標題: | Optimal Power Allocation and Signal Phase Selection in NOMA Wireless Relay Networks |
作者: | Liu, Yen-Chun Gau, Rung-Hung 電信工程研究所 Institute of Communications Engineering |
關鍵字: | NOMA;wireless relay networks;power allocation;signal phase selection;non-convex optimization |
公開日期: | 1-Jan-2020 |
摘要: | In this paper, we propose a novel approach of optimal power allocation and signal phase selection for NOMA wireless relay networks. Specifically, to optimize the network throughput, the base station and the stronger relay optimally allocate their transmission power, while the weaker relay selects an optimal signal phase. To maximize the end-to-end sum rate, we formulate a non-convex optimization problem and derive novel analytical results. In addition, we propose the four-candidate greedy algorithm for optimal power allocation and signal phase selection in NOMA wireless relay networks. Simulation results show that the proposed greedy algorithm could significantly improve the system performance. |
URI: | http://hdl.handle.net/11536/155062 |
ISBN: | 978-1-7281-3893-0 |
ISSN: | 2331-9852 |
期刊: | 2020 IEEE 17TH ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC 2020) |
起始頁: | 0 |
結束頁: | 0 |
Appears in Collections: | Conferences Paper |