Results 181 to 190 of about 6,700 (214)

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

2013 IEEE 77th Vehicular Technology Conference (VTC Spring), 2013
This 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, Yoshihisa Kishiyama, Anass Benjebbour, Takehiro Nakamura, Anxin Li, Kenichi Higuchi   +5 more
openaire   +1 more source

Cooperative Non-Orthogonal Multiple Access in 5G Systems

IEEE Communications Letters, 2015
Non-orthogonal multiple access (NOMA) has received considerable recent attention as a promising candidate for 5G systems. A key feature of NOMA is that users with better channel conditions have prior information about the messages of other users.
Zhiguo Ding, Mugen Peng, H Vincent Poor   +2 more
exaly   +2 more sources

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

Downlink Non-Orthogonal Multiple Access (NOMA) Constellation Rotation

2016 IEEE 84th Vehicular Technology Conference (VTC-Fall), 2016
The 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, Xin Wang, Tsuyoshi Hasegawa, Tokuro Kubo   +3 more
openaire   +1 more source

Performance of Non-Orthogonal Multiple Access (NOMA) in a C-RAN System

2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017
Cloud 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, Huiling Zhu, Jiangzhou Wang   +2 more
openaire   +1 more source

A Novel Interference Cancellation Technique for Non-Orthogonal Multiple Access (NOMA)

2015 IEEE Global Communications Conference (GLOBECOM), 2014
In 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, Zhu, Huiling, Wang, Jiangzhou   +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

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 0001, Bo Li 0089, Zhicheng Bai, Zhongjiang Yan   +3 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

Concept and practical considerations of non-orthogonal multiple access (NOMA) for future radio access

2013 International Symposium on Intelligent Signal Processing and Communication Systems, 2013
As a promising downlink multiple access scheme for future radio access (FRA), this paper discusses the concept and practical considerations of non-orthogonal multiple access (NOMA) with a successive interference canceller (SIC) at the receiver side. The goal is to clarify the benefits of NOMA over orthogonal multiple access (OMA) such as OFDMA adopted ...
Benjebbour A., Saito Y., Kishiyama Y., Li A., Harada A., Nakamura T.   +5 more
openaire   +1 more source