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Sensors 2019, 19(2), 243; https://doi.org/10.3390/s19020243

An Optimized Probabilistic Delay Tolerant Network (DTN) Routing Protocol Based on Scheduling Mechanism for Internet of Things (IoT)

1
School of Management and E-Business, Zhejiang Gongshang University, Hangzhou 310018, China
2
School of Computer and Information Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
3
Department of Communications, Universidad Politecnica de Valencia, 46730 Valencia, Spain
This paper is an extended version of “An Optimized Probabilistic Routing Protocol based on Scheduling Mechanism for Delay Tolerant Network” published in the Proceedings of the TridentCom: 11th International Conference on Testbeds and Research Infrastructures, Hangzhou, China, 14–15 June 2016.
*
Author to whom correspondence should be addressed.
Received: 30 November 2018 / Revised: 2 January 2019 / Accepted: 4 January 2019 / Published: 10 January 2019
(This article belongs to the Special Issue Algorithm and Distributed Computing for the Internet of Things)
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Abstract

Many applications of Internet of Things (IoT) have been implemented based on unreliable wireless or mobile networks like the delay tolerant network (DTN). Therefore, it is an important issue for IoT applications to achieve efficient data transmission in DTN. In order to improve delivery rate and optimize delivery delay with low overhead in DTN for IoT applications, we propose a new routing protocol, called Scheduling-Probabilistic Routing Protocol using History of Encounters and Transitivity (PROPHET). In this protocol, we calculate the delivery predictability according to the encountering frequency among nodes. Two scheduling mechanisms are proposed to extend the traditional PROPHET protocol and improve performance in both storage and transmission in DTN. In order to evaluate the proposed routing protocol, we perform simulations and compare it with other routing protocols in an Opportunistic Network Environment (ONE) simulator. The results demonstrate that the proposed Scheduling-PROPHET can achieve better performances in several key aspects compared with the existing protocols. View Full-Text
Keywords: PROPHET routing; delay tolerant network; scheduling mechanism; ONE simulator; Internet of Things PROPHET routing; delay tolerant network; scheduling mechanism; ONE simulator; Internet of Things
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Mao, Y.; Zhou, C.; Ling, Y.; Lloret, J. An Optimized Probabilistic Delay Tolerant Network (DTN) Routing Protocol Based on Scheduling Mechanism for Internet of Things (IoT). Sensors 2019, 19, 243.

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