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Transfer Learning: A Paradigm for Dynamic Spectrum and Topology Management in Flexible Architectures

In this paper, we introduce a novel paradigm of transfer learning for spectrum and topology management in a rapidly deployable opportunistic network for the post disaster and temporary event scenarios. The network architecture is designed to be rapidly changing between different disaster phases, and highly flexible during the temporary event period. Transfer learning is developed to learn the dynamic radio environment from network topologies. This also allows previously learnt information in earlier phases of a deployment to be efficiently used to influence the learning process in later phases of a deployment. A Transfer Learning strategy is designed to change the knowledge base from the most recent phase via multi-agent coordination. We evaluate transfer learning paradigm in a small cell Terrestrial eNB architecture, integrated with Q-Learning and Linear Reinforcement Learning. It is demonstrated that transfer learning significantly improves the initial performance, the convergence speed and the steady state QoS, by exchanging topology information for resource prioritization.