Name
Abstract | ||
|---|---|---|
In this letter, we investigate the optimal power allocation scheme in a cooperative relaying system using non-orthogonal multiple access from the perspective of global energy efficiency (GEE), where a source node communicates with two destination nodes simultaneously via a decode-and-forward relay. We optimize the transmit power at the source node and relay node jointly under quality of service requirements. It is proved that the optimal GEE is strictly quasi-concave with regard to the transmit power at the source node. Based on this quasi-concavity, we decompose the original nonconvex problem into a bilayer optimization problem and obtain the optimal power allocation solution. Simulation results show the effectiveness of our theoretical findings. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/LCOMM.2018.2790379 | IEEE Communications Letters |
Keywords | Field | DocType |
NOMA,Relays,Resource management,Silicon carbide,Decoding,Optimization,Protocols | Resource management,Noma,Transmitter power output,Computer science,Efficient energy use,Computer network,Quality of service,Decoding methods,Optimization problem,Relay | Journal |
Volume | Issue | ISSN |
22 | 3 | 1089-7798 |
Citations | PageRank | References |
2 | 0.38 | 0 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Qian Liu | 1 | 19 | 5.31 |
| Tiejun Lv | 2 | 669 | 97.19 |
| Zhipeng Lin | 3 | 42 | 13.17 |