Title
Mobility Management In Ultra-Dense Networks: Handover Skipping Techniques
Abstract
Ultra-dense network deployment is a key technology for potentially achieving the capacity target of next-generation wireless communication systems. However, such a deployment results in cell proliferation and cell size decrement, leading to an increased number of handovers and limited sojourn time within a cell, which severely degrade the user's quality of service (QoS). In this paper, we propose two intelligent handover skipping techniques to overcome the high handover rates. The first technique considers a user associated with a single base station (BS) and the decision to skip a handover is based on the upcoming cell's topology; we consider three criteria: 1) the area of the cell; 2) the trajectory distance within the cell; and 3) the distance of the BS from the cell edge. The second technique exploits BS cooperation and enables a dynamic handover skipping scheme, where the skipping decision is taken based on the BSs of three consecutive cells in the user's trajectory. This technique achieves a balance between BS cooperation and single BS transmission and manages to maintain a good QoS during the skipping phase. We show that the proposed techniques reduce both the handover rate and handover cost and outperform the conventional techniques for moderate to high-velocity values.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2810318
IEEE ACCESS
Keywords
Field
DocType
Handover, ultra-dense networks, base station cooperation, stochastic geometry, second-order Voronoi
Base station,Software deployment,Wireless,Mobility management,Computer science,Quality of service,Computer network,Throughput,Trajectory,Handover
Journal
Volume
ISSN
Citations 
6
2169-3536
9
PageRank 
References 
Authors
0.48
0
3
Name
Order
Citations
PageRank
Eleni Demarchou1102.87
Constantinos Psomas27819.13
Ioannis Krikidis33348180.98