scholarly journals Vehicular Delay Tolerant Network Routing Algorithm Based on Bayesian Network

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 18727-18740 ◽  
Author(s):  
Jiagao Wu ◽  
Yahang Guo ◽  
Hongyu Zhou ◽  
Lu Shen ◽  
Linfeng Liu
Keyword(s):  
Bayesian Network ◽  
Routing Algorithm ◽  
Network Routing ◽  
Delay Tolerant Network ◽  
Delay Tolerant

scholarly journals Delay-Tolerant Network Routing Algorithm for Periodical Mobile Nodes

2014 ◽  
Vol 15 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Youngse Lee ◽  
Gowoon Lee ◽  
Hangki Joh ◽  
Intae Ryoo
Keyword(s):  
Routing Algorithm ◽  
Network Routing ◽  
Delay Tolerant Network ◽  
Mobile Nodes ◽  
Delay Tolerant

scholarly journals Location-assistant content distribution scheme for emergency rescue

2018 ◽  
Vol 14 (9) ◽  
pp. 155014771880046
Author(s):  
Guomin Zhang ◽  
Lihua Song ◽  
Haitao Wang ◽  
Chao Hu ◽  
Na Wang
Keyword(s):  
Content Distribution ◽  
Routing Algorithm ◽  
Mobility Model ◽  
Network Routing ◽  
Delay Tolerant Network ◽  
Message Delivery ◽  
Emergency Rescue ◽  
Course Of Action ◽  
Distribution Scheme ◽  
Delay Tolerant

In order to optimize the timeliness and pertinence of message delivery in emergency rescue scenarios and improve the service performance of emergency communications network, we propose a location-assistant content distribution scheme based on delay tolerant network. First of all, considering that the movement patterns of rescue teams tend to follow a predetermined course of action, we design a location-based group mobility model. Due to the intermittent network connectivity and variety of emergency service, a content-classification-based publish/subscribe architecture and a GenericSpray routing algorithm based on the prediction of overlap opportunity in spatio-temporal positions are proposed. Furthermore, we also give a cache management strategy based on the content significance. Since location-assistant content distribution scheme can predict the overlap of activity between rescue teams through the course of action, not only can the number of copy forwarding and message delivery delays be significantly reduced but also the priority delivery of important messages can be ensured by message classification. Simulation experiments show that compared with the traditional delay tolerant network routing algorithm and the classic first-in-first-out caching strategy, location-assistant content distribution scheme improves the performance of message delivery rate, transmission delay, and control overhead significantly.

scholarly journals A Framework and Mathematical Modeling for the Vehicular Delay Tolerant Network Routing

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Mostofa Kamal Nasir ◽  
Rafidah Md. Noor ◽  
Mohsin Iftikhar ◽  
Muhammad Imran ◽  
Ainuddin Wahid Abdul Wahab ◽  
...  
Keyword(s):  
Vehicular Ad Hoc Networks ◽  
Network Routing ◽  
Packet Delivery Ratio ◽  
Packet Transmission ◽  
Delay Tolerant Network ◽  
Delivery Ratio ◽  
Intermediate Node ◽  
Packet Delivery ◽  
Dtn Routing ◽  
Delay Tolerant

Vehicular ad hoc networks (VANETs) are getting growing interest as they are expected to play crucial role in making safer, smarter, and more efficient transportation networks. Due to unique characteristics such as sparse topology and intermittent connectivity, Delay Tolerant Network (DTN) routing in VANET becomes an inherent choice and is challenging. However, most of the existing DTN protocols do not accurately discover potential neighbors and, hence, appropriate intermediate nodes for packet transmission. Moreover, these protocols cause unnecessary overhead due to excessive beacon messages. To cope with these challenges, this paper presents a novel framework and an Adaptive Geographical DTN Routing (AGDR) for vehicular DTNs. AGDR exploits node position, current direction, speed, and the predicted direction to carefully select an appropriate intermediate node. Direction indicator light is employed to accurately predict the vehicle future direction so that the forwarding node can relay packets to the desired destination. Simulation experiments confirm the performance supremacy of AGDR compared to contemporary schemes in terms of packet delivery ratio, overhead, and end-to-end delay. Simulation results demonstrate that AGDR improves the packet delivery ratio (5–7%), reduces the overhead (1–5%), and decreases the delay (up to 0.02 ms). Therefore, AGDR improves route stability by reducing the frequency of route failures.

scholarly journals An investigation on the unwillingness of nodes to participate in mobile delay tolerant network routing

2013 ◽  
Vol 33 (2) ◽  
pp. 252-262 ◽  
Author(s):  
Jingwei Miao ◽  
Omar Hasan ◽  
Sonia Ben Mokhtar ◽  
Lionel Brunie ◽  
Kangbin Yim
Keyword(s):  
Network Routing ◽  
Delay Tolerant Network ◽  
Delay Tolerant
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