Optimal power allocation to increase secure energy efficiency in a two-way relay network

Rugui Yao; Tamer Mekkawy; Fei Xu

doi:10.1109/VTCFall.2017.8288198

Optimal power allocation to increase secure energy efficiency in a two-way relay network

Rugui Yao
, Tamer Mekkawy
, Fei Xu

School of Electronics and Information

Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

In this paper, a cooperative secure transmission in a two-way relay network is investigated. Due to untrusted relay, physical layer security is adopted to secure the user's messages from relay interruption. Considering the secure sum rate and power consumption for the network, we formulate an optimal power allocation (OPA) problem for the transmission to maximize the secure energy efficiency (EE). To lower the complexity of the optimization solution, an approximation based on Taylor expansion is introduced to achieve near optimal secure EE with acceptable errors. Finally, the numerical results are presented to validate the correctness and efficiency of the proposed algorithm and solution. The relative error of secure EE is not greater than 6% in the worst case, and about 1% in most cases, which is acceptable.

Original language	English
Title of host publication	2017 IEEE 86th Vehicular Technology Conference, VTC Fall 2017 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-5
Number of pages	5
ISBN (Electronic)	9781509059355
DOIs	https://doi.org/10.1109/VTCFall.2017.8288198
State	Published - 2 Jul 2017
Event	86th IEEE Vehicular Technology Conference, VTC Fall 2017 - Toronto, Canada Duration: 24 Sep 2017 → 27 Sep 2017

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2017-September
ISSN (Print)	1550-2252

Conference

Conference	86th IEEE Vehicular Technology Conference, VTC Fall 2017
Country/Territory	Canada
City	Toronto
Period	24/09/17 → 27/09/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Optimal power allocation
Secure energy efficiency
Two-way relay network
Untrusted relay

Access to Document

10.1109/VTCFall.2017.8288198

Cite this

Yao, R., Mekkawy, T., & Xu, F. (2017). Optimal power allocation to increase secure energy efficiency in a two-way relay network. In 2017 IEEE 86th Vehicular Technology Conference, VTC Fall 2017 - Proceedings (pp. 1-5). (IEEE Vehicular Technology Conference; Vol. 2017-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2017.8288198

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title = "Optimal power allocation to increase secure energy efficiency in a two-way relay network",

abstract = "In this paper, a cooperative secure transmission in a two-way relay network is investigated. Due to untrusted relay, physical layer security is adopted to secure the user's messages from relay interruption. Considering the secure sum rate and power consumption for the network, we formulate an optimal power allocation (OPA) problem for the transmission to maximize the secure energy efficiency (EE). To lower the complexity of the optimization solution, an approximation based on Taylor expansion is introduced to achieve near optimal secure EE with acceptable errors. Finally, the numerical results are presented to validate the correctness and efficiency of the proposed algorithm and solution. The relative error of secure EE is not greater than 6\% in the worst case, and about 1\% in most cases, which is acceptable.",

keywords = "Optimal power allocation, Secure energy efficiency, Two-way relay network, Untrusted relay",

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Yao, R, Mekkawy, T & Xu, F 2017, Optimal power allocation to increase secure energy efficiency in a two-way relay network. in 2017 IEEE 86th Vehicular Technology Conference, VTC Fall 2017 - Proceedings. IEEE Vehicular Technology Conference, vol. 2017-September, Institute of Electrical and Electronics Engineers Inc., pp. 1-5, 86th IEEE Vehicular Technology Conference, VTC Fall 2017, Toronto, Canada, 24/09/17. https://doi.org/10.1109/VTCFall.2017.8288198

Optimal power allocation to increase secure energy efficiency in a two-way relay network. / Yao, Rugui; Mekkawy, Tamer; Xu, Fei.
2017 IEEE 86th Vehicular Technology Conference, VTC Fall 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-5 (IEEE Vehicular Technology Conference; Vol. 2017-September).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - In this paper, a cooperative secure transmission in a two-way relay network is investigated. Due to untrusted relay, physical layer security is adopted to secure the user's messages from relay interruption. Considering the secure sum rate and power consumption for the network, we formulate an optimal power allocation (OPA) problem for the transmission to maximize the secure energy efficiency (EE). To lower the complexity of the optimization solution, an approximation based on Taylor expansion is introduced to achieve near optimal secure EE with acceptable errors. Finally, the numerical results are presented to validate the correctness and efficiency of the proposed algorithm and solution. The relative error of secure EE is not greater than 6% in the worst case, and about 1% in most cases, which is acceptable.

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KW - Secure energy efficiency

KW - Two-way relay network

KW - Untrusted relay

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Optimal power allocation to increase secure energy efficiency in a two-way relay network

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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