Joint User Grouping and Decoding Order in Uplink/Downlink MISO/SIMO-NOMA

Dinh Thuan Do; Thanh Luan Nguyen; Sabit Ekin; Zeeshan Kaleem; Miroslav Voznak

doi:10.1109/ACCESS.2020.3013835

Joint User Grouping and Decoding Order in Uplink/Downlink MISO/SIMO-NOMA

Dinh Thuan Do^*, Thanh Luan Nguyen, Sabit Ekin, Zeeshan Kaleem, Miroslav Voznak

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

In this paper, we design and investigate a novel uplink/downlink (UL/DL) non-orthogonal multiple access (NOMA) network using a common relay. Instead of successive interference cancellation (SIC) for UL/DL NOMA systems with fixed decoding order based on the statistical channel state information (CSI), we adopt the dynamic decoding order according to power level of received signals. Specifically, by exploiting the CSI-based dynamic decoding order, better fairness can be achieved and applicable. This decoding scheme is highly suitable for implementing a NOMA system in practice. The closed-form expressions for the users' outage probabilities are derived, and then an asymptotic analysis is carried out. Insightful discussions with diversity order are provided. Simulations are performed to corroborate the exactness of the theoretical analysis.

Original language	English
Article number	9154710
Pages (from-to)	143632-143643
Number of pages	12
Journal	IEEE Access
Volume	8
DOIs	https://doi.org/10.1109/ACCESS.2020.3013835
State	Published - 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2013 IEEE.

Keywords

dynamic decoding order
non-orthogonal multiple access
outage probability
Uplink/downlink

ASJC Scopus subject areas

General Computer Science
General Materials Science
General Engineering

Access to Document

10.1109/ACCESS.2020.3013835

Cite this

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title = "Joint User Grouping and Decoding Order in Uplink/Downlink MISO/SIMO-NOMA",

abstract = "In this paper, we design and investigate a novel uplink/downlink (UL/DL) non-orthogonal multiple access (NOMA) network using a common relay. Instead of successive interference cancellation (SIC) for UL/DL NOMA systems with fixed decoding order based on the statistical channel state information (CSI), we adopt the dynamic decoding order according to power level of received signals. Specifically, by exploiting the CSI-based dynamic decoding order, better fairness can be achieved and applicable. This decoding scheme is highly suitable for implementing a NOMA system in practice. The closed-form expressions for the users' outage probabilities are derived, and then an asymptotic analysis is carried out. Insightful discussions with diversity order are provided. Simulations are performed to corroborate the exactness of the theoretical analysis.",

keywords = "dynamic decoding order, non-orthogonal multiple access, outage probability, Uplink/downlink",

author = "Do, \{Dinh Thuan\} and Nguyen, \{Thanh Luan\} and Sabit Ekin and Zeeshan Kaleem and Miroslav Voznak",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2020",

doi = "10.1109/ACCESS.2020.3013835",

language = "English",

volume = "8",

pages = "143632--143643",

journal = "IEEE Access",

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T1 - Joint User Grouping and Decoding Order in Uplink/Downlink MISO/SIMO-NOMA

AU - Do, Dinh Thuan

AU - Nguyen, Thanh Luan

AU - Ekin, Sabit

AU - Kaleem, Zeeshan

AU - Voznak, Miroslav

PY - 2020

Y1 - 2020

N2 - In this paper, we design and investigate a novel uplink/downlink (UL/DL) non-orthogonal multiple access (NOMA) network using a common relay. Instead of successive interference cancellation (SIC) for UL/DL NOMA systems with fixed decoding order based on the statistical channel state information (CSI), we adopt the dynamic decoding order according to power level of received signals. Specifically, by exploiting the CSI-based dynamic decoding order, better fairness can be achieved and applicable. This decoding scheme is highly suitable for implementing a NOMA system in practice. The closed-form expressions for the users' outage probabilities are derived, and then an asymptotic analysis is carried out. Insightful discussions with diversity order are provided. Simulations are performed to corroborate the exactness of the theoretical analysis.

AB - In this paper, we design and investigate a novel uplink/downlink (UL/DL) non-orthogonal multiple access (NOMA) network using a common relay. Instead of successive interference cancellation (SIC) for UL/DL NOMA systems with fixed decoding order based on the statistical channel state information (CSI), we adopt the dynamic decoding order according to power level of received signals. Specifically, by exploiting the CSI-based dynamic decoding order, better fairness can be achieved and applicable. This decoding scheme is highly suitable for implementing a NOMA system in practice. The closed-form expressions for the users' outage probabilities are derived, and then an asymptotic analysis is carried out. Insightful discussions with diversity order are provided. Simulations are performed to corroborate the exactness of the theoretical analysis.

KW - dynamic decoding order

KW - non-orthogonal multiple access

KW - outage probability

KW - Uplink/downlink

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DO - 10.1109/ACCESS.2020.3013835

M3 - Article

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ER -

Joint User Grouping and Decoding Order in Uplink/Downlink MISO/SIMO-NOMA

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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