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author:

Lin, Zhijian (Lin, Zhijian.) [1] | Chen, Xiaopei (Chen, Xiaopei.) [2] | He, Xiaofan (He, Xiaofan.) [3] | Tian, Daxin (Tian, Daxin.) [4] | Zhang, Qingsong (Zhang, Qingsong.) [5] | Chen, Pingping (Chen, Pingping.) [6]

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Abstract:

Vehicular fog computing (VFC) that supports inter-vehicular task offloading emerges as a promising complement to handle the explosive growth of computation-intensive tasks in Intelligent Transportation Systems (ITS). Nonetheless, as the fog access points (F-APs) in crowed areas are often overloaded, the conventional single F-AP VFC may become incompetent and energy-inefficient. To tackle the issue, a novel scheme of non-orthogonal multiple access (NOMA)-enabled multi-F-AP VFC with partial offloading is proposed in this work. However, the corresponding energy minimization turns out to be a highly non-trivial non-linear mixed-integer programming problem. To this end, the optimal power allocation is derived by exploiting monotonicity while good task splitting ratio and user association are found through successive convex approximation (SCA)-based interior-point method and game theoretic approach, respectively. Extensive simulations based on MATLAB show that, in the considered scenarios, the proposed scheme can fulfill a more balanced offloading and better exploit the available computing resources, thereby leading to an approximately 30% energy consumption reduction compared to the baselines. © 2000-2011 IEEE.

Keyword:

Computation offloading Energy efficiency Energy utilization Fog Fog computing Game theory Green computing Integer programming Intelligent systems Job analysis MATLAB

Community:

  • [ 1 ] [Lin, Zhijian]Fuzhou University, College of Physics and Information Engineering, Fuzhou; 350108, China
  • [ 2 ] [Chen, Xiaopei]South China University of Technology, School of Future Technology, Guangzhou; 511442, China
  • [ 3 ] [Chen, Xiaopei]Peng Cheng Laboratory, Shenzhen; 518000, China
  • [ 4 ] [He, Xiaofan]Wuhan University, School of Electronic Information, Wuhan; 430000, China
  • [ 5 ] [Tian, Daxin]Beihang University, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Safety Control, School of Transportation Science and Engineering, Beijing; 100191, China
  • [ 6 ] [Zhang, Qingsong]Fuzhou University, College of Physics and Information Engineering, Fuzhou; 350108, China
  • [ 7 ] [Chen, Pingping]Fuzhou University, College of Physics and Information Engineering, Fuzhou; 350108, China

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Source :

IEEE Transactions on Intelligent Transportation Systems

ISSN: 1524-9050

Year: 2024

Issue: 7

Volume: 25

Page: 7223-7236

7 . 9 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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