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QoS-aware User Grouping Strategy for Downlink Multi-Cell NOMA Systems

Fengqian Guo, Hancheng Lu, Xiaoda Jiang, Ming Zhang, Jun Wu, Chang Wen Chen
2021 IEEE Transactions on Wireless Communications  
In this paper, we exploit both game theory and graph theory to study QoS-aware user grouping strategies, aiming at minimizing power consumption in downlink multi-cell NOMA systems.  ...  In multi-cell non-orthogonal multiple access (NOMA) systems, designing an appropriate user grouping strategy is an open problem due to diverse quality of service (QoS) requirements and inter-cell interference  ...  The novelty of this paper mainly lies in two aspects: 1) We focus on a novel QoS aware user grouping problem in a downlink multi-cell NOMA system, while most existing studies perform user grouping based  ... 
doi:10.1109/twc.2021.3088487 fatcat:zroyd2z5mjdodhr5qxmdythwue

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

S. M. Riazul Islam, Ming Zeng, Octavia A. Dobre, Kyung-Sup Kwak
2017 arXiv   pre-print
This article presents advances in resource allocation (RA) for downlink non-orthogonal multiple access (NOMA) systems, focusing on user pairing (UP) and power allocation (PA) algorithms.  ...  Simulation results are presented, which validate the advantages of NOMA over OMA. Finally, the article provides avenues for further research on RA for downlink NOMA.  ...  These include scalability, presence of inter-cell interference for multi-cell networks, integration of carrier aggregation, RA under limited channel feedback, QoS-guaranteed RA, and multi-hop communications  ... 
arXiv:1801.00121v1 fatcat:nwg4qna4jvbvtnzyioyhlzvgtu

On the optimal user grouping in NOMA system technology

Antonino Masaracchia, Dac-Binh Ha, Ngoc-Phuc Le
2018 EAI Endorsed Transactions on Industrial Networks and Intelligent Systems  
system performance, and ii) to provide an exhaustive survey of the most relevant studies which can serve as useful starting point for the definition of new channel state-aware user-aggregation strategies  ...  This paper provides a state-of-art analysis of the most relevant studies on optimal user-aggregation strategies for non-orthogonal multiple access (NOMA) technology.  ...  Authors in [33] examined a joint user pairing and dynamic power allocation (JUPDPA) design to maximize the energy efficiency (EE) in the multi-cell MIMO-NOMA downlink system.  ... 
doi:10.4108/eai.13-7-2018.159802 fatcat:q2c5iiqm7bhobgbeovxy2v66ry

Guest Editorial Massive Access for 5G and Beyond—Part II

Xiaoming Chen, Derrick Wing Kwan Ng, Wei Yu, Erik G. Larsson, Naofal Al-Dhahir, Robert Schober
2021 IEEE Journal on Selected Areas in Communications  
The paper "Generalized user grouping in NOMA based on overlapping coalition formation game," by Chen et al., proposes a novel generalized user grouping (GuG) concept for NOMA from an overlapping perspective  ...  The paper "Optimized shallow neural networks for sum-rate maximization in energy harvesting downlink multiuser NOMA systems," by Lee et al., considers a power allocation problem in energy harvesting downlink  ...  The paper "Generalized user grouping in NOMA based on overlapping coalition formation game," by Chen et al., proposes a novel generalized user grouping (GuG) concept for NOMA from an overlapping perspective  ... 
doi:10.1109/jsac.2020.3018841 fatcat:fjzpbpm5brbmnnpehhsjc4lkoa

Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G [article]

Yuanwei Liu and Shuowen Zhang and Xidong Mu and Zhiguo Ding and Robert Schober and Naofal Al-Dhahir and Ekram Hossain and Xuemin Shen
2022 arXiv   pre-print
Moreover, given the high compatibility and flexibility of NOMA, we provide an overview of current research efforts on multi-antenna techniques for NOMA, promising future application scenarios of NOMA,  ...  Next, we propose a unified framework for NGMA based on multiple antennas and NOMA, where both downlink and uplink transmissions are considered, thus setting the foundation for this emerging research area  ...  On the one hand, for multi-cell NOMA communication systems, cell-edge NOMA users suffer from not only intra-cell NOMA interference but also inter-cell interference, which causes performance degradations  ... 
arXiv:2108.04561v2 fatcat:yy2wmlweffft5b2wzefkrde6za

A Systematic Review on NOMA Variants for 5G and Beyond

Ishan Budhiraja, Neeraj Kumar, Sudhanshu Tyagi, Sudeep Tanwar, Zhu Han, Doug Young Suh, MD. Jalil Piran
2021 IEEE Access  
However, interference persists, keeping given quality of service (QoS) provision to end-users for different 5G applications.  ...  Over the last few years, interference has been a major hurdle for successfully implementing various end-user applications in the fifth-generation (5G) of wireless networks.  ...  beamforming (ZFBF) technique for multi-user MIMO-NOMA system in a downlink scenario.  ... 
doi:10.1109/access.2021.3081601 fatcat:mzmmr3km5zehhh3fnupyelfo3e

Multi-Dimensional Multiple Access with Resource Utilization Cost Awareness for Individualized Service Provisioning in 6G [article]

Jie Mei and Wudan Han and Xianbin Wang and H. Vincent Poor
2021 arXiv   pre-print
To achieve this, we propose a multi-dimensional multiple access (MDMA) protocol to meet individual User Equipment's (UE's) unique QoS demands while utilizing multi-dimensional radio resources cost-effectively  ...  The increasingly diversified Quality-of-Service (QoS) requirements envisioned for future wireless networks call for more flexible and inclusive multiple access techniques for supporting emerging applications  ...  The authors in [17] investigated a multi-dimensional resource allocation strategy in a multi-cell multi-subcarrier downlink MIMO-NOMA network, including a spatial user-clustering design and an optimization  ... 
arXiv:2108.10396v1 fatcat:sav7xq54nzh25b2tiojoohpatu

Rate-Splitting Multiple Access for Coordinated Multi-Point Joint Transmission [article]

Yijie Mao and Bruno Clerckx and Victor O.K. Li
2019 arXiv   pre-print
) and Non-Orthogonal Multiple Access (NOMA) in downlink single-cell systems.  ...  Numerical results show that, in CoMP JT, RSMA achieves significant WSR improvement over SDMA and NOMA in a wide range of inter-user and inter-cell channel strength disparities.  ...  Therefore, RSMA is a more general, robust and powerful multiple access scheme for downlink CoMP JT networks. downlink multi-cell system of M cells, indexed by M = {1, . . . , M }.  ... 
arXiv:1804.10516v2 fatcat:pg4fnzhsvjcfndbsg2lp37mrgi

Table of contents

2021 IEEE Transactions on Wireless Communications  
Xinjiang Xia, Pengcheng Zhu, Jiamin Li, Hao Wu, Dongming Wang, Yuanxue Xin, and Xiaohu You 7856 QoS-Aware User Grouping Strategy for Downlink Multi-Cell NOMA Systems ...................................  ...  Jeya Pradha Jeyaraj, Martin Haenggi, Ahmed Hamdi Sakr, and Hongsheng Lu for Uplink NOMA With Statistical Delay QoS Guarantee .................................... .......................................  ... 
doi:10.1109/twc.2021.3128842 fatcat:j2m45mtx5zggtcsdu7yhpwiwpa

A PSO-Based Approach for User-Pairing Schemes in NOMA Systems: Theory and Applications

Antonino Masaracchia, Daniel B da Costa, Trung Q Duong, Minh-Nghia Nguyen, Minh T Nguyen
2019 IEEE Access  
Our results find applicability in the definition of explicit channel-state-aware strategies for user multiplexing in NOMA systems, which, at the date, represents a research field that remains to be investigated  ...  while guaranteeing the quality-of-service (QoS) constraint of each user.  ...  In [14] , a dynamic power allocation scheme for downlink multi-carrier NOMA (MC-NOMA) systems has been proposed.  ... 
doi:10.1109/access.2019.2926641 fatcat:mxha7psegjhtnklforhoejazkq

Nonorthogonal Multiple Access for 5G and Beyond

Yuanwei Liu, Zhijin Qin, Maged Elkashlan, Zhiguo Ding, Arumugam Nallanathan, Lajos Hanzo
2017 Proceedings of the IEEE  
Finally, we offer some design guidelines for NOMA systems and identify promising research opportunities for the future.  ...  .), as well as the dramatically increasing demand for user access required for the Internet of Things (IoT), the fifth generation (5G) networks face challenges in terms of supporting largescale heterogeneous  ...  This is particularly important for downlink NOMA, since the SIC operations are usually carried out for cell-center users rather than for cell-edge users.  ... 
doi:10.1109/jproc.2017.2768666 fatcat:kpplouvkwbfurhitb3plb3y73m

Special Issue on Next Generation Multiple Access—Part I

Yuanwei Liu, Shuowen Zhang, Zhiguo Ding, Robert Schober, Naofal Al-Dhahir, Ekram Hossain, Xuemin Shen
2022 IEEE Journal on Selected Areas in Communications  
INTRODUCTION A S THE long-term evolution (LTE) system is reaching maturity and the fifth-generation (5G) systems are being commercially deployed, researchers have turned their attention to the development  ...  on the one hand, next-generation wireless networks are expected to achieve significantly higher capacity, extremely low latency, ultra-high reliability, as well as massive and ubiquitous connectivity for  ...  In [A20] , Xu et al. investigate a device-to-multi-device (D2MD)-assisted cooperative NOMA system, where cell-edge users (CEUs) and cell-center users are paired into a D2MD cluster.  ... 
doi:10.1109/jsac.2021.3139485 fatcat:c3shzlyzyvaixabgox7lx5kmdy

Non-Orthogonal Multiple Access for 5G and Beyond [article]

Yuanwei Liu, Zhijin Qin, Maged Elkashlan, Zhiguo Ding, Arumugam Nallanathan, Lajos Hanzo
2018 arXiv   pre-print
Finally, we offer some design guidelines for NOMA systems and identify promising research opportunities for the future.  ...  .), as well as the dramatically increasing demand for user access required for the Internet of Things (IoT), the fifth generation (5G) networks face challenges in terms of supporting large-scale heterogeneous  ...  [44] outlined a general framework for multi-cell downlink NOMA by adopting a coordinated multipoint (CoMP) transmission scheme by considering distributed power allocation (PA) strategy in each cell.  ... 
arXiv:1808.00277v1 fatcat:jgxujmeifbedhlul2szgkgsayq

IEEE Access Special Section: Advances in Interference Mitigation Techniques for Device-to-Device Communications

Masood Ur Rehman, Yue Gao, Mohammad Asad Rehman Chaudhry, Ghazanfar Ali Safdar, Yanli Xu
2019 IEEE Access  
He also serves as a reviewer for book publishers, the IEEE conferences, and leading journals.  ...  His research interests include compact antenna design, radiowave propagation and channel characterization, satellite navigation system antennas in cluttered environment, electromagnetic wave interaction  ...  The optimal solution is derived offline using the Rayleigh fading channels for any given QoS level of CU and NOMA-D2D users.  ... 
doi:10.1109/access.2019.2951878 fatcat:zthsxfmndfeazgzcx67ge4d4k4

Table of Contents

2020 IEEE Transactions on Vehicular Technology  
Camp 11295 User Grouping and Hybrid RF/Baseband Precoding for Multi-User Massive MIMO Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ...  Ding 10925 A Novel Downlink Interference Alignment Method for Multi-User MIMO System With No CSIT: A Space-Time Coding Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ... 
doi:10.1109/tvt.2020.3027076 fatcat:xns72myvtfhgpjy622lpgmii3i
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