Dynamic Cooperative Energy and Coverage Management for V2G-Enhanced RAN Resilience

he resilience of cellular communication is paramount, given how widely its services are used. However, it also depends on the resilience of the power grid, which is increasingly threatened by extreme weather events and the growing reliance on distributed, intermittent energy sources. Current base station backup systems, typically limited to 2-6 hours of autonomy, operate in isolation and fail to leverage spatial redundancy. This paper proposes the Multi-Site Resiliency Cooperative (MSRC) framework, a unified control strategy that transforms independent sites into a collaborative energy cluster. We formulate a two-stage mixed-integer optimization problem that jointly manages radio coverage adaptation switching sites between helping, assisted, and deep-sleep modes and dynamic Vehicle-to-Grid (V2G) energy injection. By proactively reshaping cell boundaries and traffic loads based on real-time battery states, MSRC maximizes network survival while prioritizing critical service classes. Extensive simulations on a 19-site urban network demonstrate that the proposed framework extends survival time by 96% and maintains 94% service continuity compared to conventional baselines. Crucially, MSRC requires no physical in- frastructure upgrades, offering operators a deployable, software- defined solution for outage-resilient green communications.