Resource Allocation for Downlink NOMA Systems: Key Techniques and Open Issues

S. M.Riazul Islam; Ming Zeng; Octavia A. Dobre; Kyung Sup Kwak

doi:10.1109/MWC.2018.1700099

Resource Allocation for Downlink NOMA Systems: Key Techniques and Open Issues

S. M.Riazul Islam, Ming Zeng, Octavia A. Dobre, Kyung Sup Kwak

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

355 Citations (Scopus)

Abstract

This article presents advances in resource allocation for downlink non-orthogonal multiple access (NOMA) systems, focusing on user pairing and power allocation algorithms. The former pairs the users to obtain high capacity gain by exploiting the channel gain difference between the users, while the latter allocates power to users in each cluster to balance system throughput and user fairness. Additionally, the article introduces the concept of cluster fairness and proposes the divide-and-next-largest-difference-based user pairing algorithm to distribute the capacity gain among the NOMA clusters in a controlled manner. Furthermore, performance comparison between multiple-input multiple-output NOMA (MIMO-NOMA) and MIMO orthogonal multiple access (MIMO-OMA) is conducted when users have pre-defined quality of service. Simulation results are presented, which validate the advantages of NOMA over OMA. Finally, the article provides avenues for further research on resource allocation for downlink NOMA.

Original language	English
Article number	8352621
Pages (from-to)	40-47
Number of pages	8
Journal	IEEE Wireless Communications
Volume	25
Issue number	2
DOIs	https://doi.org/10.1109/MWC.2018.1700099
Publication status	Published - 30 Apr 2018
Externally published	Yes

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

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@article{002fa9c76a4e4437bc843da8f44250af,

title = "Resource Allocation for Downlink NOMA Systems: Key Techniques and Open Issues",

abstract = "This article presents advances in resource allocation for downlink non-orthogonal multiple access (NOMA) systems, focusing on user pairing and power allocation algorithms. The former pairs the users to obtain high capacity gain by exploiting the channel gain difference between the users, while the latter allocates power to users in each cluster to balance system throughput and user fairness. Additionally, the article introduces the concept of cluster fairness and proposes the divide-and-next-largest-difference-based user pairing algorithm to distribute the capacity gain among the NOMA clusters in a controlled manner. Furthermore, performance comparison between multiple-input multiple-output NOMA (MIMO-NOMA) and MIMO orthogonal multiple access (MIMO-OMA) is conducted when users have pre-defined quality of service. Simulation results are presented, which validate the advantages of NOMA over OMA. Finally, the article provides avenues for further research on resource allocation for downlink NOMA.",

keywords = "NOMA, Downlink, Resource management, Silicon carbide, Performance gain, Clustering algorithms, Interference, 5G mobile communication, Multiaccess communication",

author = "Islam, \{S. M.Riazul\} and Ming Zeng and Dobre, \{Octavia A.\} and Kwak, \{Kyung Sup\}",

note = "Funding Information: Chair at Memorial University, Canada. In 2013 she was a visiting professor at Massachusetts Institute of Technology and the University of Brest, France. Previously, she was with New Jersey Institute of Technology and Polytechnic Institute of Technology, Romania. She was the recipient of a Royal Society scholarship and a Fulbright fellowship. Her research interests include enabling technologies for 5G, cognitive radio systems, blind signal identification, and parameter estimation techniques, as well as optical and underwater communications. She is the Editor-in-Chief of IEEE Communications Letters. She has served as an Editor for various prestigious journals, as well as Technical Co-Chair of different international conferences, such as IEEE ICC and GLOBECOM. She is a Member-at-Large of the Administrative Committee of the IEEE Instrumentation and Measurement Society, and has served as Chair and Co-Chair of different technical committees. She is a Fellow of the Engineering Institute of Canada. Funding Information: This work was supported by the National Research Foundation of Korea (NRF- 2017R1A2B2012337), in part by Sejong University Faculty Research Fund (No. 20170139), as well as the Natural Sciences and Engi neering Research Council of Canada (NSERC), through its Discovery program. Publisher Copyright: {\textcopyright} 2002-2012 IEEE.",

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doi = "10.1109/MWC.2018.1700099",

language = "English",

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TY - JOUR

T1 - Resource Allocation for Downlink NOMA Systems

T2 - Key Techniques and Open Issues

AU - Islam, S. M.Riazul

AU - Zeng, Ming

AU - Dobre, Octavia A.

AU - Kwak, Kyung Sup

N1 - Funding Information: Chair at Memorial University, Canada. In 2013 she was a visiting professor at Massachusetts Institute of Technology and the University of Brest, France. Previously, she was with New Jersey Institute of Technology and Polytechnic Institute of Technology, Romania. She was the recipient of a Royal Society scholarship and a Fulbright fellowship. Her research interests include enabling technologies for 5G, cognitive radio systems, blind signal identification, and parameter estimation techniques, as well as optical and underwater communications. She is the Editor-in-Chief of IEEE Communications Letters. She has served as an Editor for various prestigious journals, as well as Technical Co-Chair of different international conferences, such as IEEE ICC and GLOBECOM. She is a Member-at-Large of the Administrative Committee of the IEEE Instrumentation and Measurement Society, and has served as Chair and Co-Chair of different technical committees. She is a Fellow of the Engineering Institute of Canada. Funding Information: This work was supported by the National Research Foundation of Korea (NRF- 2017R1A2B2012337), in part by Sejong University Faculty Research Fund (No. 20170139), as well as the Natural Sciences and Engi neering Research Council of Canada (NSERC), through its Discovery program. Publisher Copyright: © 2002-2012 IEEE.

PY - 2018/4/30

Y1 - 2018/4/30

N2 - This article presents advances in resource allocation for downlink non-orthogonal multiple access (NOMA) systems, focusing on user pairing and power allocation algorithms. The former pairs the users to obtain high capacity gain by exploiting the channel gain difference between the users, while the latter allocates power to users in each cluster to balance system throughput and user fairness. Additionally, the article introduces the concept of cluster fairness and proposes the divide-and-next-largest-difference-based user pairing algorithm to distribute the capacity gain among the NOMA clusters in a controlled manner. Furthermore, performance comparison between multiple-input multiple-output NOMA (MIMO-NOMA) and MIMO orthogonal multiple access (MIMO-OMA) is conducted when users have pre-defined quality of service. Simulation results are presented, which validate the advantages of NOMA over OMA. Finally, the article provides avenues for further research on resource allocation for downlink NOMA.

AB - This article presents advances in resource allocation for downlink non-orthogonal multiple access (NOMA) systems, focusing on user pairing and power allocation algorithms. The former pairs the users to obtain high capacity gain by exploiting the channel gain difference between the users, while the latter allocates power to users in each cluster to balance system throughput and user fairness. Additionally, the article introduces the concept of cluster fairness and proposes the divide-and-next-largest-difference-based user pairing algorithm to distribute the capacity gain among the NOMA clusters in a controlled manner. Furthermore, performance comparison between multiple-input multiple-output NOMA (MIMO-NOMA) and MIMO orthogonal multiple access (MIMO-OMA) is conducted when users have pre-defined quality of service. Simulation results are presented, which validate the advantages of NOMA over OMA. Finally, the article provides avenues for further research on resource allocation for downlink NOMA.

KW - NOMA

KW - Downlink

KW - Resource management

KW - Silicon carbide

KW - Performance gain

KW - Clustering algorithms

KW - Interference

KW - 5G mobile communication

KW - Multiaccess communication

UR - https://www.scopus.com/pages/publications/85046629480

U2 - 10.1109/MWC.2018.1700099

DO - 10.1109/MWC.2018.1700099

M3 - Article

AN - SCOPUS:85046629480

SN - 1536-1284

VL - 25

SP - 40

EP - 47

JO - IEEE Wireless Communications

JF - IEEE Wireless Communications

IS - 2

M1 - 8352621

ER -

Resource Allocation for Downlink NOMA Systems: Key Techniques and Open Issues

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