We investigate NOMA in 5G networks with RF energy harvesting to maximize number of admitted users as well as throughput. We considered a network that consists of K users ...
Abstract:
Fifth generation (5G) networks are expected to support a large number of devices, provide spectral efficiency and energy efficiency. Non-orthogonal multiple access (NOMA)...Show MoreMetadata
Abstract:
Fifth generation (5G) networks are expected to support a large number of devices, provide spectral efficiency and energy efficiency. Non-orthogonal multiple access (NOMA) has been recently investigated to accommodate a large number of devices as well as spectral efficiency. On the other hand, energy efficiency in 5G networks can be addressed using energy harvesting. In this paper, we investigate NOMA in 5G networks with RF energy harvesting to maximize the number of admitted users as well as system throughput. We model a mathematical framework to optimize user grouping, power allocation, and time allocation for information transfer and energy harvesting while satisfying the minimum data rate and transmit power requirements of users. The proposed framework for optimization is a mixed integer non-linear programming problem. The mesh adaptive direct search (MADS) algorithm is adopted to find solution of the proposed framework. The MADS algorithm provides an epsilon optimal solution. The exhaustive search algorithm is used as a bench mark. Finally, the effectiveness of the proposed framework is supported by simulation results.
We investigate NOMA in 5G networks with RF energy harvesting to maximize number of admitted users as well as throughput. We considered a network that consists of K users ...
Published in: IEEE Access ( Volume: 7)
Funding Agency:
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Energy Harvesting ,
- 5G Networks ,
- Radio Resource Management ,
- Simulation Results ,
- Data Rate ,
- Energy Efficiency ,
- Search Algorithm ,
- User Groups ,
- Information Transfer ,
- Multiple Access ,
- User Requirements ,
- Time Allocation ,
- Spectral Efficiency ,
- System Throughput ,
- Non-orthogonal Multiple Access ,
- Mixed-integer Nonlinear Programming ,
- Adaptive Search ,
- Exhaustive Search Algorithm ,
- Types Of Problems ,
- Base Station ,
- Resource Block ,
- Successive Interference Cancellation ,
- Wireless Power Transfer ,
- Cloud Radio Access Network ,
- Non-orthogonal Multiple Access System ,
- Optimal Power ,
- Quality Of Service Requirements ,
- Usage Rate ,
- Sum Rate ,
- Power Allocation Scheme
- Author Keywords
Contents Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Energy Harvesting ,
- 5G Networks ,
- Radio Resource Management ,
- Simulation Results ,
- Data Rate ,
- Energy Efficiency ,
- Search Algorithm ,
- User Groups ,
- Information Transfer ,
- Multiple Access ,
- User Requirements ,
- Time Allocation ,
- Spectral Efficiency ,
- System Throughput ,
- Non-orthogonal Multiple Access ,
- Mixed-integer Nonlinear Programming ,
- Adaptive Search ,
- Exhaustive Search Algorithm ,
- Types Of Problems ,
- Base Station ,
- Resource Block ,
- Successive Interference Cancellation ,
- Wireless Power Transfer ,
- Cloud Radio Access Network ,
- Non-orthogonal Multiple Access System ,
- Optimal Power ,
- Quality Of Service Requirements ,
- Usage Rate ,
- Sum Rate ,
- Power Allocation Scheme
- Author Keywords