An Algorithm for Timely Transmission of Solicitation Messages in RPL for Energy-Efficient Node Mobility

Area of Science:

• Computer Science
• Networking
• Wireless Communication

Background:

• The IPv6 Routing Protocol for Low Power and Lossy Networks (RPL) is designed for wireless sensor networks but lacks support for node mobility.
• Existing RPL implementations do not efficiently handle the dynamic topology changes caused by moving nodes, impacting network stability and energy efficiency.

Purpose of the Study:

• To propose and evaluate an energy-efficient algorithm that enhances RPL's capability to support node mobility.
• To ensure stable and reliable data transmission in RPL networks with moving devices.

Main Methods:

• Developed a novel algorithm that dynamically adjusts route request message transmission intervals.
• Algorithm considers mobile node speed, direction, and neighbor node costs for adaptive routing.
• Performance evaluated experimentally against previous mobility support algorithms.

Main Results:

• The proposed algorithm significantly reduces the number of messages required for parent node selection after node movement.
• Observed lower energy consumption compared to existing algorithms due to reduced message overhead.
• Demonstrated improved efficiency in managing routes for mobile nodes in RPL networks.

Conclusions:

• The developed algorithm effectively addresses the challenge of node mobility in RPL networks.
• It offers a more energy-efficient and stable solution for data transmission in dynamic low-power wireless networks.
• This approach is crucial for applications involving mobile devices within RPL infrastructure.