Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing
In this paper, we consider mission-critical task offloading in the non-orthogonal multiple access (NOMA)-assisted mobile edge computing (MEC) networks, where local information collected from multiple local devices are processed at the MEC node. The process of the MEC service contains a NOMA-assisted...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9905567/ |
| _version_ | 1797996496116776960 |
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| author | Zhilin Liu Yao Zhu Yulin Hu Peng Sun Anke Schmeink |
| author_facet | Zhilin Liu Yao Zhu Yulin Hu Peng Sun Anke Schmeink |
| author_sort | Zhilin Liu |
| collection | DOAJ |
| description | In this paper, we consider mission-critical task offloading in the non-orthogonal multiple access (NOMA)-assisted mobile edge computing (MEC) networks, where local information collected from multiple local devices are processed at the MEC node. The process of the MEC service contains a NOMA-assisted communication phase and a computation phase, which is required to be reliable and low-latency. For such network, we derive the overall reliability of the service. On the one hand, we characterize the communication behavior in the finite blocklength (FBL) regime, where the impact of imperfect successive interference cancellation in the NOMA scheme is considered. On the other hand, we exploit the extreme value theory (EVT) to study the delay violation error of the computation phase. Following the characterizations, we provide an optimal design framework minimizing the overall error probability via a joint time and power allocation. To address the formulated non-convex problem, a modified block coordinate descent method is proposed, with which the original problem is decomposed into two sub-problems that can be solved optimally after conducting a set of analytical results. We validate our analytical model via simulations and demonstrate the proposed design’s improved performance in comparison to benchmarks. |
| first_indexed | 2024-04-11T10:18:19Z |
| format | Article |
| id | doaj.art-83a4f590d15442ba89d9c842733578c2 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-11T10:18:19Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-83a4f590d15442ba89d9c842733578c22022-12-22T04:29:53ZengIEEEIEEE Access2169-35362022-01-011010359810360910.1109/ACCESS.2022.32105109905567Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge ComputingZhilin Liu0Yao Zhu1https://orcid.org/0000-0002-1839-9780Yulin Hu2https://orcid.org/0000-0002-1047-9436Peng Sun3Anke Schmeink4School of Electronic Information, Wuhan University, Wuhan, P.R.ChinaSchool of Electronic Information, Wuhan University, Wuhan, P.R.ChinaSchool of Electronic Information, Wuhan University, Wuhan, P.R.ChinaDuke Kunshan University, Kunshan, ChinaChair of Information Theory and Data Analytics, RWTH Aachen University, Aachen, GermanyIn this paper, we consider mission-critical task offloading in the non-orthogonal multiple access (NOMA)-assisted mobile edge computing (MEC) networks, where local information collected from multiple local devices are processed at the MEC node. The process of the MEC service contains a NOMA-assisted communication phase and a computation phase, which is required to be reliable and low-latency. For such network, we derive the overall reliability of the service. On the one hand, we characterize the communication behavior in the finite blocklength (FBL) regime, where the impact of imperfect successive interference cancellation in the NOMA scheme is considered. On the other hand, we exploit the extreme value theory (EVT) to study the delay violation error of the computation phase. Following the characterizations, we provide an optimal design framework minimizing the overall error probability via a joint time and power allocation. To address the formulated non-convex problem, a modified block coordinate descent method is proposed, with which the original problem is decomposed into two sub-problems that can be solved optimally after conducting a set of analytical results. We validate our analytical model via simulations and demonstrate the proposed design’s improved performance in comparison to benchmarks.https://ieeexplore.ieee.org/document/9905567/finite blocklengthNOMAmobile edge computingreliability |
| spellingShingle | Zhilin Liu Yao Zhu Yulin Hu Peng Sun Anke Schmeink Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing IEEE Access finite blocklength NOMA mobile edge computing reliability |
| title | Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing |
| title_full | Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing |
| title_fullStr | Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing |
| title_full_unstemmed | Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing |
| title_short | Reliability-Oriented Design Framework in NOMA-Assisted Mobile Edge Computing |
| title_sort | reliability oriented design framework in noma assisted mobile edge computing |
| topic | finite blocklength NOMA mobile edge computing reliability |
| url | https://ieeexplore.ieee.org/document/9905567/ |
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