NDLI: Mobility-aware routing in delay tolerant networks

Content Provider	Springer Nature Link
Author	Zhang, Lichen Cai, Zhipeng Lu, Junling Wang, Xiaoming
Copyright Year	2015
Abstract	Delay tolerant networks (DTNs) make use of opportunistic encounters of nodes for communication. The characteristics of high mobility of nodes, frequent link variation and long communication delays in DTNs result in an absence of an instantaneous end-to-end path from any source to a destination, making routing a challenge in DTNs. To deal with this issue, a lot of routing schemes have been proposed, in which future contacts of nodes are predicted based on node mobility traces and contact information. However, the previous works did not consider the spatial information of nodes, such as dwelling time at a location, and the transitivity of contacts in the prediction process of future encounter opportunities of nodes. In this paper, a novel mobility prediction-based routing (MPR) scheme is proposed for DTNs, in which the spatial information of nodes and contact transitivity are both taken into account. Specifically, a time-homogeneous semi-Markov process model is proposed to describe node mobility. By employing the semi-Markov model, we formulate the probability of a node destined to an area subject to the remaining time period constraint. The simulation results show that the proposed MPR scheme substantially improves delivery ratio and reduces delivery latency compared with traditional DTN routing schemes.
Starting Page	1111
Ending Page	1123
Page Count	13
File Format	PDF
ISSN	16174909
Journal	Personal Technologies
Volume Number	19
Issue Number	7
e-ISSN	16174917
Language	English
Publisher	Springer London
Publisher Date	2015-08-23
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Delay/disruption-tolerant networks (DTNs) Semi-Markov model Contact transitivity Routing Prediction User Interfaces and Human Computer Interaction Computer Science Personal Computing Mobile Computing
Content Type	Text
Resource Type	Article
Subject	Management Science and Operations Research Library and Information Sciences Computer Science Applications Hardware and Architecture

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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