Paper Info
Title
Joint Placement of Controllers and Gateways in SDN-Enabled 5G-Satellite Integrated Network.
Abstract
Leveraging the concept of software-defined network (SDN), the integration of terrestrial 5G and satellite networks brings us lots of benefits. The placement problem of controllers and satellite gateways is of fundamental importance for design of such SDN-enabled integrated network, especially, for the network reliability and latency, since different placement schemes would produce various network performances. To the best of our knowledge, it is an entirely new problem. Toward this end, in this paper, we first explore the satellite gateway placement problem to obtain the minimum average latency. A simulated annealing based approximate solution (SAA), is developed for this problem, which is able to achieve a near-optimal latency. Based on the analysis of latency, we further investigate a more challenging problem, i.e., the joint placement of controllers and gateways, for the maximum network reliability while satisfying the latency constraint. A simulated annealing and clustering hybrid algorithm (SACA) is proposed to solve this problem. Extensive experiments based on real world online network topologies have been conducted and as validated by our numerical results, enumeration algorithms are able to produce optimal results but having extremely long running time, while SAA and SACA can achieve approximate optimal performances with much lower computational complexity.
Year
DOI
Venue
2018
10.1109/JSAC.2018.2804019
IEEE Journal on Selected Areas in Communications
Keywords
Field
DocType
Satellites,Logic gates,Reliability,Satellite broadcasting,Switches,5G mobile communication
Simulated annealing,Hybrid algorithm,Latency (engineering),Computer science,Real-time computing,Network topology,Default gateway,Reliability (computer networking),Cluster analysis,Computational complexity theory
Journal
Volume
Issue
ISSN
36
2
0733-8716
Citations 
PageRank 
References 
9
0.46
0
Authors
6
Name
Order
Citations
PageRank
Jiajia Liu1137294.60
Yongpeng Shi2251.70
Lei Zhao3723.85
Yurui Cao4534.39
Wen Sun5946.88
Nei Kato63982263.66