Telecommunications Science ›› 2022, Vol. 38 ›› Issue (2): 35-46.doi: 10.11959/j.issn.1000-0801.2022033

• Research and Development • Previous Articles     Next Articles

Task offloading and resource allocation in NOMA-based ultra-dense MEC networks

Yun SHENG1,2, Chen XU2, Guangyuan ZHENG3   

  1. 1 School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
    2 School of Artificial Intelligence, Beijing University of Posts and Telecommunications, Beijing 100876, China
    3 School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, China
  • Revised:2022-02-09 Online:2022-02-20 Published:2022-02-01
  • Supported by:
    The National Natural Science Foundation of China(62071179);The Beijing Nova Program of Science and Technology(Z191100001119124);The Fundamental Research Funds for the Central Universities(2019MS009)

Abstract:

In order to improve spectrum efficiency and meet the service demands of massive users, a non-orthogonal multiple access (NOMA)-based ultra-dense mobile edge computing (MEC) system was considered.In order to solve the serious communication interference caused by simultaneous offloading of multiple users and make efficient use of edge server resources, a joint task offloading and resource allocation scheme was proposed to minimize the system energy consumption while meeting the quality of service (QoS) of all users.Offloading decision, power control, computation resource and subchannel resource allocation were jointly considered in the proposed scheme.Simulations results show that the proposed scheme can efficiently lower system energy consumption compared to the other offloading schemes.

Key words: MEC, NOMA, task offloading, resource allocation

CLC Number: 

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