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Energy-Efficient User Association Strategy for Hyperdense Heterogeneous Networking in the Fifth Generation Systems
Joint Authors
Li, Lei
Jin, Hao
Yan, Zhipeng
Yang, Changqing
Wu, Yong
Source
International Journal of Antennas and Propagation
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Redesigning user association strategies to improve energy efficiency (EE) has been viewed as one of the promising shifting paradigms for the fifth generation (5G) cellular networks.
In this paper, we investigate how to optimize users’ association to enhance EE for hyper dense heterogeneous networking in the 5G cellular networks, where the low-power node (LPN) much outnumbers the high-power node (HPN).
To characterize that densely deployed LPNs would undertake a majority of high-rate services, while HPNs mainly support coverage; the EE metric is defined as average weighted EE of access nodes with the unit of bit per joule.
Then, the EE optimization objective function is formulated and proved to be nonconvex.
Two mathematical transformation techniques are presented to solve the nonconvex problem.
In the first case, the original problem is reformulated as an equivalent problem involving the maximization of a biconcave function.
In the second case, it is equivalent to a concave minimization problem.
We focus on the solution of the biconcave framework, and, by exploiting the biconcave structure, a novel iterative algorithm based on dual theory is proposed, where a partially optimal solution can be achieved.
Simulation results have verified the effectiveness of the proposed algorithm.
American Psychological Association (APA)
Li, Lei& Jin, Hao& Yan, Zhipeng& Yang, Changqing& Wu, Yong. 2015. Energy-Efficient User Association Strategy for Hyperdense Heterogeneous Networking in the Fifth Generation Systems. International Journal of Antennas and Propagation،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1065146
Modern Language Association (MLA)
Li, Lei…[et al.]. Energy-Efficient User Association Strategy for Hyperdense Heterogeneous Networking in the Fifth Generation Systems. International Journal of Antennas and Propagation No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1065146
American Medical Association (AMA)
Li, Lei& Jin, Hao& Yan, Zhipeng& Yang, Changqing& Wu, Yong. Energy-Efficient User Association Strategy for Hyperdense Heterogeneous Networking in the Fifth Generation Systems. International Journal of Antennas and Propagation. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1065146
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1065146