Relay selection in two-way full-duplex energy-harvesting relay networks

Dexin Wang; Rongqing Zhang; Xiang Cheng; Liuqing Yang

doi:10.1109/GLOCOM.2016.7842211

Relay selection in two-way full-duplex energy-harvesting relay networks

Dexin Wang, Rongqing Zhang, Xiang Cheng, Liuqing Yang

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

18 Scopus citations

Abstract

In this paper, we investigate the optimization of the power splitting factor and the relay selection problem in two-way full-duplex (FD) relay networks, where the relays are wirelessly powered by harvesting a portion of the received signal power from the sources. To the best of the authors' knowledge, this is the first time that the two-way FD relays with simultaneous wireless and information transfer (SWIPT) capabilities are investigated. For each relay, we prove the quasi- convexity of the power splitting (PS) factor optimization and obtain the optimal PS factor in terms of the outage probability by linear search. We propose two relay selection schemes that minimize the outage probability and maximize the sum capacity respectively. The performance improvement over the random selection scheme and the all- participate scheme is demonstrated by simulations.

Original language	English (US)
Title of host publication	2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509013289
DOIs	https://doi.org/10.1109/GLOCOM.2016.7842211
State	Published - 2016
Externally published	Yes
Event	59th IEEE Global Communications Conference, GLOBECOM 2016 - Washington, United States Duration: Dec 4 2016 → Dec 8 2016

Publication series

Name	2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings

Other

Other	59th IEEE Global Communications Conference, GLOBECOM 2016
Country/Territory	United States
City	Washington
Period	12/4/16 → 12/8/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

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10.1109/GLOCOM.2016.7842211

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Wang, D., Zhang, R., Cheng, X., & Yang, L. (2016). Relay selection in two-way full-duplex energy-harvesting relay networks. In 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings Article 7842211 (2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOM.2016.7842211

Relay selection in two-way full-duplex energy-harvesting relay networks. / Wang, Dexin; Zhang, Rongqing; Cheng, Xiang et al.
2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016. 7842211 (2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings).

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

Wang, D, Zhang, R, Cheng, X & Yang, L 2016, Relay selection in two-way full-duplex energy-harvesting relay networks. in 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings., 7842211, 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 59th IEEE Global Communications Conference, GLOBECOM 2016, Washington, United States, 12/4/16. https://doi.org/10.1109/GLOCOM.2016.7842211

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AB - In this paper, we investigate the optimization of the power splitting factor and the relay selection problem in two-way full-duplex (FD) relay networks, where the relays are wirelessly powered by harvesting a portion of the received signal power from the sources. To the best of the authors' knowledge, this is the first time that the two-way FD relays with simultaneous wireless and information transfer (SWIPT) capabilities are investigated. For each relay, we prove the quasi- convexity of the power splitting (PS) factor optimization and obtain the optimal PS factor in terms of the outage probability by linear search. We propose two relay selection schemes that minimize the outage probability and maximize the sum capacity respectively. The performance improvement over the random selection scheme and the all- participate scheme is demonstrated by simulations.

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Relay selection in two-way full-duplex energy-harvesting relay networks

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