Yu, Wenjuan and Musavian, Leila and Ni, Qiang (2015) Multi-carrier link-layer energy efficiency and effective capacity tradeoff. In: 2015 ICC - 2015 IEEE International Conference on Communications Workshops (ICC), 2015-06-08 - 2015-06-12.
Yu, Wenjuan and Musavian, Leila and Ni, Qiang (2015) Multi-carrier link-layer energy efficiency and effective capacity tradeoff. In: 2015 ICC - 2015 IEEE International Conference on Communications Workshops (ICC), 2015-06-08 - 2015-06-12.
Yu, Wenjuan and Musavian, Leila and Ni, Qiang (2015) Multi-carrier link-layer energy efficiency and effective capacity tradeoff. In: 2015 ICC - 2015 IEEE International Conference on Communications Workshops (ICC), 2015-06-08 - 2015-06-12.
Abstract
A joint energy and spectral efficient power allocation strategy for a point-to-point multi-carrier link, subject to a delay-outage probability constraint, is proposed in this paper. Since the two objectives, namely, link-layer energy efficiency (EE) and effective capacity (EC), conflict with each other, the tradeoff problem falls into the scope of multi-objective optimization problems (MOP). With the ε-constraint approach, the MOP is converted into a single-objective optimization problem (SOP) by maximizing the multi-carrier EC, subject to an EE constraint. Then, by introducing an adjustable performance indicator, EE-loss-rate (αEE), into the EE constraint limit, the tradeoff level is flexibly controlled. Finally, we prove that the proposed tradeoff formulation is a concave maximization problem and the optimum power allocation strategy can be derived using Lagrangian method. Analytical results indicate that the proposed power allocation has a similar structure to the one for EE-maximization problem over a frequency-selective fading channel, but with a different cut-off threshold.
Item Type: | Conference or Workshop Item (Paper) |
---|---|
Additional Information: | Published proceedings: 2015 IEEE International Conference on Communication Workshop, ICCW 2015 |
Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 02 Feb 2017 15:45 |
Last Modified: | 05 Jun 2024 02:40 |
URI: | http://repository.essex.ac.uk/id/eprint/18943 |
Available files
Filename: 2_3_.pdf