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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

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Mobility Aware Duty Cycling Algorithm (MADCAL) A Dynamic Communication Threshold for Mobile Sink in Wireless Sensor

Craig Thomson¹, Isam Wadhaj¹, Zhiyuan Tan¹

¹School of Computing, Edinburgh Napier University, 10 Colinton Rd, Edinburgh EH10 5DT, UK.

Sensors (Basel, Switzerland)

|November 16, 2019

Summary

This study introduces a lightweight MAC layer algorithm for wireless sensor networks to solve the hotspot issue. The algorithm uses predictable sink mobility to dynamically adjust node wake-up times, significantly improving energy efficiency and network lifetime.

Keywords:

duty cycling dynamic threshold mobile sink mobility awareness wireless sensor network

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Area of Science:

Wireless Sensor Networks
Network Protocols
Energy Efficiency in WSNs

Background:

The hotspot issue in wireless sensor networks (WSNs) leads to premature energy depletion in nodes near the sink, reducing overall network lifetime.
Mobile sink nodes partially address hotspots but still cause uneven energy consumption.
Existing solutions often rely on energy-intensive messaging or complex protocols.

Purpose of the Study:

To propose a lightweight MAC layer algorithm to mitigate the hotspot issue in WSNs.
To enhance network lifetime and energy efficiency by managing node communication with a mobile sink.
To reduce energy consumption by eliminating the need for extra messaging.

Main Methods:

Developed a lightweight algorithm integrated into the media access control (MAC) layer of static nodes.
Utilized predictable sink node mobility and existing node knowledge (location, interference range) to create a dynamic communication threshold.
Implemented and tested the algorithm on a carrier-sense multiple-access-based MAC protocol.

Main Results:

Demonstrated significant improvements in energy consumption in both controlled and random environments.
Achieved improved frame delivery rates, effectively negating the impact of sink speed.
Showcased superior performance compared to existing duty cycling approaches.

Conclusions:

The proposed MAC layer algorithm effectively addresses the hotspot issue in WSNs.
Predictable sink mobility combined with localized node information offers an energy-efficient solution.
The algorithm provides a practical and effective method for extending WSN lifetime.