Title
Optimized handover algorithm for two-tier macro-femto cellular LTE networks.
Abstract
In the last few years, femtocells have gained a great deal of interest as an emerging wireless and mobile access technology to improve indoor coverage and network capacity. In such an environment, mobility management is one of the major concerns that may limit the wide deployment and adoption of such networks. In this paper, we investigate the handover procedure for the two-tier macro/femto LTE networks. An optimized handover algorithm with an efficient call admission control has been proposed and described. Our proposed scheme is mainly designed to reduce the number of unnecessary handovers and to maintain the communication quality during the handover. The choice of the femtocell target takes into account the direction of the mobile user, its velocity and the quality of the signal. Performance evaluation results show that our algorithm minimizes both the number of hand-in and the handover drop rate. Besides, the signal quality in terms of SINR after the hand-in is maintained higher than a fixed threshold, which maximizes the sojourn time of the mobile user within the selected femtocell.
Year
DOI
Venue
2013
10.1109/WiMOB.2013.6673420
WiMob
Keywords
Field
DocType
Handover, Femtocell, Macrocell, LTE, Predicted direction
Radio resource management,Femto-,Femtocell,Mobility management,Call Admission Control,Computer science,Soft handover,Computer network,Real-time computing,Handover,Macrocell
Conference
ISSN
Citations 
PageRank 
2160-4886
1
0.36
References 
Authors
4
5
Name
Order
Citations
PageRank
Ahlam Ben Cheikh110.36
Mouna Ayari2454.13
Rami Langar346738.17
Guy Pujolle42015267.64
Leïla Azouz Saïdane514137.35