scholarly journals Enabling delay-tolerant communications for partially connected vehicular ad hoc networks

2012 ◽  
Vol 11 (2/3) ◽  
pp. 157 ◽  
Author(s):  
Kadri Kaan Sevimli ◽  
Mujdat Soyturk
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Hoc Networks ◽  
Delay Tolerant

scholarly journals Applicability of Overlay Non-Delay Tolerant Position-Based Protocols in Highways and Urban Environments for VANET

2021 ◽  
Vol 13 (2) ◽  
pp. 9-24
Author(s):  
Mahmoud Ali Al Shugran
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Routing Protocols ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Delivery Ratio ◽  
Hop Count ◽  
On The Road ◽  
Hoc Networks ◽  
Delay Tolerant

Vehicular Ad hoc Networks (VANETs) is new sort in wireless ad-hoc networks. Vehicle-to-Vehicle (V2V) communication is one of the main communication paradigms that provide a level of safety and convenience to drivers and passengers on the road. In such environment, routing data packet is challenging due to frequently changed of network topology because of highly dynamic nature of vehicles. Thus, routing in VANETs in require for efficient protocols that guarantee message transmission among vehicles. Numerous routing protocols and algorithms have been proposed or enhanced to solve the aforementioned problems. Many position based routing protocols have been developed for routing messages that have been identified to be appropriate for VANETs. This work explores the performances of selected unicast non-delay tolerant overlay position-based routing protocols. The evaluation has been conducted in highway and urban environment in two different scenarios. The evaluation metrics that are used are Packet Delivery Ratio (PDR), Void Problem Occurrence (VPO), and Average Hop Count (AHC).

Routing in Vehicular Delay Tolerant Networks

2021 ◽  
pp. 191-203
Author(s):  
Anamika Chauhan ◽  
Kapil Sharma ◽  
Alka Aggarwal
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
High Speed ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Delay Tolerant Networks ◽  
Delay Tolerant Network ◽  
Efficient Management ◽  
Hoc Networks ◽  
Delay Tolerant

With the ever-escalating amount of vehicular traffic activity on the roads, the efficient management of traffic and safety of the drivers and passengers is of paramount gravity. Vehicular ad-hoc networks (VANETs) have emerged as the systems where vehicles would be perceptive of the locality and can supply the driver with required inputs to take necessary actions to alleviate the various issues. The system is designed to detect and identify essential traffic events and inform all concerned entities and take appropriate action. The characteristics of VANET are the topology is highly mobile, depends on city infrastructure, and the high speed of vehicles. These challenges result in frequent disruption of connections, long delays in delivering the messages. The challenges are overcome through the vehicular delay-tolerant network (VDTN) routing protocols are used that can facilitate communication under these network challenges. In this chapter, the authors evaluate the effect of the node density and message sizes on the performance of the various VDTN routing protocols.

Mobility Models for Ad-Hoc Networks

2012 ◽  
pp. 51-64
Author(s):  
Shrirang Ambaji Kulkarni ◽  
G. Raghavendra Rao
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Multihop Wireless Networks ◽  
Mobility Models ◽  
Multihop Wireless ◽  
Network Applications ◽  
Simulation Based ◽  
Hoc Networks ◽  
Delay Tolerant

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.

scholarly journals Efficient Time-Stable Geocast Routing in Delay-Tolerant Vehicular Ad-Hoc Networks

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 171034-171048
Author(s):  
Luis R. Gallego-Tercero ◽  
Rolando Menchaca-Mendez ◽  
Mario E. Rivero-Angeles ◽  
Ricardo Menchaca-Mendez
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Hoc Networks ◽  
Delay Tolerant
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