摘要
The rapid advancement in 5G networks calls for more key technologies to support.To promote its wide deployment and application,ultra-dense network(UDN)plays a significant part by providing high data rate and realizing seamless coverage and low delay.There have proposed many related works on 5G UDN,such as the literatures[1,2].However,UDN still faces some security challenges.For instance,it needs to guarantee the reliable and continuous connection and provide communication security.
基金
This work was supported by the National Natural Science Foundation of China(Grant Nos.U1708262,U1736203,61872449)
the Scientific and Technological Project of Henan Province(182102210588).
