A DTN-based architecture for public transport networks

Abstract

Delay/disruption-tolerant networking has been exploited in a variety of communication scenarios to provide basic delay-tolerant Internet services. In this paper, we propose a delay/disruption-tolerant networking (DTN)-based architecture for dense urban environments that exploits the existing infrastructure of public transport networks to provide Internet services through applications that can withstand certain delays without significantly affecting user experience. To achieve data delivery within the delay tolerance threshold that each user defines, we couple the proposed architecture with the enhanced connectivity plan routing protocol (CARPOOL+) that includes smart mechanisms for route calculation. In particular, the proposed architecture exploits both scheduled and opportunistic contact opportunities and mitigates the impact of typical delays caused by traffic, road accidents, etc. Our simulation results show that the proposed architecture achieves high delivery ratio with low latency, even when significant delays occur. We also compare CARPOOL+ with the most well-known DTN routing solutions and show that CARPOOL+ achieves the highest delivery ratio with the lowest overhead.

Satellite-Assisted Disrupted Communications: IoT Case Study

“…Hence, any unsent data was stored for future flights to reduce the end-to-end latency of the delivered message. Focusing on urban environments, authors in [43] introduced a reference routing protocol for DTN-capable nodes, aiming to extend the Internet coverage in highly-dense environments, while in [44], DTN applications in existing infrastructure of public transport networks were investigated. Moreover, the work by [45] concentrated on practical experimentation to validate the effectiveness of DTN solutions in different scenarios, considering the routing in space.…”

Transmission Scheduling Method for Delivery of Large-Sized Data Object based on Delay Constrained Request over Scheduled Transportation Vehicles

“…Their results provide a starting point for future research. Also, [3], [11][12][13][14][15][16][17][18] study data delivery over a bus network, similar to our research, but focuses on routing methods. As far as we know, there is not any known research on transmission scheduling method on a data port to meet userspecified delay constraints for large data object delivery over public transportations systems.smart mobile device sends/receives data within user's tolerant delay by using Wi-Fi as much as possible.…”

“…Examples include buses and rails, among others. References [3,4] reported that a similar approach that relies on the use of "data mule" carriers to extend the Internet connectivity in a rural area. We believe that the "data mule" concept can be leveraged to support delay-constrained transport of large-sized data objects via public transportation facilities.…”

Big Data Offloading using Smart Public Vehicles with Software Defined Connectivity

“…It is one subtype of DTN, where nodes (vehicles) store and carry network data while waiting for opportunities to forward it. Komnios et al [3] introduced a CARPOOL+ routing technique of public transport by providing hotspot internet connectivity to all users and prior knowledge of their contacts. Similar work has been presented in [4], the author considered data center as a central point to pick up and deliver significant amount of data using public transport.…”