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- W3128488559 abstract "In this paper, the problem of resource allocation for multi-carrier clustered non-orthogonal multiple-access (NOMA)-enabled mobile edge computing (MEC) networks is considered. In particular, the goal is to maximize the network sum-offloading-efficiency (SOE) via joint subcarrier assignment, power allocation, and computing resource allocation (J-SA-PA-CRA) for all user clusters, under the partial offloading mode, and subject to transmit power, delay and computing resource constraints. However, the formulated J-SA-PA-CRA problem is non-convex, and happens to be NP-hard, and thus is computationally-prohibitive. In turn, a low-complexity solution procedure is proposed, which decouples problem J-SA-PA-CRA into two subproblems: (1) J-PA-CRA per (user cluster, subcarrier) pair, and (2) one-to-one subcarrier assignment. The first subproblem is optimally solved via a successive convex approximation algorithm. As for the second subproblem, the polynomial-time complexity Kuhn–Munkres (KM) algorithm is proposed for optimal subcarrier assignment. Also, the stable marriage matching (SMM) algorithm is devised for a sub-optimal subcarrier assignment solution, but with less complexity than the KM algorithm. Extensive simulation results are provided to validate the proposed solution procedure, illustrating that the KM-based (SMM-based) solution procedure efficiently yields the optimal (a sub-optimal) network SOE, in comparison to the J-SA-PA-CRA scheme (solved via a global optimization package), while being superior to their OMA counterpart schemes (e.g. FDMA and TDMA)." @default.
- W3128488559 created "2021-02-15" @default.
- W3128488559 creator A5016435044 @default.
- W3128488559 date "2021-04-01" @default.
- W3128488559 modified "2023-10-15" @default.
- W3128488559 title "Resource allocation for offloading-efficiency maximization in clustered NOMA-enabled mobile edge computing networks" @default.
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- W3128488559 doi "https://doi.org/10.1016/j.comnet.2021.107919" @default.
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