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Energy-Efficient Connected-Coverage Scheme in Wireless Sensor Networks
Yun Xu1, Wanguo Jiao1, Mengqiu Tian1
1College of Information Science and Technology, Nanjing Forestry University, Longpan Load 159, Nanjing 210037, China.
Sensors (Basel, Switzerland)
|October 31, 2020
Summary
This study enhances wireless sensor network lifetime by optimizing node scheduling and introducing the Improved-Distributed Energy-Efficient Clustering (I-DEEC) routing protocol. The combined approach reduces redundant nodes and improves energy efficiency for extended network operation.
Area of Science:
- Computer Science
- Electrical Engineering
- Network Engineering
Background:
- Wireless sensor networks (WSNs) face limited energy, impacting network lifetime.
- Existing solutions focus on either node scheduling or routing optimization individually.
- There's a need for integrated approaches to maximize energy utilization and network longevity.
Purpose of the Study:
- To propose an efficient solution combining node scheduling and routing protocol optimization for WSNs.
- To extend the operational lifetime of wireless sensor networks.
- To reduce redundant sensor nodes and enhance energy efficiency in data transmission.
Main Methods:
- A genetic algorithm-based node scheduling scheme identifies the minimum sensor nodes for target coverage.
- Redundant nodes are utilized for sleep scheduling and to replace dead nodes, extending network life.
- An Improved-Distributed Energy-Efficient Clustering (I-DEEC) routing protocol is developed, considering node energy and distance to the sink for cluster head selection.
- Uneven cluster construction and optimized data communication around the sink balance energy load.
Main Results:
- The genetic algorithm-based scheduling significantly reduces the number of redundant sensor nodes.
- The I-DEEC routing protocol demonstrates improved energy efficiency in data transmission.
- The integrated approach substantially extends the overall lifetime of the wireless sensor network.
Conclusions:
- Combining optimized node scheduling with the I-DEEC routing protocol is an effective strategy for prolonging WSN lifetime.
- The proposed methods address energy limitations by minimizing node redundancy and optimizing data routing.
- This research contributes a significant improvement in energy efficiency and network longevity for wireless sensor networks.
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