A novel handover scheme to support small-cell users in a HetNet environment

Author

Hansung Leem ; JaYeong Kim ; Dan Keun Sung ; Yunjung Yi ; Byoung-Hoon Kim

Author_Institution

Dept. of EE, KAIST, Daejeon, South Korea

fYear

2015

fDate

9-12 March 2015

Firstpage

1978

Lastpage

1983

Abstract

Deployment of small cells is one of the most efficient solutions to improve the energy efficiency in mobile communication networks. However, small cell topology has a disadvantage such as frequent handovers of mobile user equipments (UEs). To solve this handover problem for small-cell users in a HetNet environment, we propose a novel handover scheme utilizing a cooperation-based cell clustering scheme for reducing handover overhead in core network (CN) and also signaling overhead among small cells. When a UE in active mode moves randomly, we can significantly reduce the handover ratio through the proposed scheme, compared with that of the conventional schemes. In particular, if the UE speed is 3 km/h, this ratio is approximately 0.07.

Keywords

cellular radio; mobility management (mobile radio); telecommunication network topology; telecommunication signalling; HetNet environment; cooperation-based cell clustering scheme; core network; energy efficiency; frequent handovers; handover overhead; handover problem; handover scheme; mobile communication networks; mobile user equipments; signaling overhead; small cell topology; small-cell users; Conferences; Handover; Mobile communication; Mobile computing; Network topology; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2015 IEEE

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/WCNC.2015.7127771

Filename

7127771