波束赋形
发射机功率输出
计算机科学
最大功率转移定理
诺玛
电信线路
基站
单天线干扰消除
预编码
无线
凸优化
数学优化
功率控制
最优化问题
功率(物理)
计算机网络
发射机
多输入多输出
算法
电信
数学
正多边形
频道(广播)
物理
几何学
量子力学
作者
Lu Xia,Yang Zheng,Jingjing Cui,Yi Wu,Zhicheng Dong,Zhiguo Ding
标识
DOI:10.1109/wcsp52459.2021.9613725
摘要
This paper considers an intelligent reflecting surface (IRS)-assisted downlink cooperative multiple-input single-output non-orthogonal multiple access (MISO-NOMA) networks with simultaneous wireless information and power transfer (SWIPT). The purpose of this paper is to minimize the transmit power of the base station subject to the successive interference cancellation and the users' requirements. The optimization problem formulated incorporates the transmission precoding vectors design, IRS beamforming design and power splitting ratio control, which is nonconvex. For solving this challenging problem, we propose a successive convex approximation based iterative algorithm by decomposing the problem formulated into two sub-problems. Our simulation results illustrate that the proposed IRS-assisted cooperative NOMA scheme with SWIPT has lower transmit power than that based on IRS-NOMA without SWIPT and on IRS-OMA with dynamic time allocation.
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