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Result Analysis of Efficient MIMO Framework for NOMA Downlink and Uplink Transmission based on Signal Alignment

Sonam Rai, Akhilesh Jain
2018 International Journal of Computer Applications  
Keywords Non-orthogonal multiple access technique, uplink, spectral efficiency, fairness.  ...  Specifically, we first study an optimal intracell inter-tier cooperation to mitigate interference between high power nodes and low power nodes.  ...  Flow Chart In this proposed work explore the concept of non-orthogonal multiple access (NOMA) scheme for the future radio access for 5G.  ... 
doi:10.5120/ijca2018916907 fatcat:cymbisattrhincfo7x7kft7rha

Full-Duplex Non-Orthogonal Multiple Access for Modern Wireless Networks [article]

Mohammadali Mohammadi, Xiaoyan Shi, Batu K. Chalise, Himal A. Suraweera, Caijun Zhong, John S. Thompson
2017 arXiv   pre-print
Non-orthogonal multiple access (NOMA) is an interesting concept to provide higher capacity for future wireless communications.  ...  , power control, and link scheduling.  ...  On a parallel development, non-orthogonal multiple access (NOMA) is another promising concept for improving the spectral efficiency of next generation wireless networks [4] .  ... 
arXiv:1710.11062v2 fatcat:mngthlvmnzeaddxa4vihcfonfu

Uplink non-orthogonal multiple access for 5G wireless networks

Mohammed Al-Imari, Pei Xiao, Muhammad Ali Imran, Rahim Tafazolli
2014 2014 11th International Symposium on Wireless Communications Systems (ISWCS)  
Orthogonal Frequency Division Multiple Access (OFDMA) as well as other orthogonal multiple access techniques fail to achieve the system capacity limit in the uplink due to the exclusivity in resource allocation  ...  Current Non-Orthogonal Multiple Access (NOMA) techniques introduce redundancy by coding/spreading to facilitate the users' signals separation at the receiver, which degrade the system spectral efficiency  ...  In this paper, we proposed a novel uplink Non-Orthogonal Multiple Access (NOMA) technique, in which the users are able to share the subcarriers.  ... 
doi:10.1109/iswcs.2014.6933459 dblp:conf/iswcs/Al-ImariXIT14 fatcat:qdqrm2iukbgl5crr42umr3x2om

On the Performance Balancing for Uplink NOMA Systems

Nam-Soo Kim, Cheongju University
2020 International Journal of Intelligent Engineering and Systems  
Recently, power back-off scheme is proposed in uplink non-orthogonal multiple access (NOMA) systems.  ...  multiple access (NOMA) systems.  ...  This causes interferences to the far user in the adjacent channel in frequency division multiple access (FDMA) system and on the same channel in code division multiple access (CDMA) system.  ... 
doi:10.22266/ijies2020.1231.40 fatcat:jqeubulig5d43pkmdzqiiii5bi

Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends

Linglong Dai, Bichai Wang, Yifei Yuan, Shuangfeng Han, Chih-lin I, Zhaocheng Wang
2015 IEEE Communications Magazine  
multiple access (OFDMA) for 4G are primarily orthogonal multiple access (OMA) schemes.  ...  Basically, NOMA allows controllable interferences by non-orthogonal resource allocation with the tolerable increase in receiver complexity.  ... 
doi:10.1109/mcom.2015.7263349 fatcat:3iaayl4m5zg6pkdtnel2wetnsi

Rate Performance and Spectral Efficiency of Non-Orthogonal Multiple Access for 5G Communication

2019 International journal of recent technology and engineering  
This paper gives clear idea about the Non-Orthogonal Multiple Access (NOMA) technique and different challenges to overcome in NOMA and also a brief description of different power allocation techniques  ...  Multiple access is a key procedure which is used from 1G to 4G communication.  ...  The available radio resources can be utilized efficiently when Non-Orthogonal Multiple Access techniques are used.  ... 
doi:10.35940/ijrte.b2358.078219 fatcat:3rwr7lxa5nf7vb3kdvcdjtonom

List of acronyms [chapter]

2021 Inclusive Radio Communications for 5G and Beyond  
Flying Platform NFV Network Function Virtualization NLOS Non Line of Sight NOMA Non-Orthogonal Multiple Access NPRACH NB-IoT Physical Random Access Channel NPUSCH NB-IoT Physical Uplink Shared  ...  Orthogonal Time and Frequency Signaling PAAS Platform as a Service PAPR Peak to Average Power Ration PAS Power Angular Spectrum PB Packet Block PCA Power Control Algorithm PCell Macro base  ... 
doi:10.1016/b978-0-12-820581-5.00018-3 fatcat:md57yivmrrbj5e363zz45cjz64

Survey on the State-of-the-Art in Device-to-Device Communication: A Resource Allocation Perspective [article]

Tariq Islam, Cheolhyeon Kwon
2022 arXiv   pre-print
The surveyed algorithms are divided into four categories based on their technical doctrine i.e., conventional optimization based, Non-Orthogonal-Multiple-Access (NOMA) based, game theory based and machine  ...  channel and/or power allocation.  ...  NON-ORTHOGONAL-MULTIPLE-ACCESS BASED ALGORITHMS NOMA can improve spectral efficiency by enabling transmitters to transmit multiple signals over the same channel using power superposition.  ... 
arXiv:2206.06980v1 fatcat:7lqq5xj3rffh7oymnfijtrnjku

An Overview of Massive MIMO Technology Components in METIS

Gabor Fodor, Nandana Rajatheva, Wolfgang Zirwas, Lars Thiele, Martin Kurras, Kaifeng Guo, Antti Tolli, Jesper H. Sorensen, Elisabeth de Carvalho
2017 IEEE Communications Magazine  
As the standardization of full dimension multiple-input multiple-output (MIMO) systems in the 3 rd Generation Partnership Project progresses, the research community has started to explore the potential  ...  of very large arrays as an enabler technology for meeting the requirements of 5 th generation systems.  ...  In our approach, the level of pilot contamination is controlled by adaptively setting the pilot reuse factor and balancing the pilot-data power ratio, which is beneficial for both the uplink and downlink  ... 
doi:10.1109/mcom.2017.1600802 fatcat:5rq2s6repzauznp2lgui2ezizi

Effect of Load Matrix Method in Removing the Interference in Inter and Intra Cellular Wireless Networks

Banda Sreenivas
2012 International Journal of Advanced Smart Sensor Network Systems  
We also propose a joint management of interference within and between cells for allocation of radio resources, results are showing that there is a significant improvement in the resource utilization so  ...  In this paper we propose the multi cell interference on overall radio resource utilization.  ...  [8] Therefore, in case of heavy inter-cell interference, the gains of orthogonal access over non-orthogonal access go down.  ... 
doi:10.5121/ijassn.2012.2303 fatcat:yqvvv4dc3nfdrkshnxtypz2cgm

An Analysis of the Power Imbalance on the Uplink of Power-Domain NOMA [article]

Shaokai Hu, Hao Huang, Guan Gui, Hikmet Sari
2022 arXiv   pre-print
perfectly balanced in terms of power as in Multi-User MIMO with power control.  ...  This finding leads to the questioning of the basic philosophy of Power-domain NOMA and suggests that the best strategy for uncorrelated channels is to perfectly balance the average signal powers received  ...  ., [20] ) in order to show that orthogonal multiple access is not optimal and that a higher capacity can be achieved by going to non-orthogonal multiple access.  ... 
arXiv:2205.02981v1 fatcat:3edzz34pzfg3xltnkqvhkqis6u

Non-orthogonal Multiple Access as an Enabler for Massive Connectivity for 5G and Beyond Networks [article]

Vimal Bhatia, Pragya Swami, Sanjeev Sharma, Rangeet Mitra
2019 arXiv   pre-print
Hence, introducing non-orthogonality to the multiple access scheme is advocated as a supreme methodology to serve multiple users simultaneously, thereby enhancing the connectivity.  ...  In scenarios with massive number of users, non-orthogonal multiple access scheme increases the number of active connections by superimposing the signal of multi-users on a same resource block, thereby  ...  NOMA scheme includes interleave division multiple access [3] , power domain non-orthogonal multiple access (PD-NOMA) [4] , [5] , [6] low density spreading CDMA [7] , sparse code multiple access (  ... 
arXiv:1912.07077v1 fatcat:jvsbldz735d6lakbhuyndppfzi

A Survey of Non-Orthogonal Multiple Access for 5G

Linglong Dai, Bichai Wang, Zhiguo Ding, Zhaocheng Wang, Sheng Chen, Lajos Hanzo
2018 IEEE Communications Surveys and Tutorials  
As one of the promising techniques of addressing these challenges, non-orthogonal multiple access (NOMA) has been actively investigated in recent years.  ...  In contrast to the family of conventional orthogonal multiple access (OMA) schemes, the key distinguishing feature of NOMA is to support a higher number of users than the number of orthogonal resource  ...  NOMA schemes Company Full Name Uplink (UL) Downlink (DL) 1 Power-domain NOMA [11]-[58] DCM Power-domain non-orthogonal multiple access UL/DL 2 SCMA [69]-[90] Huawei Sparse code multiple  ... 
doi:10.1109/comst.2018.2835558 fatcat:ycxmkfe3rjet7eikctqijc554m

Joint Pilot and Payload Power Control for Uplink MIMO-NOMA with MRC-SIC Receivers [article]

Zhiqiang Wei and Derrick Wing Kwan Ng and Jinhong Yuan
2018 arXiv   pre-print
This letter proposes a joint pilot and payload power allocation (JPA) scheme to mitigate the error propagation problem for uplink multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA  ...  A base station equipped with a maximum ratio combining and successive interference cancellation (MRC-SIC) receiver is adopted for multiuser detection.  ...  INTRODUCTION Non-orthogonal multiple access (NOMA) has recently been recognized as a promising multiple access solution to fulfill the stringent quality of service (QoS) requirements of the fifthgeneration  ... 
arXiv:1801.07884v1 fatcat:vr2jp6uezvew5j7nvr3dc4nyyq

The impact of space division multiplexing on resource allocation: a unified treatment of TDMA, OFDMA and CDMA

I. Koutsopoulos, L. Tassiulas
2008 IEEE Transactions on Communications  
We consider these access schemes in a generalized unified framework and propose heuristic algorithms for channel allocation, downlink beamforming and transmit power control so as to increase total provisioned  ...  Space division multiple access (SDMA) with an antenna array at the transmitter is a promising means for increasing system capacity and supporting rate-demanding services.  ...  Ren for his help on numerical results.  ... 
doi:10.1109/tcomm.2008.050102 fatcat:k2yb2uei4vannne4ghdblw4d4u
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