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 | |
| 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 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Cite this
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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
TY - GEN
T1 - Uplink NOMA with multi-antenna
AU - Kim, Beomju
AU - Chung, Wonsuk
AU - Lim, Sungmook
AU - Suh, Sangwook
AU - Kwun, Jonghyung
AU - Choi, Sooyong
AU - Hong, Daesik
PY - 2015/7/1
Y1 - 2015/7/1
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.
UR - http://www.scopus.com/inward/record.url?scp=84940434809&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940434809&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2015.7146149
DO - 10.1109/VTCSpring.2015.7146149
M3 - Conference contribution
AN - SCOPUS:84940434809
T3 - IEEE Vehicular Technology Conference
BT - 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -