@article {26973,
	title = {Blockchain and Deep Reinforcement Learning Empowered Intelligent 5G Beyond},
	journal = {IEEE Network},
	volume = {33},
	number = {10-17},
	year = {2019},
	month = {05/2019},
	publisher = {IEEE},
	abstract = {Blockchain and AI are promising techniques for next-generation wireless networks. Blockchain can establish a secure and decentralized resource sharing environment. AI can be explored to solve problems with uncertain, time-variant, and complex features. Both of these techniques have recently seen a surge in interest. The integration of these two techniques can further enhance the performance of wireless networks. In this article, we first propose a secure and intelligent architecture for next generation wireless networks by integrating AI and blockchain into wireless networks to enable flexible and secure resource sharing. Then we propose a blockchain empowered content caching problem to maximize system utility, and develop a new caching scheme by utilizing deep reinforcement learning. Numerical results demonstrate the effectiveness of the proposed scheme.},
	author = {Dai, Y. and Xu, D. and Maharjan, Sabita and Chen, Z. and He, Q. and Zhang, Yan}
}
