Robust beamforming for SWIPT systems with non-linear energy harvesting model

Elena Boshkovska; Alexander Koelpin; Derrick Wing Kwan Ng; Nikola Zlatanov; Robert Schober

doi:10.1109/SPAWC.2016.7536860

Robust beamforming for SWIPT systems with non-linear energy harvesting model

Elena Boshkovska
, Alexander Koelpin
, Derrick Wing Kwan Ng
, Nikola Zlatanov
, Robert Schober

Electrical and Computer Systems Engineering

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

34 Citations (Scopus)

Abstract

This paper investigates resource allocation for simultaneous wireless information and power transfer (SWIPT) downlink systems based on a non-linear energy harvesting model. The resource allocation algorithm design is formulated as a non-convex optimization problem for the maximization of the total harvested power. The proposed problem formulation not only takes into account imperfect channel state information (CSI) but also guarantees the quality-of-service (QoS) of information transfer. A novel iterative algorithm is proposed to obtain the globally optimal solution of the considered non-convex optimization problem. In each iteration, a rank-constrained semidefinite program (SDP) is solved optimally by SDP relaxation. Simulation results demonstrate the significant gains in harvested power and the robustness against CSI imperfection for the proposed optimal resource allocation, compared to a baseline scheme designed for perfect CSI and the conventional linear energy harvesting model.

Original language	English
Title of host publication	SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications
Subtitle of host publication	July 3rd - July 6th, Edinburgh, UK
Editors	Tharm Ratnarajah, Constantinos Papadias
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Number of pages	5
ISBN (Electronic)	9781509017492
ISBN (Print)	9781509017508
DOIs	https://doi.org/10.1109/SPAWC.2016.7536860
Publication status	Published - 9 Aug 2016
Event	IEEE International Workshop on Signal Processing Advances in Wireless Communications 2016 - Edinburgh, United Kingdom Duration: 3 Jul 2016 → 6 Jul 2016 Conference number: 17th https://ieeexplore.ieee.org/xpl/conhome/7530389/proceeding (Proceedings)

Conference

Conference	IEEE International Workshop on Signal Processing Advances in Wireless Communications 2016
Abbreviated title	SPAWC 2016
Country/Territory	United Kingdom
City	Edinburgh
Period	3/07/16 → 6/07/16
Internet address	https://ieeexplore.ieee.org/xpl/conhome/7530389/proceeding (Proceedings)

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10.1109/SPAWC.2016.7536860

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Boshkovska, E., Koelpin, A., Ng, D. W. K., Zlatanov, N., & Schober, R. (2016). Robust beamforming for SWIPT systems with non-linear energy harvesting model. In T. Ratnarajah, & C. Papadias (Eds.), SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: July 3rd - July 6th, Edinburgh, UK Article 7536860 IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/SPAWC.2016.7536860

Boshkovska, Elena ; Koelpin, Alexander ; Ng, Derrick Wing Kwan et al. / Robust beamforming for SWIPT systems with non-linear energy harvesting model. SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: July 3rd - July 6th, Edinburgh, UK. editor / Tharm Ratnarajah ; Constantinos Papadias. IEEE, Institute of Electrical and Electronics Engineers, 2016.

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title = "Robust beamforming for SWIPT systems with non-linear energy harvesting model",

abstract = "This paper investigates resource allocation for simultaneous wireless information and power transfer (SWIPT) downlink systems based on a non-linear energy harvesting model. The resource allocation algorithm design is formulated as a non-convex optimization problem for the maximization of the total harvested power. The proposed problem formulation not only takes into account imperfect channel state information (CSI) but also guarantees the quality-of-service (QoS) of information transfer. A novel iterative algorithm is proposed to obtain the globally optimal solution of the considered non-convex optimization problem. In each iteration, a rank-constrained semidefinite program (SDP) is solved optimally by SDP relaxation. Simulation results demonstrate the significant gains in harvested power and the robustness against CSI imperfection for the proposed optimal resource allocation, compared to a baseline scheme designed for perfect CSI and the conventional linear energy harvesting model.",

author = "Elena Boshkovska and Alexander Koelpin and Ng, \{Derrick Wing Kwan\} and Nikola Zlatanov and Robert Schober",

year = "2016",

month = aug,

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doi = "10.1109/SPAWC.2016.7536860",

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editor = "Tharm Ratnarajah and Constantinos Papadias",

booktitle = "SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

address = "United States of America",

note = "IEEE International Workshop on Signal Processing Advances in Wireless Communications 2016, SPAWC 2016 ; Conference date: 03-07-2016 Through 06-07-2016",

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Boshkovska, E, Koelpin, A, Ng, DWK, Zlatanov, N & Schober, R 2016, Robust beamforming for SWIPT systems with non-linear energy harvesting model. in T Ratnarajah & C Papadias (eds), SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: July 3rd - July 6th, Edinburgh, UK., 7536860, IEEE, Institute of Electrical and Electronics Engineers, IEEE International Workshop on Signal Processing Advances in Wireless Communications 2016, Edinburgh, United Kingdom, 3/07/16. https://doi.org/10.1109/SPAWC.2016.7536860

Robust beamforming for SWIPT systems with non-linear energy harvesting model. / Boshkovska, Elena; Koelpin, Alexander; Ng, Derrick Wing Kwan et al.
SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: July 3rd - July 6th, Edinburgh, UK. ed. / Tharm Ratnarajah; Constantinos Papadias. IEEE, Institute of Electrical and Electronics Engineers, 2016. 7536860.

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

TY - GEN

T1 - Robust beamforming for SWIPT systems with non-linear energy harvesting model

AU - Boshkovska, Elena

AU - Koelpin, Alexander

AU - Ng, Derrick Wing Kwan

AU - Zlatanov, Nikola

AU - Schober, Robert

N1 - Conference code: 17th

PY - 2016/8/9

Y1 - 2016/8/9

N2 - This paper investigates resource allocation for simultaneous wireless information and power transfer (SWIPT) downlink systems based on a non-linear energy harvesting model. The resource allocation algorithm design is formulated as a non-convex optimization problem for the maximization of the total harvested power. The proposed problem formulation not only takes into account imperfect channel state information (CSI) but also guarantees the quality-of-service (QoS) of information transfer. A novel iterative algorithm is proposed to obtain the globally optimal solution of the considered non-convex optimization problem. In each iteration, a rank-constrained semidefinite program (SDP) is solved optimally by SDP relaxation. Simulation results demonstrate the significant gains in harvested power and the robustness against CSI imperfection for the proposed optimal resource allocation, compared to a baseline scheme designed for perfect CSI and the conventional linear energy harvesting model.

AB - This paper investigates resource allocation for simultaneous wireless information and power transfer (SWIPT) downlink systems based on a non-linear energy harvesting model. The resource allocation algorithm design is formulated as a non-convex optimization problem for the maximization of the total harvested power. The proposed problem formulation not only takes into account imperfect channel state information (CSI) but also guarantees the quality-of-service (QoS) of information transfer. A novel iterative algorithm is proposed to obtain the globally optimal solution of the considered non-convex optimization problem. In each iteration, a rank-constrained semidefinite program (SDP) is solved optimally by SDP relaxation. Simulation results demonstrate the significant gains in harvested power and the robustness against CSI imperfection for the proposed optimal resource allocation, compared to a baseline scheme designed for perfect CSI and the conventional linear energy harvesting model.

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BT - SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications

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T2 - IEEE International Workshop on Signal Processing Advances in Wireless Communications 2016

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Boshkovska E, Koelpin A, Ng DWK, Zlatanov N, Schober R. Robust beamforming for SWIPT systems with non-linear energy harvesting model. In Ratnarajah T, Papadias C, editors, SPAWC 2016 - 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications: July 3rd - July 6th, Edinburgh, UK. IEEE, Institute of Electrical and Electronics Engineers. 2016. 7536860 doi: 10.1109/SPAWC.2016.7536860

Robust beamforming for SWIPT systems with non-linear energy harvesting model

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