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author:

Lin, Zhijian (Lin, Zhijian.) [1] (Scholars:林志坚) | 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] (Scholars:陈平平)

Indexed by:

EI Scopus SCIE

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.

Keyword:

energy consumption Non-orthogonal multiple access (NOMA) partial offloading vehicular fog computing (VFC)

Community:

  • [ 1 ] [Lin, Zhijian]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Zhang, Qingsong]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Chen, Pingping]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Chen, Xiaopei]South China Univ Technol, Sch Future Technol, Guangzhou 511442, Peoples R China
  • [ 5 ] [Chen, Xiaopei]Peng Cheng Lab, Shenzhen 518000, Peoples R China
  • [ 6 ] [He, Xiaofan]Wuhan Univ, Sch Elect Informat, Wuhan 430000, Peoples R China
  • [ 7 ] [Tian, Daxin]Beihang Univ, Beijing Adv Innovat Ctr Big Data & Brain Comp, Sch Transportat Sci & Engn, Beijing Key Lab Cooperat Vehicle Infrastruct Syst, Beijing 100191, Peoples R China

Reprint 's Address:

  • 陈平平

    [Chen, Pingping]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China;;[He, Xiaofan]Wuhan Univ, Sch Elect Informat, Wuhan 430000, Peoples R 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

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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