Utility Maximization for Load Optimization in CellularWLAN Interworking Network Based on Generalized Benders Decomposition
Joint Authors
Wenjing, Li
Feng, Lei
Zhou, Fanqin
Meng, Luoming
Peng, Yu
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-06
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Telecommunications Engineering
Abstract EN
Load steering is widely accepted as a key SON function in cellular/WLAN interworking network.
To investigate load optimizing from a perspective of system utilization maximization more than just offloading to improve APs’ usage, a utility maximization (UTMAX) optimization model and an ASRAO algorithm based on generalized Benders Decomposition are proposed in this paper.
UTMAX is to maximize the sum of logarithmic utility functions of user data rate by jointly optimizing user association and resource allocation.
To maintain the flexibility of resource allocation, a parameter β is added to the utility function, where smaller β means more resources can be allocated to edge users.
As a result, it reflects a tradeoff between improvements in user throughput fairness and system total throughput.
UTMAX turns out to be a mixed integer nonlinear programming, which is intractable intuitively.
So ASRAO is proposed to solve it optimally and effectively, and an optional phase for expediting ASRAO is proposed by using relaxation and approximation techniques, which reduces nearly 10% iterations and time needed by normal ASRAO from simulation results.
The results also show UTMAX’s good effects on improving WLAN usage and edge user throughput.
American Psychological Association (APA)
Zhou, Fanqin& Feng, Lei& Peng, Yu& Wenjing, Li& Meng, Luoming. 2016. Utility Maximization for Load Optimization in CellularWLAN Interworking Network Based on Generalized Benders Decomposition. Mobile Information Systems،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1111581
Modern Language Association (MLA)
Zhou, Fanqin…[et al.]. Utility Maximization for Load Optimization in CellularWLAN Interworking Network Based on Generalized Benders Decomposition. Mobile Information Systems No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1111581
American Medical Association (AMA)
Zhou, Fanqin& Feng, Lei& Peng, Yu& Wenjing, Li& Meng, Luoming. Utility Maximization for Load Optimization in CellularWLAN Interworking Network Based on Generalized Benders Decomposition. Mobile Information Systems. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1111581
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1111581