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Revolutionary sixth-generation wireless communications technologies and applications, notably digital twin networks (DTN), connected autonomous vehicles (CAVs), space-air-ground integrated networks (SAGINs), zero-touch networks, industry…

Non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) communication are two promising techniques to increase the system capacity in the fifth-generation (5G) mobile network. The former can achieve high spectral efficiency by…

Signal Processing · Electrical Eng. & Systems 2020-09-16 Yu Tian , Gaofeng Pan , Mohamed-Slim

Code-domain non-orthogonal multiple access (CD-NOMA) systems offer key benefits such as high spectral efficiency, low latency, high reliability, and massive connectivity. NOMA's ability to handle overloading allows multiple devices to share…

Signal Processing · Electrical Eng. & Systems 2024-10-23 Vinjamoori Vikas , Kuntal Deka , A. Rajesh

In this letter, we propose a non-orthogonal multiple access (NOMA) based scheme for multi-cell indoor visible light communications (VLC), where cell-edge user is jointly served by multiple cells. Unlike the typical designs in the existing…

Information Theory · Computer Science 2021-06-14 T. Uday , Abhinav Kumar , L. Natarajan

This article provides an overview of power-domain non-orthogonal multiple access for 5G systems. The basic concepts and benefits are briefly presented, along with current solutions and standardization activities. In addition, limitations…

Information Theory · Computer Science 2017-06-27 S. M. Riazul Islam , Ming Zeng , Octavia A. Dobre

A novel framework is proposed for cellular offloading with the aid of multiple unmanned aerial vehicles (UAVs), while non-orthogonal multiple access (NOMA) technique is employed at each UAV to further improve the spectrum efficiency of the…

Networking and Internet Architecture · Computer Science 2020-12-01 Ruikang Zhong , Xiao Liu , Yuanwei Liu , Yue Chen

As a prominent member of the next generation multiple access (NGMA) family, non-orthogonal multiple access (NOMA) has been recognized as a promising multiple access candidate for the sixth-generation (6G) networks. This article focuses on…

Information Theory · Computer Science 2022-05-13 Yuanwei Liu , Wenqiang Yi , Zhiguo Ding , Xiao Liu , Octavia Dobre , Naofal Al-Dhahir

Rate splitting multiple access (RSMA) and non-orthogonal multiple access (NOMA) are the key enabling multiple access techniques to enable massive connectivity. However, it is unclear whether RSMA would consistently outperform NOMA from a…

Information Theory · Computer Science 2023-06-16 Mohammad Amin Saeidi , Hina Tabassum

This article investigates a non-orthogonal multiple access (NOMA) enhanced Internet of Things (IoT) network. In order to provide connectivity, a novel cluster strategy is proposed, where multiple devices can be served simultaneously. Two…

Information Theory · Computer Science 2020-01-14 Tianwei Hou , Yuanwei Liu , Zhengyu Song , Xin Sun , Yue Chen

Understanding fundamental limits of the various technologies suggested for future 5G and beyond cellular systems is crucial for developing efficient state-of-the-art designs. A leading technology of major interest is non-orthogonal…

Information Theory · Computer Science 2018-01-16 Benjamin M. Zaidel , Ori Shental , Shlomo Shamai

Hybrid non-orthogonal multiple access (NOMA) has recently received significant research interest due to its ability to efficiently use resources from different domains and also its compatibility with various orthogonal multiple access (OMA)…

Information Theory · Computer Science 2024-07-08 Zhiguo Ding , H. Vincent Poor

In this paper, pattern division multiple access with large-scale antenna array (LSA-PDMA) is proposed as a novel non-orthogonal multiple access (NOMA) scheme. In the proposed scheme, pattern is designed in both beam domain and power domain…

Information Theory · Computer Science 2017-03-22 Peng Li , Yanxiang Jiang , Shaoli Kang , Fuchun Zheng , Xiaohu You

Conventional power-domain non-orthogonal multiple access (NOMA) relies on precise power control, which requires real-time channel state information at transmitters. This requirement severely limits its application to future wireless…

Information Theory · Computer Science 2020-03-13 Zhaoji Zhang , Ying Li , Guanghui Song , Chau Yuen , Yong Liang Guan

This paper investigates unmanned aerial vehicle (UAV) data collection systems with different multiple access schemes, where a rotary-wing UAV is dispatched to collect data from multiple ground nodes (GNs). Our goal is to maximize the…

Information Theory · Computer Science 2021-08-03 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Zhiguo Ding

This paper introduces a novel non-orthogonal multiple access (NOMA) concept named waveform-domain NOMA, which proposes the coexistence of different waveforms in the same resource element (RE). Regarding the demands of each user equipments…

Signal Processing · Electrical Eng. & Systems 2020-03-13 Mehmet Mert Şahin , Hüseyin Arslan

Being able to accommodate multiple simultaneous transmissions on a single channel, non-orthogonal multiple access (NOMA) appears as an attractive solution to support massive machine type communication (mMTC) that faces a massive number of…

Signal Processing · Electrical Eng. & Systems 2020-02-11 Wenjuan Yu , Chuan Heng Foh , Atta ul Quddus , Yuanwei Liu , Rahim Tafazolli

In this paper, the performance and system complexity of the candidate multiple access (MA) techniques for the next generation of cellular systems, namely, non-orthogonal multiple access (NOMA) (in this paper, we consider power domain MA as…

Information Theory · Computer Science 2017-02-07 Mohammad. Moltafet , Nader. Mokari , Mohammad R. Javan , Paiez. Azmi

This paper introduces new approaches for combining non-orthogonal multiple access (NOMA) with distributed base station (DBS) deployments. The purpose of the study is to unlock the true potentials of DBS systems in the NOMA context, since…

Signal Processing · Electrical Eng. & Systems 2017-10-19 Joumana Farah , Antoine Kilzi , Charbel Abdel Nour , Catherine Douillard

A non-orthogonal multiple access (NOMA) empowered integrated sensing and communication (ISAC) framework is investigated. A dual-functional base station serves multiple communication users employing NOMA, while the superimposed NOMA…

Information Theory · Computer Science 2022-01-06 Zhaolin Wang , Yuanwei Liu , Xidong Mu , Zhiguo Ding , Octavia A. Dobre

In this paper, we propose bi-directional cooperative non-orthogonal multiple access (NOMA). Compared to conventional NOMA, the main contributions of bi-directional cooperative NOMA can be explained in two directions: 1) The proposed NOMA…

Information Theory · Computer Science 2018-09-18 Minseok Choi , Dong-Jun Han , Jaekyun Moon