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Tradeoff analysis and joint optimization of link-layer energy efficiency and effective capacity toward green communications

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Tradeoff analysis and joint optimization of link-layer energy efficiency and effective capacity toward green communications. / Yu, Wenjuan; Musavian, Leila; Ni, Qiang.

In: IEEE Transactions on Wireless Communications, Vol. 15, No. 5, 05.2016, p. 3339-3353.

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Yu W, Musavian L, Ni Q. Tradeoff analysis and joint optimization of link-layer energy efficiency and effective capacity toward green communications. IEEE Transactions on Wireless Communications. 2016 May;15(5):3339-3353. Epub 2016 Jan 21. doi: 10.1109/TWC.2016.2520472

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@article{538566c8c9e14f12a0566973b67744c4,
title = "Tradeoff analysis and joint optimization of link-layer energy efficiency and effective capacity toward green communications",
abstract = "A joint optimization problem of link-layer energy efficiency (EE) and effective capacity (EC) in a Nakagami- m fading channel under a delay-outage probability constraint and an average transmit power constraint is considered and investigated in this paper. Firstly, a normalized multi-objective optimization problem (MOP) is formulated and transformed into a single-objective optimization problem (SOP), by applying the weighted sum method. The formulated SOP is then proved to be continuously differentiable and strictly quasiconvex in the optimum average input power, which turns out to be a cup shape curve. Further, the weighted quasiconvex tradeoff problem is solved by first using Charnes-Cooper transformation and then applying Karush-Kuhn-Tucker (KKT) conditions. The proposed optimal power allocation, which includes the optimal strategy for the link-layer EE-maximization problem and the ECmaximization problem as extreme cases, is proved to be sufficient for the Pareto optimal set of the original EE-EC MOP. Moreover, we prove that the optimum average power level monotonically decreases with the importance weight, but strictly increases with the normalization factor, the circuit power and the power amplifier efficiency. Simulation results confirm the analytical derivations and further show the effects of fading severeness and transmission power limit on the tradeoff performance.",
author = "Wenjuan Yu and Leila Musavian and Qiang Ni",
note = "{\textcopyright}2016 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. ",
year = "2016",
month = may,
doi = "10.1109/TWC.2016.2520472",
language = "English",
volume = "15",
pages = "3339--3353",
journal = "IEEE Transactions on Wireless Communications",
issn = "1536-1276",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "5",

}

RIS

TY - JOUR

T1 - Tradeoff analysis and joint optimization of link-layer energy efficiency and effective capacity toward green communications

AU - Yu, Wenjuan

AU - Musavian, Leila

AU - Ni, Qiang

N1 - ©2016 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.

PY - 2016/5

Y1 - 2016/5

N2 - A joint optimization problem of link-layer energy efficiency (EE) and effective capacity (EC) in a Nakagami- m fading channel under a delay-outage probability constraint and an average transmit power constraint is considered and investigated in this paper. Firstly, a normalized multi-objective optimization problem (MOP) is formulated and transformed into a single-objective optimization problem (SOP), by applying the weighted sum method. The formulated SOP is then proved to be continuously differentiable and strictly quasiconvex in the optimum average input power, which turns out to be a cup shape curve. Further, the weighted quasiconvex tradeoff problem is solved by first using Charnes-Cooper transformation and then applying Karush-Kuhn-Tucker (KKT) conditions. The proposed optimal power allocation, which includes the optimal strategy for the link-layer EE-maximization problem and the ECmaximization problem as extreme cases, is proved to be sufficient for the Pareto optimal set of the original EE-EC MOP. Moreover, we prove that the optimum average power level monotonically decreases with the importance weight, but strictly increases with the normalization factor, the circuit power and the power amplifier efficiency. Simulation results confirm the analytical derivations and further show the effects of fading severeness and transmission power limit on the tradeoff performance.

AB - A joint optimization problem of link-layer energy efficiency (EE) and effective capacity (EC) in a Nakagami- m fading channel under a delay-outage probability constraint and an average transmit power constraint is considered and investigated in this paper. Firstly, a normalized multi-objective optimization problem (MOP) is formulated and transformed into a single-objective optimization problem (SOP), by applying the weighted sum method. The formulated SOP is then proved to be continuously differentiable and strictly quasiconvex in the optimum average input power, which turns out to be a cup shape curve. Further, the weighted quasiconvex tradeoff problem is solved by first using Charnes-Cooper transformation and then applying Karush-Kuhn-Tucker (KKT) conditions. The proposed optimal power allocation, which includes the optimal strategy for the link-layer EE-maximization problem and the ECmaximization problem as extreme cases, is proved to be sufficient for the Pareto optimal set of the original EE-EC MOP. Moreover, we prove that the optimum average power level monotonically decreases with the importance weight, but strictly increases with the normalization factor, the circuit power and the power amplifier efficiency. Simulation results confirm the analytical derivations and further show the effects of fading severeness and transmission power limit on the tradeoff performance.

U2 - 10.1109/TWC.2016.2520472

DO - 10.1109/TWC.2016.2520472

M3 - Journal article

VL - 15

SP - 3339

EP - 3353

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

SN - 1536-1276

IS - 5

ER -