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  • TCOM2016UDN_v12

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Interference-aware energy efficiency maximization in 5G ultra-dense networks

Research output: Contribution to journalJournal article

Published
  • Chungang Yang
  • Jiandong Li
  • Qiang Ni
  • Alagan Anpalagan
  • Mohsen Guizani
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<mark>Journal publication date</mark>02/2017
<mark>Journal</mark>IEEE Transactions on Communications
Issue number2
Volume65
Number of pages12
Pages (from-to)728-739
Publication statusPublished
Early online date13/12/16
Original languageEnglish

Abstract

Ultra-dense networks can further improve the spectrum efficiency (SE) and the energy efficiency (EE). However, the interference avoidance and the green design are becoming more complex due to the intrinsic densification and scalability. It is known that the much denser small cells are deployed, the more cooperation opportunities exist among them. In this work, we characterize the cooperative behaviors in the Nash bargaining cooperative game-theoretic framework, where we maximize the EE performance with a certain sacrifice of SE performance. We first analyze the relationship between the EE and the SE, based on which we formulate the Nash-product EE maximization problem.We achieve the closed-form sub-optimal SE equilibria to maximize the EE performance with and without the minimum SE constraints. We finally propose a CE2MG algorithm, and numerical results verify the improved EE and fairness of the presented CE2MG algorithm compared with the non-cooperative scheme.

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©2017 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.