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A Reliable Mobility-Aware RPL Objective Function for IoT Applications

Mohammad Salehi, Ali Asghar | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52851 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Ejlali, Alireza
  7. Abstract:
  8. Internet of Things (IoT) is one of the most emerging fields in the computer science context. It is predicted that more than 9 billion devices will be connected to IoT networks by 2025. Considering the specifications of IoT devices such as low battery capacity and small memory, these networks face major challenges in energy consumption and reliability. One of the most important elements which have an indisputable effect on network efficiency is routing protocol. In this manner, IETF presented RPL in 2012. It is designed to create a robust network among IoT devices.Although RPL performs well in static networks, it is not designed originally for mobile networks and it has serious flaws in that context. Not only Reliability in those networks is too low, but also nodes consume a large amount of energy. In this regard, we proposed a new Objective Function (OF) to make the existing mobile devices in the system consume less energy and live longer and also communicate in a reliable manner.To achieve this goal, we should consider one of the most intrinsic attributes of the mobile node, velocity. The proposed OF uses nodes’ velocity and their positions to construct DODAG between mobile nodes and the sink node. The simulation results prove that we greatly improved reliability in the mobile network while constating mobiles’ energy consumption. ARMOR has increased the reliability of mobile networks in some cases more than 350 percent in respect to Murali, another OF for mobile networks
  9. Keywords:
  10. Reliability ; Objective Function ; Routing ; Internet of Things ; Replacement Policy

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