Localized Mobility Management for 5G Ultra Dense Network.

It is commonly agreed that the ultra dense network (UDN) will be a key technology to face extremely dense traffic and high-speed data rate in the fifth-generation (5G) network. However, due to its new characteristics such as high dense small cells, fast and flexible deployment of small cell access points, and flexible backhaul connectivity, how to enable mobility support is becoming a great challe...