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A Novel Adaptive Cluster Based Routing Protocol for Energy-Harvesting Wireless Sensor Networks
Bing Han1,2,3, Feng Ran1, Jiao Li1
1Department of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200444, China.
Sensors (Basel, Switzerland)
|February 26, 2022
Summary
Wireless sensor networks (WSNs) face energy limitations. This study introduces an adaptive hierarchical-clustering protocol for energy-harvesting WSNs (EH-WSNs) to ensure continuous coverage and extend network life.
Area of Science:
- Computer Science
- Electrical Engineering
- Network Engineering
Background:
- Wireless sensor networks (WSNs) are crucial for the Internet of Things (IoT) but suffer from limited node energy, impacting data collection efficiency.
- Energy harvesting (EH) extends WSN lifespan, but node unavailability during harvesting creates coverage gaps, compromising monitoring functions.
- Developing energy-efficient routing protocols for energy-harvesting WSNs (EH-WSNs) is vital to overcome these challenges.
Purpose of the Study:
- To propose an adaptive hierarchical-clustering-based routing protocol for EH-WSNs (HCEH-UC).
- To ensure uninterrupted target region coverage despite nodes entering energy-harvesting mode.
- To balance energy consumption and prolong the operational lifetime of EH-WSNs.
Main Methods:
- Implemented a hierarchical-clustering approach to distribute energy load among nodes.
- Introduced a distributed mode alternation mechanism to manage node availability during energy harvesting.
- Simulated the HCEH-UC protocol to evaluate its performance against conventional routing protocols.
Main Results:
- The HCEH-UC protocol effectively balances energy consumption across nodes.
- Distributed mode alternation successfully maintains continuous target coverage.
- Simulation results demonstrate that HCEH-UC prolongs the maximal lifetime coverage compared to conventional protocols.
Conclusions:
- The proposed HCEH-UC protocol addresses the critical challenge of node unavailability in EH-WSNs.
- It achieves uninterrupted target coverage by adaptively managing node working modes.
- HCEH-UC offers a viable solution for extending the effective operational period of energy-harvesting wireless sensor networks.
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