影响因子：6.239

DOI码：10.1109/TVT.2018.2821166

发表刊物：IEEE Transactions on Vehicular Technology

摘要：Nonorthogonal multiple access (NOMA) has been considered as a promising technology for fifth-generation wireless communication systems. In this paper, we consider a two-cell multiple-input-multiple-output NOMA downlink interference channel with one multiantenna base station (BS) and multiple multiantenna users in each cell. Each user treats interferences from adjacent cell as additional noises and does not attempt to decode them. This paper aims to design interference channel beamformers to maximize weighted sum capacity of the strongest users in two cells under quality of service requirements at other users and transmit power budget constraint at each BS. Such problem is complicated and nonconvex due to the expression of a logarithm of a determinant (log det) minus log det in the objective function and constraints. For the nonconvex problem, we put forward a successive convex approximation (SCA) based iterative algorithm. Since the computational complexity of SCA-based iterative algorithm is high, we also put forward an efficient majorization-minimization based iterative algorithm. Based on simulation results, we show that our developed NOMA schemes are superior to the zero-forcing-based NOMA, orthogonal-NOMA, and orthogonal multiple access schemes.

合写作者：李亦卿,李全忠,秦家银

第一作者：姜淼

论文类型：期刊论文

通讯作者：张旗

学科门类：工学

一级学科：信息与通信工程

文献类型：J

卷号：67

期号：8

页面范围：6951–6959

ISSN号：1939-9359

是否译文：否

发表时间：2018-08-01

收录刊物：SCI

发布期刊链接：https://ieeexplore.ieee.org/document/8328923