Results 151 to 160 of about 13,256 (188)

Receiver Design for Downlink Non-Orthogonal Multiple Access (NOMA)

2015 IEEE 81st Vehicular Technology Conference (VTC Spring), 2015
Non-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, Atsushi Harada, Anass Benjebbour, Yang Lan, Anxin Li, Huiling Jiang   +5 more
openaire   +1 more source

Software Defined Radio Based Non-orthogonal Multiple Access (NOMA) Systems

Wireless Personal Communications, 2021
This paper focuses primarily on the study of the implementation of Non-orthogonal multiple access (NOMA) systems on Software defined radio (SDR) platforms, since NOMA has been recognized as a key enabling technology for the fifth generation (5G) wireless networks.
Bathula Siva Kumar Reddy, Kiran Mannem, K. Jamal   +2 more
openaire   +1 more source

Non-Orthogonal Multiple Access (NOMA) for Future Radio Access

2016
Radio 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, Mehrdad Dianati, Muhammad Ali Imran   +2 more
openaire   +1 more source

Optimum power allocation for non-orthogonal multiple access (NOMA)

2016 IEEE 10th International Conference on Application of Information and Communication Technologies (AICT), 2016
An optimum power allocation scheme for non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC) technique for downlink channels of next generation cellular networks is proposed in this paper. In NOMA downlinks, the signals for each user are superimposed at the transmitter side and SIC is implemented at the receiver side to ...
Talgat Manglayev, Refik Caglar Kizilirmak, Yau Hee Kho   +2 more
openaire   +1 more source

Non-orthogonal multiple access (NOMA) for indoor visible light communications

2015 4th International Workshop on Optical Wireless Communications (IWOW), 2015
Providing 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 ...
Kizilirmak, R. C., Rowel, C. R., Uysal, Murat   +2 more
openaire   +2 more sources

Optimal User Pairing for Downlink Non-Orthogonal Multiple Access (NOMA)

IEEE Wireless Communications Letters, 2019
In 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, Xianbin Cao, Dapeng Oliver Wu   +4 more
openaire   +1 more source

Non-orthogonal multiple access (NOMA) for future downlink radio access of 5G

China Communications, 2015
Multiple access (MA) technology is of most importance for 5G. Non-orthogonal multiple access (NOMA) utilizing power domain and advanced receiver has been considered as a promising candidate MA technology recently. In this paper, the NOMA concept is presented toward future enhancements of spectrum efficiency in lower frequency bands for downlink of 5G ...
Anxin Li, Yang Lan, Xiaohang Chen, Huiling Jiang   +3 more
openaire   +1 more source

SGMA: Semi-granted multiple access for non-orthogonal multiple access (NOMA) in 5G networking

Journal of Network and Computer Applications, 2018
Abstract 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, Bo Li, Zhicheng Bai, Zhongjiang Yan   +3 more
openaire   +1 more source

Non-orthogonal multiple access (NOMA): Concept, performance evaluation and experimental trials

2015 International Conference on Wireless Networks and Mobile Communications (WINCOM), 2015
Non-orthogonal multiple access (NOMA) has been attracting a lot of attention as a promising downlink multiple access scheme for LTE enhancements and 5G. This paper introduces an overview of the concept, performance evaluation gains and our experimental trials related to NOMA.
Anass Benjebbour, Keisuke Saito, Anxin Li, Yoshihisa Kishiyama, Takehiro Nakamura   +4 more
openaire   +1 more source

Performance Analysis of Uplink Non-orthogonal Multiple Access (NOMA)

2022 Systems of Signals Generating and Processing in the Field of on Board Communications, 2022
Taoufik Ben Rejeb, M. G. Bakulin, V. B. Kreyndelin, D. Y. Pankratov, A. E. Smirnov   +4 more
openaire   +1 more source