Results 11 to 20 of about 16,146,716 (284)
Controlled Power Cooperative Non Orthogonal Multiple Access Relay Networks
ElectricaRecent work related to cooperative communication and power allocation has attracted much attention among researchers. This paper compares orthogonal multiple access (OMA), non orthogonal multiple access (NOMA), and cooperative NOMA.
Mario Ligwa, Vipin Balyan
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Non-Orthogonal Frequency Division Multiple Access [PDF]
2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020 This paper proposes a frequency-domain multiple user access scheme termed non-orthogonal frequency division multiple access (NoFDMA), which maintains the same data rate per user while allowing more users to access via non-orthogonal user overlapping in a
Darwazeh, IZZAT, Xu, T
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Noise-Domain Non-Orthogonal Multiple Access
IEEE Open Journal of the Communications SocietyIn this paper, we present noise-domain non-orthogonal multiple access (ND-NOMA), an innovative communication scheme that utilizes the modulation of artificial noise mean and variance to convey information.
Erkin Yapici +2 more
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Rate Compatible Modulation for Non-Orthogonal Multiple Access [PDF]
IEEE Access, 2020 We propose a new Non-Orthogonal Multiple Access (NOMA) coding scheme based on the use of a Rate Compatible Modulation (RCM) encoder for each user. By properly designing the encoders and taking advantage of the additive nature of the Multiple Access ...
Imanol Granada +2 more
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An orthogonal multiple access coding scheme [PDF]
Communications in Information and Systems, 2012 Consider a collection of unsynchronized, half-duplex wireless nodes, communicating over a shared spectrum with local affine clocks. The clocks areunsynchronized in the sense that they do not tick at the same rate, called skew, and have different offsets. The nodes also do not know each others rates or offsets.
Yih-Chun Hu +2 more
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Non-orthogonal multiple access for FSO backhauling [PDF]
2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018 This paper has been submitted to IEEE WCNC ...
Marzieh Najafi +4 more
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Non-Orthogonal Multiple Access: A Unified Perspective [PDF]
IEEE Wireless Communications, 2018 Non-orthogonal multiple access (NOMA) is a promising technique for future mobile communication systems, which can approach multiuser channel capacity by sharing the same time-frequency resources with multiple users. In this article, we provide a unified framework for NOMA and review the principles of various NOMA schemes in different domains with the ...
Qi Wang 0002 +3 more
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Trellis-Coded Non-Orthogonal Multiple Access [PDF]
IEEE Wireless Communications Letters, 2020 In this letter, we propose a trellis-coded nonorthogonal multiple access (NOMA) scheme. The signals for different users are produced by trellis coded modulation (TCM) and then superimposed on different power levels. By interpreting the encoding process via the tensor product of trellises, we introduce a joint detection method based on the Viterbi ...
Xun Zou, Mehdi Ganji, Hamid Jafarkhani
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On the Comparison of Optimal NOMA and OMA in a Paradigm Shift of Emerging Technologies
IEEE Access, 2022 Non-orthogonal multiple access (NOMA) is a better multiple access technique than orthogonal multiple access (OMA), precisely orthogonal frequency division multiple access (OFDMA) scheme, at the conceptual level for fifth-generation (5G) networks and ...
Joydev Ghosh +5 more
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An Improved Network-Coded Multiple Access for Power-Balanced Non-Orthogonal Multiple Access
IEEE Access, 2018 A recently proposed network-coded multiple access (NCMA), consisting of XOR-based channel decoding and multi-user complete decoding (MUD-CD), can significantly improve throughput over conventional successive interference cancellation (SIC) decoding under
Pingping Chen +4 more
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