TIIS (한국인터넷정보학회)
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| 한글제목(Korean Title) |
A QEE-Oriented Fair Power Allocation for Two-tier Heterogeneous Networks |
| 영문제목(English Title) |
A QEE-Oriented Fair Power Allocation for Two-tier Heterogeneous Networks |
| 저자(Author) |
Shiyu Ji
Liangrui Tang
Yanhua He
Shuxian Li
Shimo Du
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| 원문수록처(Citation) |
VOL 12 NO. 05 PP. 1912 ~ 1931 (2018. 05) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
In future wireless network, user experience and energy efficiency will play more and more important roles in the communication systems compared to their roles at present. Quality of experience (QoE) and Energy Efficiency (EE) become the widely used metrics. In this paper, we study a combinatorial problem of QoE and EE and investigate a fair power allocation in heterogeneous networks. We first design a new metric, QoE-aware EE (QEE) to reflect the relationship of QoE and energy. Then, the concept of Utopia QEE is introduced, which is defined as the achievable maximum QEE in ideal conditions, for each user. Finally, we transform the power allocation process to an optimization of ratio of QEE and Utopia QEE and use invasive weed optimization (IWO) algorithm to solve the optimization problem. Numerical simulation results indicate that the proposed algorithm can get converged and efficiently improve the system energy efficiency and the QoE for each user.
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| 키워드(Keyword) |
QEE
power allocation
two-tier heterogeneous networks
IWO
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| 파일첨부 |
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