TY - GEN
T1 - A novel handover process for mobility load balancing in LTE heterogeneous networks
AU - Su, Szu Lin
AU - Chih, Tsung Hsiu
AU - Wu, Sin Bei
PY - 2019/5
Y1 - 2019/5
N2 - To fulfill the explosive growth of mobile communication traffic demands, the heterogeneous networks (HetNets) in which macro cells and small cells (picocells, femtocells) are coexistent have been widely discussed in LTE systems. However, with the increase of small cells, user equipments (UEs) will experience frequent handovers which not only induce high signaling overhead, but also raise the risk of call-dropping. In addition, the different cell coverages and irregular mobile traffic lead to unbalanced loading in the HetNets. An overloaded cell will suffer from high call-block-rate (CBR) and call-drop-rate (CDR), especially in mobility networks. This work addresses on these problems and proposes a novel handover process to adaptively adjust cell-individual-offset (CIO) based on different average cell loading. Moreover, an access control mechanism is also presented to resolve the resource shortage problem in a congested network. Simulation results show the proposed work can significantly improve CDR compared with previous works.
AB - To fulfill the explosive growth of mobile communication traffic demands, the heterogeneous networks (HetNets) in which macro cells and small cells (picocells, femtocells) are coexistent have been widely discussed in LTE systems. However, with the increase of small cells, user equipments (UEs) will experience frequent handovers which not only induce high signaling overhead, but also raise the risk of call-dropping. In addition, the different cell coverages and irregular mobile traffic lead to unbalanced loading in the HetNets. An overloaded cell will suffer from high call-block-rate (CBR) and call-drop-rate (CDR), especially in mobility networks. This work addresses on these problems and proposes a novel handover process to adaptively adjust cell-individual-offset (CIO) based on different average cell loading. Moreover, an access control mechanism is also presented to resolve the resource shortage problem in a congested network. Simulation results show the proposed work can significantly improve CDR compared with previous works.
UR - http://www.scopus.com/inward/record.url?scp=85070913443&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070913443&partnerID=8YFLogxK
U2 - 10.1109/ICPHYS.2019.8780238
DO - 10.1109/ICPHYS.2019.8780238
M3 - Conference contribution
T3 - Proceedings - 2019 IEEE International Conference on Industrial Cyber Physical Systems, ICPS 2019
SP - 41
EP - 46
BT - Proceedings - 2019 IEEE International Conference on Industrial Cyber Physical Systems, ICPS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Conference on Industrial Cyber Physical Systems, ICPS 2019
Y2 - 6 May 2019 through 9 May 2019
ER -