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Volume 16
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10.3390/s16071090
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Article

Distributed Task Offloading in Heterogeneous Vehicular Crowd Sensing

by
Yazhi Liu
1,*,
Wendong Wang
2,
Yuekun Ma
1,
Zhigang Yang
1 and
Fuxing Yu
1
1
College of Information Engineering, North China University of Science and Technology, Tangshan 063009, China
2
State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
*
Author to whom correspondence should be addressed.
Sensors 2016, 16(7), 1090; https://doi.org/10.3390/s16071090
Submission received: 7 March 2016 / Revised: 8 July 2016 / Accepted: 11 July 2016 / Published: 14 July 2016
(This article belongs to the Section Sensor Networks)
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Abstract

The ability of road vehicles to efficiently execute different sensing tasks varies because of the heterogeneity in their sensing ability and trajectories. Therefore, the data collection sensing task, which requires tempo-spatial sensing data, becomes a serious problem in vehicular sensing systems, particularly those with limited sensing capabilities. A utility-based sensing task decomposition and offloading algorithm is proposed in this paper. The utility function for a task executed by a certain vehicle is built according to the mobility traces and sensing interfaces of the vehicle, as well as the sensing data type and tempo-spatial coverage requirements of the sensing task. Then, the sensing tasks are decomposed and offloaded to neighboring vehicles according to the utilities of the neighboring vehicles to the decomposed sensing tasks. Real trace-driven simulation shows that the proposed task offloading is able to collect much more comprehensive and uniformly distributed sensing data than other algorithms.
Keywords: vehicular crowd sensing; mobile crowd sensing; task offloading vehicular crowd sensing; mobile crowd sensing; task offloading

Share and Cite

MDPI and ACS Style

Liu, Y.; Wang, W.; Ma, Y.; Yang, Z.; Yu, F. Distributed Task Offloading in Heterogeneous Vehicular Crowd Sensing. Sensors 2016, 16, 1090. https://doi.org/10.3390/s16071090

AMA Style

Liu Y, Wang W, Ma Y, Yang Z, Yu F. Distributed Task Offloading in Heterogeneous Vehicular Crowd Sensing. Sensors. 2016; 16(7):1090. https://doi.org/10.3390/s16071090

Chicago/Turabian Style

Liu, Yazhi, Wendong Wang, Yuekun Ma, Zhigang Yang, and Fuxing Yu. 2016. "Distributed Task Offloading in Heterogeneous Vehicular Crowd Sensing" Sensors 16, no. 7: 1090. https://doi.org/10.3390/s16071090

APA Style

Liu, Y., Wang, W., Ma, Y., Yang, Z., & Yu, F. (2016). Distributed Task Offloading in Heterogeneous Vehicular Crowd Sensing. Sensors, 16(7), 1090. https://doi.org/10.3390/s16071090

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