ADRIN2.0: Enabling Post-Disaster Communication Through Adaptive Mobility-Informed Routing

In areas affected by natural disasters, the functionality of communication networks is often compromised, resulting in partial or complete outages. Effective message sharing, crucial for facilitating prompt recovery efforts, is achieved by establishing mobile ad-hoc networks among user-owned devices. Network operations in post-disaster scenarios are inhibited by intermittent connectivity, delays, and energy constraints, necessitating routing strategies that ensure seamless communication amidst node failures and mobility challenges. To meet this challenge, we previously introduced an adaptive and distributed routing mechanism named ADRIN, capitalizing on the inherent periodicity in human mobility. The present work, ADRIN2.0, extends the capabilities of ADRIN by incorporating a first-order Markov model-based mobility tracing approach to discern stable communication routes. It creates a spatiotemporal ad-hoc network to relay data multi-hop to the base station. Extensive simulations affirm that ADRIN2.0 approximates the underlying mobility distribution and facilitates data forwarding, even during node failures. ADRIN2.0 achieves a balance between data delivery rate and energy efficiency while minimizing latency, showing improvements over three centralized and two distributed routing benchmarks.