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author:

Lin, Z. (Lin, Z..) [1] | Chen, X. (Chen, X..) [2] | He, X. (He, X..) [3] | Tian, D. (Tian, D..) [4] | Zhang, Q. (Zhang, Q..) [5] | Chen, P. (Chen, P..) [6]

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Scopus

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. IEEE

Keyword:

Cloud computing Edge computing energy consumption Energy consumption NOMA Non-orthogonal multiple access (NOMA) Optimization partial offloading Resource management Task analysis vehicular fog computing (VFC)

Community:

  • [ 1 ] [Lin Z.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
  • [ 2 ] [Chen X.]School of Future Technology, South China University of Technology, Guangzhou, China
  • [ 3 ] [He X.]School of Electronic Information, Wuhan University, Wuhan, China
  • [ 4 ] [Tian D.]Beijing Key Laboratory for Cooperative Vehicle Infrastructure Systems and Safety Control, School of Transportation Science and Engineering, Beijing Advanced Innovation Center for Big Data and Brain Computing, Beihang University, Beijing, China
  • [ 5 ] [Zhang Q.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China
  • [ 6 ] [Chen P.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, China

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Source :

IEEE Transactions on Intelligent Transportation Systems

ISSN: 1524-9050

Year: 2024

Issue: 7

Volume: 25

Page: 1-14

7 . 9 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 1

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