Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation

Hoon Lee; Sang Rim Lee; Kyoung Jae Lee; Han Bae Kong; Inkyu Lee

doi:10.1109/VTCFall.2016.7881589

Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation

Hoon Lee, Sang Rim Lee, Kyoung Jae Lee, Han Bae Kong, Inkyu Lee

School of Electrical Engineering

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

Abstract

In simultaneous wireless information and power transfer (SWIPT) systems, dedicated energy signals only convey wireless energy, but not information. For this reason, the energycarring signals in the SWIPT can be pre-determined in advance and is shared among communication nodes. By exploiting this nature, this paper designs the optimal transmit beamforming vectors for the multiple-input single-output SWIPT interference channel with signal cooperation (IFC-SC), where the energycarrying signal waveforms are known to transmitters and receivers. Specifically, we aim to identify the optimal tradeoff between the information rate and the harvested energy. To this end, an information rate maximization problem is formulated under minimum required harvested energy constraint, which is non-convex in general. To solve the problem, a new parameterization technique is introduced, and we can decouple the original problem into two subproblems, which yields closed-form beamforming solutions by addressing the line search method for the parameter. Simulation results confirms that the proposed optimal IFC-SC beamforming vectors outperform conventional SWIPT IFC systems.

Original language	English
Title of host publication	2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509017010
DOIs	https://doi.org/10.1109/VTCFall.2016.7881589
Publication status	Published - 2016 Jul 2
Event	84th IEEE Vehicular Technology Conference, VTC Fall 2016 - Montreal, Canada Duration: 2016 Sept 18 → 2016 Sept 21

Publication series

Name	IEEE Vehicular Technology Conference
Volume	0
ISSN (Print)	1550-2252

Other

Other	84th IEEE Vehicular Technology Conference, VTC Fall 2016
Country/Territory	Canada
City	Montreal
Period	16/9/18 → 16/9/21

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) funded by the Korea Government (MSIP) under Grant 2014R1A2A1A10049769. K.-J. Lee's work was partially supported through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2013R1A1A1060503 and NRF-2014K1A3A1A09063284).

Publisher Copyright:
© 2016 IEEE.

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/VTCFall.2016.7881589

Cite this

Lee, H., Lee, S. R., Lee, K. J., Kong, H. B., & Lee, I. (2016). Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation. In 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings Article 7881589 (IEEE Vehicular Technology Conference; Vol. 0). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2016.7881589

Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation. / Lee, Hoon; Lee, Sang Rim; Lee, Kyoung Jae et al.
2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016. 7881589 (IEEE Vehicular Technology Conference; Vol. 0).

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

Lee, H, Lee, SR, Lee, KJ, Kong, HB & Lee, I 2016, Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation. in 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings., 7881589, IEEE Vehicular Technology Conference, vol. 0, Institute of Electrical and Electronics Engineers Inc., 84th IEEE Vehicular Technology Conference, VTC Fall 2016, Montreal, Canada, 16/9/18. https://doi.org/10.1109/VTCFall.2016.7881589

Lee H, Lee SR, Lee KJ, Kong HB, Lee I. Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation. In 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2016. 7881589. (IEEE Vehicular Technology Conference). doi: 10.1109/VTCFall.2016.7881589

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abstract = "In simultaneous wireless information and power transfer (SWIPT) systems, dedicated energy signals only convey wireless energy, but not information. For this reason, the energycarring signals in the SWIPT can be pre-determined in advance and is shared among communication nodes. By exploiting this nature, this paper designs the optimal transmit beamforming vectors for the multiple-input single-output SWIPT interference channel with signal cooperation (IFC-SC), where the energycarrying signal waveforms are known to transmitters and receivers. Specifically, we aim to identify the optimal tradeoff between the information rate and the harvested energy. To this end, an information rate maximization problem is formulated under minimum required harvested energy constraint, which is non-convex in general. To solve the problem, a new parameterization technique is introduced, and we can decouple the original problem into two subproblems, which yields closed-form beamforming solutions by addressing the line search method for the parameter. Simulation results confirms that the proposed optimal IFC-SC beamforming vectors outperform conventional SWIPT IFC systems.",

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N2 - In simultaneous wireless information and power transfer (SWIPT) systems, dedicated energy signals only convey wireless energy, but not information. For this reason, the energycarring signals in the SWIPT can be pre-determined in advance and is shared among communication nodes. By exploiting this nature, this paper designs the optimal transmit beamforming vectors for the multiple-input single-output SWIPT interference channel with signal cooperation (IFC-SC), where the energycarrying signal waveforms are known to transmitters and receivers. Specifically, we aim to identify the optimal tradeoff between the information rate and the harvested energy. To this end, an information rate maximization problem is formulated under minimum required harvested energy constraint, which is non-convex in general. To solve the problem, a new parameterization technique is introduced, and we can decouple the original problem into two subproblems, which yields closed-form beamforming solutions by addressing the line search method for the parameter. Simulation results confirms that the proposed optimal IFC-SC beamforming vectors outperform conventional SWIPT IFC systems.

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Transmit beamforming optimization for wireless information and power transfer in MISO interference channels with signal cooperation

Abstract

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