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Improving tradeoff among downlink rates of service providers in a VWN by using noma

Robat Mili, M ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1109/LCOMM.2018.2875686
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2019
  4. Abstract:
  5. In this letter, we improve the tradeoff among the downlink (DL) rates of service providers (SPs), provided by a mobile virtual network operator (MVNO) using non-orthogonal multiple access (NOMA) technique. In this respect, NOMA provides a suitable opportunity for the MVNO to share resources among SPs more efficiently. Regarding interaction among the DL rates provided for SPs we formulate our resource allocation problem as a multiobjective optimization problem (MOOP) while taking into account user fairness. By using the weighted Tchebycheff technique, we are able to solve the formulated MOOP by considering different tradeoffs among DL rates of different SPs. Our numerical results show that by using NOMA, each SP gains a higher rate compared with orthogonal frequency-division multiple access. © 2019 IEEE
  6. Keywords:
  7. Rate tradeoff ; Virtualized wireless network (VWN) ; Multiobjective optimization ; Optimization ; Resource allocation ; Silicon carbide ; Virtualization ; Wave interference ; Downlink ; Mobile virtual network operator ; Multi-objective optimization problem ; NOMA ; Non orthogonal multiple accesses (NOMA) ; Numerical results ; Resource allocation problem ; Resource management ; Frequency division multiple access
  8. Source: IEEE Communications Letters ; Volume 23, Issue 1 , 2019 , Pages 156-159 ; 10897798 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/8490894