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Optimal User Pairing for Downlink Non-Orthogonal Multiple Access (NOMA)
IEEE Wireless Communications Letters, 2019In this letter, we explore user pairing in a downlink non-orthogonal multiple access (NOMA) network. As power allocation inherently intertwines with user pairing, a joint user pairing and power allocation problem is considered to optimize the achievable sum rate (ASR) with minimum rate constraint for each user, which is a mixed integer programming ...
Lipeng Zhu, Jun Zhang, Zhenyu Xiao
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Non-Orthogonal Multiple Access (NOMA) for Cellular Future Radio Access
2013 IEEE 77th Vehicular Technology Conference (VTC Spring), 2013This paper presents a non-orthogonal multiple access (NOMA) concept for cellular future radio access (FRA) towards the 2020s information society. Different from the current LTE radio access scheme (until Release 11), NOMA superposes multiple users in the power domain although its basic signal waveform could be based on the orthogonal frequency division
Yuya Saito +5 more
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Receiver Design for Downlink Non-Orthogonal Multiple Access (NOMA)
2015 IEEE 81st Vehicular Technology Conference (VTC Spring), 2015Non-orthogonal multiple access (NOMA) is one of the promising radio access techniques for further cellular enhancements toward 5G. Compared to orthogonal multiple access (OMA) such as orthogonal frequency-division multiple access (OFDMA), large performance gains were confirmed via system-level simulations.
Chunlin Yan +5 more
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Partial Non-Orthogonal Multiple Access (P-NOMA)
IEEE Wireless Communications Letters, 2019In this letter, we propose a novel hybrid type of power-domain non-orthogonal multiple access (NOMA) in downlink environments, called partial NOMA (P-NOMA). In conventional NOMA, where the signals of user equipments (UEs) are fully overlapped, the utilization of the bandwidth can be maximized, but doing so also maximizes the interference from the other
Yosub Park, Daesik Hong
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Non-orthogonal multiple access (NOMA) for indoor visible light communications
2015 4th International Workshop on Optical Wireless Communications (IWOW), 2015Providing multiple access support to visible light communication (VLC) systems requires new networking architecture. Non-orthogonal multiple access (NOMA) is a proposed multiple access technique for future cellular systems. In this work, based on a realistic indoor channel conditions, we apply NOMA to indoor VLC channels and demonstrate its superior ...
Refik Çaglar Kizilirmak +2 more
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Non-Orthogonal Multiple Access (NOMA) for Future Radio Access
2016Radio access technologies for cellular mobile communications are typically characterized by multiple access schemes, e.g., frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA), and OFDMA. In the 4th generation (4G) mobile communication systems such as Long-Term Evolution (LTE) (Au et al.,
Razieh Razavi +2 more
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User-Pairing Based Non-Orthogonal Multiple Access (NOMA) System
2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016Non-orthogonal multiple access (NOMA) is a promising multiple access scheme for next generation wireless networks. This paper investigates the sum rate maximization problem for NOMA system over a frequency selective fading channel with its users being paired according to their channel powers. A hierarchical power allocation process is proposed, whereby
Ziad Qais Al-Abbasi, Daniel K. C. So
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Downlink Non-Orthogonal Multiple Access (NOMA) Constellation Rotation
2016 IEEE 84th Vehicular Technology Conference (VTC-Fall), 2016The non-orthogonal multiple access (NOMA) technique or more generally the non-orthogonal principle is a crucial component for the next generation cellular system. For two-user downlink NOMA, the constellations of near and far users are superposed for transmission, and maximum likelihood (ML) or successive interference cancellation (SIC) receiver is ...
Jian Zhang +3 more
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Non-orthogonal Multiple Access (NOMA)
Encyclopedia of Wireless Networks, 2018Yong Zhou, Vincent W. S. Wong
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Design of user clustering and precoding for downlink non-orthogonal multiple access (NOMA)
MILCOM 2015 - 2015 IEEE Military Communications Conference, 2015In this paper, we propose a novel user clustering algorithm for non-orthogonal multiple access (NOMA) considering the channel correlation between users and the channel gain. We also adopt sum-rate maximization approach to find an optimal precoding matrix in the multi-user multiple-input-multiple-output (MU-MIMO) setup after the user clustering ...
Jongmok Kim +4 more
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