Load balancing with antenna tilt control in enhanced local area architecture

Bo Yu, Liuqing Yang, Hiroyuki Ishii, Xiang Cheng

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Small cell is an attractive and promising technology for improving capacity in traffic hotspots using cell densification. We consider the traffic load balancing problem for small cells under the enhanced Local Area (eLA) architecture utilizing the flexible 3-dimensional (3D) beamforming facilitated by the adoption of the active antenna system (AAS) at base stations (BSs). Different load balancing methods based on combinations of cell association algorithms and antenna tilt adjustment schemes are proposed and evaluated via system level simulations. Results show the potential gain of traffic load balancing with 3D beamforming in terms of cell edge user throughput. In particular, for the enhanced load balancing cell association combined with UE (user equipment)-specific tilting scheme, significant cell edge user throughput improvements can be achieved while good average cell throughput performance can still be maintained.

Original languageEnglish (US)
Article number7022975
JournalIEEE Vehicular Technology Conference
Issue numberJanuary
StatePublished - 2014
Externally publishedYes
Event2014 79th IEEE Vehicular Technology Conference, VTC 2014-Spring - Seoul, Korea, Republic of
Duration: May 18 2014May 21 2014

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