Power Allocation for Energy-Efficient Downlink NOMA Systems
| Autor: | Naziha Glei, Rhaimi Belgacem Chibani |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Flexibility (engineering)
021110 strategic defence & security studies Optimization problem Computer science Distributed computing 05 social sciences 0211 other engineering and technologies 0507 social and economic geography 02 engineering and technology Spectral efficiency medicine.disease 050701 cultural studies Noma Telecommunications link medicine Resource management 5G Efficient energy use |
| Zdroj: | 2019 19th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA). |
| DOI: | 10.1109/sta.2019.8717240 |
| Popis: | As a potential multiple access scheme for Nonorthogonal Multiple radio Access (NOMA) is considered a promising technique for the fifth-generation mobile networks (5G). This technology will improve both Spectral Efficiency (SE) and flexibility of radio resource allocation for users as it will be shown. Green Radio (GR), which concentrates on Energy Efficiency (EE), is becoming a sought-after trend in the process of a future for an energy-efficient system. In this paper, we seek to optimize the power allocation problem in order to improve EE for downlink NOMA systems. For this, a low complexity power allocation approach for each user has been proposed. Optimization problem's solution is achieved when optimal power values are obtained. The simulation results obtained show the effectiveness of our proposed allocation strategy. NOMA actually offers better improvements in EE compared than conventional non-orthogonal access. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|