User selection and power allocation schemes for downlink NOMA systems with imperfect CSI

Wenbo Cai; Chen Chen; Lin Bai; Ye Jin; Jinho Choi

doi:10.1109/VTCFall.2016.7881960

User selection and power allocation schemes for downlink NOMA systems with imperfect CSI

Wenbo Cai
, Chen Chen^*
, Lin Bai
, Ye Jin
, Jinho Choi

^*Corresponding author for this work

School of Cyber Science and Technology

Peking University
Gwangju Institute of Science and Technology

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

29 Scopus citations

Abstract

In this paper, we investigate the resource allocation problem for the downlink non-orthogonal multiple access (NOMA) system with imperfect channel state information (CSI). We first derive closed-form expressions for the outage probabilities with and without the estimated instantaneous channel fading coefficient for each user. Upper bounds on both of the probability expressions above are proposed. Based on the outage probability bounds, we propose the power allocation scheme which is combined with a user selection step to minimize the maximum of the outage probability bounds of all the users. Simulation results show that the maximum outage probability can be significantly decreased by exploiting the priori knowledge of the estimated instantaneous channel fading coefficient for each user.

Original language	English
Title of host publication	2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509017010
DOIs	https://doi.org/10.1109/VTCFall.2016.7881960
State	Published - 2 Jul 2016
Event	84th IEEE Vehicular Technology Conference, VTC Fall 2016 - Montreal, Canada Duration: 18 Sep 2016 → 21 Sep 2016

Publication series

Name	IEEE Vehicular Technology Conference
Volume	0
ISSN (Print)	1550-2252

Conference

Conference	84th IEEE Vehicular Technology Conference, VTC Fall 2016
Country/Territory	Canada
City	Montreal
Period	18/09/16 → 21/09/16

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10.1109/VTCFall.2016.7881960

Cite this

Cai, W., Chen, C., Bai, L., Jin, Y., & Choi, J. (2016). User selection and power allocation schemes for downlink NOMA systems with imperfect CSI. In 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings Article 7881960 (IEEE Vehicular Technology Conference; Vol. 0). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2016.7881960

@inproceedings{79623ca06801417dac0e4b09b1b483d5,

title = "User selection and power allocation schemes for downlink NOMA systems with imperfect CSI",

abstract = "In this paper, we investigate the resource allocation problem for the downlink non-orthogonal multiple access (NOMA) system with imperfect channel state information (CSI). We first derive closed-form expressions for the outage probabilities with and without the estimated instantaneous channel fading coefficient for each user. Upper bounds on both of the probability expressions above are proposed. Based on the outage probability bounds, we propose the power allocation scheme which is combined with a user selection step to minimize the maximum of the outage probability bounds of all the users. Simulation results show that the maximum outage probability can be significantly decreased by exploiting the priori knowledge of the estimated instantaneous channel fading coefficient for each user.",

author = "Wenbo Cai and Chen Chen and Lin Bai and Ye Jin and Jinho Choi",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 84th IEEE Vehicular Technology Conference, VTC Fall 2016 ; Conference date: 18-09-2016 Through 21-09-2016",

year = "2016",

month = jul,

day = "2",

doi = "10.1109/VTCFall.2016.7881960",

language = "英语",

series = "IEEE Vehicular Technology Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings",

address = "美国",

}

Cai, W, Chen, C, Bai, L, Jin, Y & Choi, J 2016, User selection and power allocation schemes for downlink NOMA systems with imperfect CSI. in 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings., 7881960, IEEE Vehicular Technology Conference, vol. 0, Institute of Electrical and Electronics Engineers Inc., 84th IEEE Vehicular Technology Conference, VTC Fall 2016, Montreal, Canada, 18/09/16. https://doi.org/10.1109/VTCFall.2016.7881960

User selection and power allocation schemes for downlink NOMA systems with imperfect CSI. / Cai, Wenbo; Chen, Chen; Bai, Lin et al.
2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016. 7881960 (IEEE Vehicular Technology Conference; Vol. 0).

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

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T1 - User selection and power allocation schemes for downlink NOMA systems with imperfect CSI

AU - Cai, Wenbo

AU - Chen, Chen

AU - Bai, Lin

AU - Jin, Ye

AU - Choi, Jinho

PY - 2016/7/2

Y1 - 2016/7/2

N2 - In this paper, we investigate the resource allocation problem for the downlink non-orthogonal multiple access (NOMA) system with imperfect channel state information (CSI). We first derive closed-form expressions for the outage probabilities with and without the estimated instantaneous channel fading coefficient for each user. Upper bounds on both of the probability expressions above are proposed. Based on the outage probability bounds, we propose the power allocation scheme which is combined with a user selection step to minimize the maximum of the outage probability bounds of all the users. Simulation results show that the maximum outage probability can be significantly decreased by exploiting the priori knowledge of the estimated instantaneous channel fading coefficient for each user.

AB - In this paper, we investigate the resource allocation problem for the downlink non-orthogonal multiple access (NOMA) system with imperfect channel state information (CSI). We first derive closed-form expressions for the outage probabilities with and without the estimated instantaneous channel fading coefficient for each user. Upper bounds on both of the probability expressions above are proposed. Based on the outage probability bounds, we propose the power allocation scheme which is combined with a user selection step to minimize the maximum of the outage probability bounds of all the users. Simulation results show that the maximum outage probability can be significantly decreased by exploiting the priori knowledge of the estimated instantaneous channel fading coefficient for each user.

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DO - 10.1109/VTCFall.2016.7881960

M3 - 会议稿件

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BT - 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 84th IEEE Vehicular Technology Conference, VTC Fall 2016

Y2 - 18 September 2016 through 21 September 2016

ER -

User selection and power allocation schemes for downlink NOMA systems with imperfect CSI

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