Vigorous technique for augmented lifetime in WSNs.

Area of Science:

• Computer Science
• Electrical Engineering
• Network Engineering

Background:

• Energy consumption is a critical challenge in Wireless Sensor Networks (WSNs).
• Existing WSN energy efficiency solutions often address factors in isolation, leading to suboptimal performance.
• The proliferation of connected devices necessitates holistic approaches to WSN energy management.

Purpose of the Study:

• To propose an integrated approach, Vigorous Technique for Augmented Lifetime (ViTAL), for optimizing WSN energy efficiency.
• To holistically address node positioning, network topology, radio conditions, and node mobility.
• To overcome limitations of existing methods focusing on single aspects of WSN optimization.

Main Methods:

• ViTAL employs a three-phase approach: node minimization for area coverage, Connected Dominating Set (CDS) for routing, and a 4-factor Cluster Head (CH) selection model.
• Optimized deployment is achieved using the Hybrid Simulated Annealing (HSA) algorithm.
• Efficient routing is facilitated through the CDS construction.

Main Results:

• ViTAL significantly outperforms traditional protocols like LEACH, EE-LEACH, and I-LEACH in both static and mobile WSN scenarios.
• In static environments, ViTAL achieved average improvements of up to 80.9% in network lifetime, 83% in throughput, and 68% in residual energy.
• In mobile scenarios, ViTAL extended the first node's lifespan by up to 68.2% and increased the number of rounds before the last node became inactive by up to 74%.

Conclusions:

• The integrated approach of ViTAL, combining optimized deployment and efficient routing, is highly effective for enhancing WSN performance.
• ViTAL demonstrates superior adaptability and energy efficiency in both static and dynamic (mobile) WSN environments.
• The holistic consideration of multiple factors in ViTAL leads to substantial improvements in network lifetime, throughput, and residual energy.