Results 251 to 260 of about 16,146,716 (284)

Performance Analysis of Orthogonal Multiple Access and Non-Orthogonal Multiple Access

International Journal of Electrical Engineering and Sustainability
Non-orthogonal multiple access (NOMA) as one of the upcoming and promising multiple access technologies has a significant impact on the development of the 5G wireless communication systems. A detailed description of downlink system model is illustrated by using mathematical equations. Multiple-input multiple-output (MIMO) communications with multi-user
null Alsayah A. M. Emhemed, null Mohsen H. S. Kara, null Tarek S. Abdou   +2 more
openaire   +1 more source

Non-Orthogonal Multiple Access

Advanced Computing and Communications, 2019
Non-orthogonal multiple access (NOMA) has been recently proposed as a technique to increase the network throughput and to support massive connectivity, which are major requirements in the fifth generation (5G) communication systems. The NOMA can be realized through two different approaches, namely, in (a) power-domain, and (b) code-domain. In the power-
openaire   +1 more source

A Survey of Non-Orthogonal Multiple Access for 5G

2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017
Compared to the traditional orthogonal multiple access (MA), non-orthogonal multiple access (NOMA) technology can achieve higher capacity gain and higher spectrum efficiency, support larger massive connectivity. In this article, according to signal transmission characteristic, the NOMA schemes are classified into four categories: scrambling based NOMA,
Kun Lu, Zhanji Wu, Xuanbo Shao
openaire   +2 more sources

Non-Orthogonal Multiple Access for Multiple-Antenna Relaying Networks

IEEE Communications Letters, 2015
In this letter, we design non-orthogonal multiple access (NOMA) for multiple-antenna relaying networks. The receive antennas at the mobile users are assumed to adopt maximal ratio combining (MRC), whereas the transmit antenna that maximizes the instantaneous signal-to-noise ratio (SNR) at the relay is selected.
Jinjin Men, Jianhua Ge
openaire   +2 more sources

Performance Analysis of Non-orthogonal Multiple Access over Orthogonal Multiple Access

2022
Purnima K. Sharma, Dinesh Sharma, E. Kusuma Kumari, T. J. V. Subrahmanyeswara Rao   +3 more
openaire   +1 more source

Parallel Retransmissions in Orthogonal Multiple Access Multiple Relay Networks

2022 20th International Symposium on Modeling and Optimization in Mobile, Ad hoc, and Wireless Networks (WiOpt), 2022
Al Khansa, Ali, Visoz, Raphaël, Hayel, Yezekael, Lasaulce, Samson, Alkhansa, Rasha   +4 more
openaire   +3 more sources

Frequency Hopping Non-Orthogonal Multiple Access

2023 International Conference on Wireless Communications and Signal Processing (WCSP), 2023
Huan Su, Ming Zhao 0008, Xudong Fang, Puhua Zhang   +3 more
openaire   +2 more sources

Non-orthogonal Multiple Access

2022
Suvra Sekhar Das, Ramjee Prasad
openaire   +1 more source

A State-of-the-Art Survey on Reconfigurable Intelligent Surface-Assisted Non-Orthogonal Multiple Access Networks

Proceedings of the IEEE, 2022
Zhiguo Ding, Lu Lv, Octavia Dobre
exaly  

Orthogonal Model Division Multiple Access

IEEE Transactions on Wireless Communications
Haotai Liang, Kaijun Liu, Xiaoyi Liu, Hongchao Jiang, Chen Dong 0001, Xiaodong Xu 0001, Kai Niu 0001, Ping Zhang 0003   +7 more
openaire   +2 more sources