Yueyue Dai Du Xu Ke Zhang 0008 Sabita Maharjan Yan Zhang 0002 Deep Reinforcement Learning and Permissioned Blockchain for Content Caching in Vehicular Edge Computing and Networks. 2020 abs/2011.08449 CoRR https://arxiv.org/abs/2011.08449 db/journals/corr/corr2011.html#abs-2011-08449