Results 81 to 90 of about 16,015,285 (164)
Cooperative non-orthogonal multiple access with physical layer network coding [PDF]
, 2019 Physical layer network coding (PNC) has been proposed for information exchange between a pair of users assisted by a relay. However, the spectral efficiency of PNC reduces when the number of user pairs increases due to the requirement of orthogonal ...
Chee, Yen Leow, Chun, Yeen Ho
core +1 more source
Non-orthogonal multiple access networks under QoS delay constraints
, 2019 International audienceThe multiple access technique allows users to share the allotted spectrum in the most effective manner. It can be classified in the orthogonal multiple access (OMA) techniques which is based on the time/frequency/code domain (TDMA ...
Nasfi, Rihem, Chorti, Arsenia
core +2 more sources
Two-way relay assisted non-orthogonal multiple access
, 2019 The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA).
Ding, Zhiguo +2 more
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UAV-BS-based Hybrid OMA-NOMA System with Multiple Antennas for Multi-user Communication
Journal of Telecommunications and Information TechnologyIn this paper, an unmanned aerial vehicle (UAV) using hybrid orthogonal multiple access (OMA) and non-orthogonal multiple access (NOMA) solutions aided by multiple input multiple output (MIMO) technology is proposed to provide wireless communication for
Ameer Y. Sadeeq, Mohamad Ahmed
doaj +1 more source
Fractionally Spread Multicarrier CDMA: A Multiple-Access Scheme for Various Wireless Channels
, 2003 In multicarrier code-division multiple-access (MCCDMA) the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each subband signal is transmitted using a subcarrier frequency. In this
Yang, L-L., Hanzo, L.
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Generalized NOMA-ARQ With Round-Robin IIC for IoT Systems
IEEE Open Journal of Vehicular TechnologyThis article investigates the performance of non-orthogonal multiple access (NOMA) integrated with automatic repeat request (ARQ) for point-to-point Internet of Things (IoT) wireless backhaul links.
Meshari Alshehri +3 more
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User Association in Non-Orthogonal Multiple Access Networks
, 2018 In this paper, the flexible user association is inves- tigated in non- orthogonal multiple access (NOMA)-based multi- ple base stations (BSs) networks. More particularly, users are partitioned into multiple orthogonal clusters to allocate into different ...
Yuanwei Liu +7 more
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A Thorough Review of Prospective Technologies for 5G/Beyond 5G Wireless Networks
Engineered ScienceRecently, wireless communication systems have relied on the orthogonal multiple access (OMA) principle to distribute radio resources to users through orthogonal access.
Kiran Kumar Godugu +4 more
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Performance analysis of partial NOMA-based layered D2D communications
EURASIP Journal on Wireless Communications and NetworkingConventionally, non-orthogonal multiple access (NOMA) has traditionally been implemented separately from orthogonal multiple access (OMA), aiming to improve the capacity of multi-user systems. However, a recent study has ventured beyond this conventional
Jinjuan Ju, Qiang Sun
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