Design of a Technique for Accelerating the WSN Convergence Process

Area of Science:

• Computer Science
• Network Engineering
• Wireless Communication

Background:

• Wireless Sensor Networks (WSNs) are crucial for environmental monitoring but face challenges in critical applications requiring rapid response.
• Existing WSNs can experience delays in network recovery following link or node failures, impacting performance.
• Fast Reroute (FRR) technology offers accelerated network recovery solutions.

Purpose of the Study:

• To develop a modified Ad hoc On-Demand Distance Vector (AODV) routing protocol for WSNs.
• To integrate Fast Reroute (FRR) principles for rapid link failure detection and network recovery.
• To enhance the resilience and responsiveness of WSNs in critical applications.

Main Methods:

• Modification of the AODV routing protocol by incorporating a fast link failure detection mechanism.
• Implementation of an additional Bidirectional Forwarding Detection (BFD) module based on RFC 5880.
• Testing and validation of the modified protocol within the OMNET++ simulation environment.

Main Results:

• The modified AODV protocol demonstrated a significant reduction in connection recovery time.
• The integration of BFD enabled faster detection of link failures through rapid 'Hello' messages.
• The enhanced WSN demonstrated improved performance in simulated network failure scenarios.

Conclusions:

• The modified AODV protocol with FRR and BFD effectively accelerates WSN recovery after link failures.
• This approach is suitable for critical WSN applications demanding high reliability and quick response times.
• The study validates the benefits of integrating FRR principles into WSN routing protocols for improved network performance.