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The dynamicity of distributed wireless networks caused by node mobility, dynamic network topology, and others has been a major challenge to routing in such networks. In the traditional routing schemes, routing decisions of a wireless node may solely depend on a predefined set of routing policies, which may only be suitable for a certain network circumstances. Reinforcement Learning (RL) has been shown to address this routing challenge by enabling wireless nodes to observe and gather information from their dynamic local operating environment, learn, and make efficient routing decisions on the fly. In this article, we focus on the application of the traditional, as well as the enhanced, RL models, to routing in wireless networks. The routing challenges associated with different types of distributed wireless networks, and the advantages brought about by the application of RL to routing are identified. In …