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Non-orthogonal Multiple Access assisted Mobile Edge Computing via Device-to-Device Communications
Wu,Yuan1; Qian,Liping2; Ouyang,Jinyuan2; Lu,Weidang2; Lin,Bin3; Shi,Zhiguo4
Conference Name2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall)
Source PublicationIEEE Vehicular Technology Conference
Conference Date18 Nov.-16 Dec. 2020
Conference PlaceVictoria, BC, Canada

Mobile edge computing (MEC) has been considered as a promising approach for enabling computation-intensive Internet services in future wireless systems. In this paper, we investigate non-orthogonal multiple access (NOMA) assisted MEC, in which edge-computing users (EUs) adopt NOMA to simultaneously offload part of their computation-workloads to the edge-server (ES). To improve the spectrum-efficiency, we consider a paradigm of underlaying device-to-device (D2D) communications, namely, the EUs reuse a cellular user's (CU's) licensed channel for offloading transmission. We firstly characterize the transmit-powers of EUs and CU in this D2D approach, and then formulate a joint optimization of the EUs' computation- workloads offloading and the ES's computation-resource allocation, with the objective of minimizing the latency in completing the EUs' tasks. In spite of the non-convexity of the formulated problem, we exploit its layered structure and propose an efficient algorithm for computing the optimal solution. Numerical results are provided to validate the effectiveness and efficiency of our proposed NOMA assisted MEC via the D2D sharing.

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Scopus ID2-s2.0-85101327371
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Document TypeConference paper
CollectionUniversity of Macau
Corresponding AuthorQian,Liping
Affiliation1.State Key Laboratory of Internet of Things for Smart City, University of Macau, Macao, China
2.College of Information Engineering, Zhejiang University of Technology, Hangzhou, China
3.Department of Communication Engineering, Dalian Maritime University, Dalian, China
4.College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Wu,Yuan,Qian,Liping,Ouyang,Jinyuan,et al. Non-orthogonal Multiple Access assisted Mobile Edge Computing via Device-to-Device Communications[C],2020.
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