scholarly journals A SURVEY ON VEHICULAR MOBILITY MODELING: FLOW MODELING

Author(s):  
NAYANA. P . VAITY ◽  
DNYANESHWAR. V. THOMBRE

Motion or Movement patterns of vehicles communicating wirelessly play a important role in the simulation based evaluation of Vehicular Ad Hoc Networks (VANETs). It is to know that recent research about mobility modeling has given direction for vehicular network study still to obtain realistic behavior of vehicles; developments in this area are required in detail level. In this paper, one of the main mobility modeling approach is discussed to the extent that it can help to understand models formulation and integr0ation strategies with network simulators. This approach is called as flow mobility modeling. It is put into the discussion and elaborated in such way it clarifies basics of flow modeling and its impact. It also finds a different ways of modeling and implementation into existing traffic simulators viz. SUMO, VISSIM etc. Flow of vehicle is a key aspect of flow modeling which is often used in VANET‘s simulation.

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2010
Author(s):  
Daniel Domingos Adriano ◽  
Carlos Montez ◽  
Antonio G. N. Novaes ◽  
Michelle Wangham

Milk-run tours with time windows are an essential strategy to collect goods to minimize production and transportation costs. Due to unexpected events at the supplier production or traffic congestion, delays can occur during the vehicle route execution, causing non-compliance between the logistics operator and the company. This paper describes the DMRVR (Dynamic Milk-Run Vehicle Routing) solution that uses a dynamic routing algorithm along with fog-based vehicular ad hoc networks for implementing the collection of goods in milk-run operations that respect the company’s time window. When a production delay occurs, the supplier sends a message through the vehicular network to alert the pickup vehicle, forcing it to make dynamic route changes to satisfy the constraints. We have implemented a queue with a timeout and retransmission features to improve the vehicular network’s message delivery. To assess the DMRVR solution, we analyzed the efficiency of the dynamic vehicle routing and the vehicular network impacts. In the experiments, we used an event-based network simulator OMNeT++ bidirectionally coupled with SUMO (Simulation of Urban Mobility), aiming to make the most realistic simulations. Simulation results show the average route time was lower than the time limit imposed by the company with the DMRVR solution. In dense vehicular network scenarios, the message delivery success rate is higher. Conversely, when the vehicular network scenario is sparse, it is necessary to balance network coverage and distribute more RSUs in specific places.


2011 ◽  
Vol 63-64 ◽  
pp. 416-420 ◽  
Author(s):  
Li Cui Zhang ◽  
Guo Qiang Zhang ◽  
Zhi Gang Wang ◽  
Fan Zhang ◽  
Xiao Fei Xu

The research on Communication based on Ad hoc networks between vehicles is highly concerned about in many countries. However, Vehicular Ad hoc Networks (VANETs) is in the environment in which traditional methods have certain limitations. In this paper, vehicular network scenarios and the probability of penetration model are given. Through adding obstacles and the probability of penetration model to NS2, GPSR performs better in the new simulation scenarios.


2019 ◽  
Vol 16 (10) ◽  
pp. 4356-4361 ◽  
Author(s):  
Seema Gaba ◽  
Kavita ◽  
Sahil Verma

The vehicular ad-hoc networks make a simple case of networks which are supposed to be very smart because of the tasks and crucial decision making they have to carry out. Since they are on the move, the transmission and reception of information has to be quick in order to make the networks efficient in term of computing time. Fog enabled VANET make the systems more capable by processing much of the information locally and only sending crucial decision making to the cloud which saves time and worth for all sub dependent systems. In this work we have reviewed the two fog enabled VANET schemes, one is SIVNFC (Secure intelligent vehicular network using fog computing) and the other is SOLVE (localization system frameworks).


Author(s):  
Shrirang Ambaji Kulkarni ◽  
G. Raghavendra Rao

Multihop wireless networks hold a lot of promise in terms of military based ad-hoc network applications, wireless sensor network based applications, along with vehicular and inter terrestrial applications. The simulation of these types of networks is required to analyze the working of these types of complex networks. An essential component of these simulation based studies is the modeling of mobility of nodes. Thus many mobility models have been proposed to model the movement of wireless nodes with various constraints and real world scenarios. In this chapter an insight is provided into the working of various mobility models along with its classification. The authors also analyze the performance of these mobility models by measuring their performances with appropriate mobility and connectivity metrics. The mobility models proposed to meet the challenges of vehicular ad-hoc networks and delay tolerant networks are also discussed.


Author(s):  
Ehsun Behravesh ◽  
Andrew Butler

This paper explores recent improvements in 802.11p multi-channel protocol in vehicular ad-hoc networks. We provide definitions for a vehicular network and explore the operation of 802.11 within a vehicular network. We also study on areas of improvements of this protocol and briefly discuss on advantages and disadvantages of each solution.Various solutions that various researchers have done to improve the 802.11p multi-channel protocol as it applies to vehicular networks are explored in this paper.


2009 ◽  
Author(s):  
Hilal Akay ◽  
Tuna Tugcu ◽  
George Maroulis ◽  
Theodore E. Simos

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