—Long term evolution (LTE) heterogeneous network
can represent improvement of cell coverage and network
capacity by adopting advanced physical layer techniques. In
heterogeneous network, one of the major challenges is the
handover decision between different eNBs. The utilization of the
picocells results to use more network resources and handover
procedure. In this paper, we investigate the hysteresis margin
and load balancing problem in a 3GPP LTE heterogeneous
network. Firstly, we consider A3 event, Hysteresis Margin (HM)
and Cell Individual Offset (CIO) objectives are not fixed for
every cells. Then we analyze the complexity of the problem and
propose a practical algorithm which calculate adaptive
hysteresis margin and load balancing in heterogeneous network.
The results show that our algorithm can lead to significantly
better performances, such as redundant handovers reduction
and improvement of the network performance.
—LTE heterogeneous network, hysteresis
margin, cell individual offset, load balancing.
Ranada Prasad Ray is with the Communication and Information
Department, Chongqing University of Posts and Telecommunications,
China (e-mail: email@example.com).
Lun Tang is with the Chongqing University of Posts and
Telecommunications, Chongqing, China (e-mail: firstname.lastname@example.org).
Cite: Ranada Prasad Ray and Lun Tang, "Hysteresis Margin and Load Balancing for Handover in Heterogeneous Network," International Journal of Future Computer and Communication vol. 4, no. 4, pp. 231-235, 2015.