). Prior studies on energy efficiency of NOMA overlook SIC overhead and rely simplistic power consumption models (PCM). To fill this gap, we first introduce PCM- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\kappa $ </tex-math></inline-formula> that...

IEEE 802.11 CSMA/CA is generally considered to be well-understood, and many detailed models are available. However, most focus on Unicast in small-scale W-LAN scenarios. When modelling beaconing VANETs, the Broadcast nature (potentially) large number of nodes cause phenomena specific large-scale broadcast scenarios not captured present DCF. In a VANET scenario, transmissions from coordinated performed so-called Streaks, without intermediate backoff counter decrement. We adapt model by...

In-network data aggregation is a promising communication mechanism to reduce bandwidth requirements of applications in vehicular ad-hoc networks (VANETs). Many schemes have been proposed, often with varying features. Most are tailored specific application scenarios and for operations. Comparative evaluation different therefore difficult. An centric view does also not tap into the potential cross aggregation. Generic modeling may help unlock this potential. We outline generic approach enable...