An Energy-Efficient Secure Routing and Key Management Scheme for Mobile Sinks in Wireless Sensor Networks Using...

Area of Science:

• Computer Science
• Network Security
• Wireless Sensor Networks

Background:

• Mobile sinks are crucial for sensor network applications like military and homeland security.
• Existing research on sink mobility often overlooks security considerations.
• Integrating security during the design phase is paramount for robust sensor network routing.

Purpose of the Study:

• To present SCODEplus, an energy-efficient secure routing and key management scheme for mobile sinks in sensor networks.
• To address the security challenges posed by sink mobility in large-scale sensor networks.
• To improve upon previous secure routing protocols by incorporating design-time security and efficiency enhancements.

Main Methods:

• Developed SCODEplus, integrating key management and routing protocols during the design phase.
• Organized network topology in a hexagonal plane for enhanced efficiency.
• Implemented sensor node deployment based on Gaussian distribution for realistic scenarios.
• Ensured no GPS or external location services are required for node positioning.

Main Results:

• SCODEplus effectively defends against common sensor network attacks, including node compromise, replay, selective forwarding, sinkhole, wormhole, Sybil, and HELLO flood attacks.
• The hexagonal topology and integrated design improve efficiency over previous square-grid topologies.
• Security analysis confirms the scheme's resilience against node compromise impacts on non-compromised links.

Conclusions:

• SCODEplus offers a significant advancement in secure and energy-efficient routing for mobile sensor networks.
• The proposed scheme provides robust security against a wide range of attacks.
• Performance evaluations demonstrate substantial reductions in communication overhead, energy consumption, and latency, with high packet delivery success rates (>97%).