Uplink NOMA with Multi-Antenna

被引：0

作者：

Kim, Beomju ^{[1
]}

Chung, Wonsuk ^{[1
]}

Lim, Sungmook ^{[2
]}

Suh, Sangwook ^{[3
]}

Kwun, Jonghyung ^{[3
]}

Choi, Sooyong ^{[1
]}

Hong, Daesik

机构：

[1] Yonsei Univ, Sch Elect & Elect Engn, Informat Telecommun Lab B715, 50 Yonsei Ro, Seoul 120749, South Korea

[2] Korea Natl Univ Transportat, Chungju Si, Chungcheongbuk, South Korea

[3] Samsung DMC R&D Ctr, Suwon, Gyeonggi Do, South Korea

来源：

2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2015年

关键词：

non-orthogonal multiple access; uplink power control; multi-antenna system;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, we propose a uplink (UL) non-orthogonal multiple access (NOMA) systems equipped with multiple antennas to enhance the sum capacity of UL. In the proposed UL NOMA system, a base station (BS) with N antennas can support 2N users by sharing the space resource. However, sharing the space resource leads to interference between users. Therefore, to mitigate the interference and improve the sum capacity, we additionally propose a set selection algorithm and power control scheme. The set selection algorithm, which selects 2N users based on orthogonality and gain-difference between their channels, reduces the interference between users. Furthermore, the power control scheme can maximize the sum capacity with ensuring minimum target rate. Numerical results show that the proposed system improves the sum capacity over that of the conventional orthogonal multiple access (OMA) system.

引用

页数：5

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