Results 141 to 150 of about 2,701 (178)
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SGMA: Semi-granted multiple access for non-orthogonal multiple access (NOMA) in 5G networking
Journal of Network and Computer Applications, 2018Abstract With the rapid prosperity of mobile Internet, proliferating smart terminals, and deep penetration of Internet of things (IoTs), the fourth generation mobile communication system (4G) has become increasingly unable to meet the human needs. Therefore, the fifth generation mobile communication system (5G), being studied world-widely, needs to ...
Mao Yang, Zhongjiang Yan
exaly +2 more sources
Coordinated Non-Orthogonal Multiple Access (CO-NOMA)
2016 IEEE Global Communications Conference (GLOBECOM), 2016We propose a Coordinated Non-Orthogonal Multiple Access (CO-NOMA) scheme for resource allocation in the context of mobile networks. NOMA refers to schemes where multiple users can access the wireless channel in the same frequency band simultaneously. In this study, we consider NOMA with power domain multiplexing, where the near- far property in space ...
Anthony Beylerian, Tomoaki Ohtsuki
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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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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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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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Performance of Non-Orthogonal Multiple Access (NOMA) in a C-RAN System
2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017Cloud radio access network(C-RAN) has been proposed as a novel mobile network architecture allowing centralized processing. Resource allocation (RA) is the core task in order to coordinate transmissions.In this paper efficient resource allocation technique in non-orthogonal multiple access (NOMA) based C-RAN systems is proposed. The task of RA is solved
Rupesh Singh +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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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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A Novel Interference Cancellation Technique for Non-Orthogonal Multiple Access (NOMA)
2015 IEEE Global Communications Conference (GLOBECOM), 2014In this paper, a novel interference cancellation (IC) technique is proposed for asynchronous non-orthogonal multiple access (NOMA) systems. The bit error rate (BER) performance of an uplink NOMA system with the proposed IC technique is presented.
Haci, Huseyin +2 more
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