Robustly Safe Charging for Wireless Power Transfer

Raipeng Dai; Yang Zhao; Guihai Chen; Wanchun Dou; Chen Tian; Xiaobing Wu; Tian He

doi:10.1109/INFOCOM.2018.8485951

Robustly Safe Charging for Wireless Power Transfer

Raipeng Dai, Yang Zhao, Guihai Chen, Wanchun Dou, Chen Tian, Xiaobing Wu, Tian He

Center for Transportation Studies

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

31 Scopus citations

Abstract

One critical issue for wireless power transfer is to avoid human health impairments caused by electromagnetic radiation (EMR) exposure. The existing studies mainly focus on scheduling wireless chargers so that (expected) EMR at any point in the area doesn't exceed a threshold R-{t}. Nevertheless, they overlook the EMR jitter that leads to exceeding of R_t even if the expected EMR is no more than R-{t}. This paper studies the fundamental problem of RObustly SafE charging for wireless power transfer (ROSE), that is, scheduling the power of chargers so that the charging utility for all rechargeable devices is maximized while the probability that EMR anywhere doesn't exceed R-{t} is no less than a given confidence. We first build our empirical probabilistic charging model and EMR model. Then, we present EMR approximation and area discretization techniques to formulate ROSE into a Second-Order Cone Program, and the first redundant second-order cone constraints reduction algorithm to reduce the computational cost, and therefore obtain a (1-epsilon)-approximation centralized algorithm. Further, we propose a (1-epsilon)-approximation fully distributed algorithm scalable with network size for ROSE. Simulations and field experiments show that our algorithms can outperform comparison algorithms by 480.19%.

Original language	English (US)
Title of host publication	INFOCOM 2018 - IEEE Conference on Computer Communications
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	378-386
Number of pages	9
ISBN (Electronic)	9781538641286
DOIs	https://doi.org/10.1109/INFOCOM.2018.8485951
State	Published - Oct 8 2018
Event	2018 IEEE Conference on Computer Communications, INFOCOM 2018 - Honolulu, United States Duration: Apr 15 2018 → Apr 19 2018

Publication series

Name	Proceedings - IEEE INFOCOM
Volume	2018-April
ISSN (Print)	0743-166X

Other

Other	2018 IEEE Conference on Computer Communications, INFOCOM 2018
Country/Territory	United States
City	Honolulu
Period	4/15/18 → 4/19/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

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Robustly Safe Charging for Wireless Power Transfer. / Dai, Raipeng; Zhao, Yang; Chen, Guihai et al.
INFOCOM 2018 - IEEE Conference on Computer Communications. Institute of Electrical and Electronics Engineers Inc., 2018. p. 378-386 8485951 (Proceedings - IEEE INFOCOM; Vol. 2018-April).

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

Dai, R, Zhao, Y, Chen, G, Dou, W, Tian, C, Wu, X & He, T 2018, Robustly Safe Charging for Wireless Power Transfer. in INFOCOM 2018 - IEEE Conference on Computer Communications., 8485951, Proceedings - IEEE INFOCOM, vol. 2018-April, Institute of Electrical and Electronics Engineers Inc., pp. 378-386, 2018 IEEE Conference on Computer Communications, INFOCOM 2018, Honolulu, United States, 4/15/18. https://doi.org/10.1109/INFOCOM.2018.8485951

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Robustly Safe Charging for Wireless Power Transfer

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