Trusted Energy-Aware Hierarchical Routing (TEAHR) for Wireless Sensor Networks.

Area of Science:

• Computer Science
• Network Security
• Wireless Sensor Networks

Background:

• Wireless Sensor Networks (WSNs) are rapidly expanding across critical applications like healthcare and defense.
• Data security during transmission is a major concern due to high data volumes and network vulnerabilities.
• Existing trust-based routing mechanisms often suffer from high computational complexity and susceptibility to attacks.

Purpose of the Study:

• To propose a novel framework, Trusted Energy-Aware Hierarchical Routing (TEAHR), for enhancing security in WSNs.
• To introduce a multi-level trust assessment system that addresses dynamic network topologies and evolving cyber threats.
• To develop an adaptive trust assessment mechanism that efficiently manages computational and storage resources.

Main Methods:

• TEAHR employs a multi-level trust assessment including energy, forwarding, consistency, behavioral trust, and anomaly detection.
• An adaptive trust assessment mechanism adjusts to network conditions and node activities, mitigating complexity and spoofing attacks.
• Simulations were conducted under various scenarios, including node mobility, density variations, and sophisticated attacks (Sybil, wormhole, replay).

Main Results:

• TEAHR demonstrated efficient use of computational and storage resources, enhancing overall network performance and security.
• The framework maintained network connectivity even with isolated nodes due to trust misbehavior, reducing misjudgment in trust evaluation.
• Empirical analysis showed a 15% reduction in total latency and a 20% enhancement in energy efficiency compared to conventional techniques.

Conclusions:

• TEAHR is a high-performance framework that significantly outperforms existing WSN security solutions.
• The unique energy metrics in TEAHR extend network lifespan while improving data routing trust and trustworthiness.
• TEAHR is a strong candidate for securing industrial IoT applications and urban sensor networks, ensuring stable packet forwarding rates in adversarial environments.