Uplink NOMA with multi-antenna

Beomju Kim; Wonsuk Chung; Sungmook Lim; Sangwook Suh; Jonghyung Kwun; Sooyong Choi; Daesik Hong

doi:10.1109/VTCSpring.2015.7146149

Uplink NOMA with multi-antenna

Beomju Kim, Wonsuk Chung, Sungmook Lim, Sangwook Suh, Jonghyung Kwun, Sooyong Choi, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

32 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479980888
DOIs	https://doi.org/10.1109/VTCSpring.2015.7146149
Publication status	Published - 2015 Jul 1
Event	81st IEEE Vehicular Technology Conference, VTC Spring 2015 - Glasgow, United Kingdom Duration: 2015 May 11 → 2015 May 14

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2015
ISSN (Print)	1550-2252

Other

Other	81st IEEE Vehicular Technology Conference, VTC Spring 2015
Country	United Kingdom
City	Glasgow
Period	15/5/11 → 15/5/14

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/VTCSpring.2015.7146149

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title = "Uplink NOMA with multi-antenna",

abstract = "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.",

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Kim, B, Chung, W, Lim, S, Suh, S, Kwun, J, Choi, S & Hong, D 2015, Uplink NOMA with multi-antenna. in 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings., 7146149, IEEE Vehicular Technology Conference, vol. 2015, Institute of Electrical and Electronics Engineers Inc., 81st IEEE Vehicular Technology Conference, VTC Spring 2015, Glasgow, United Kingdom, 15/5/11. https://doi.org/10.1109/VTCSpring.2015.7146149

Uplink NOMA with multi-antenna. / Kim, Beomju; Chung, Wonsuk; Lim, Sungmook; Suh, Sangwook; Kwun, Jonghyung; Choi, Sooyong ; Hong, Daesik.

2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7146149 (IEEE Vehicular Technology Conference; Vol. 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Choi, Sooyong

AU - Hong, Daesik

PY - 2015/7/1

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N2 - 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.

AB - 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.

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Uplink NOMA with multi-antenna

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