Titlebook: User-Centric Ultra-Dense Networks for 5G; Shanzhi Chen,Fei Qin,Jiamin Liu Book 2018 The Author(s) 2018 User-Centric Ultra-Dense Networks (

Albinism

biopsy

Concept and Challenge of UUDN,d. UUDN is a wireless network that the AP density is comparable to the user density; this network will organize an AP Group (APG) as a following coverage to serve each user seamlessly without user’s involvement. UUDN lets user feel like a network always following him. So, the network shall intellige

世俗

outset

千篇一律

Simulation and System Solution,and increasing of the handover failure. In addition, the dense deployment of APs needs to optimize the configuration of the handover threshold, which gives the challenges of network planning. Dual connection can reduce the handover failure rate, UE at least can guarantee the connection in the Master

dapper

Summary,osed. Based on the UUDN concept, we provide a novel network architecture. The new architecture is designed with the idea of localization, flatter, U/C separation, user-centric, intelligent and flexible networking.

細(xì)絲

Book 2018based on “de-cellular” and “user-centric” is proposed with three kinds of decoupling: user plane and control plane decoupling from radio access, control and transmission decoupling from network, local service and network service decoupling...Key characteristics of UUDN are provided, including four a

foliage

2191-8112 gies.Proposes the novel principle of “de-cellular” and “user.This is the first book to introduce UUDN for 5G, including the concept, challenges, architecture and key technologies...The new network architecture based on “de-cellular” and “user-centric” is proposed with three kinds of decoupling: user

外表讀作

Concept and Challenge of UUDN,ntly recognize the user’s wireless communication environments, and then flexibly organize the required APG and resource to serve the user to let the user feel like always in the center of a “cell”. Figure 3.1 shows the concept from cell centric to user-centric.

Mechanics