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Today's wireless networks allocate radio resources to users based on the orthogonal multiple access (OMA) principle. However, as the number of users increases, OMA based approaches may not meet the stringent emerging requirements including…

信号处理 · 电气工程与系统科学 2019-02-28 Mahmoud Aldababsa , Mesut Toka , Selahattin Gokceli , Gunes Karabulut Kurt , Oguz Kucur

Active user detection in a non-orthogonal multiple access (NOMA) network is a major challenge for 5G/6G applications. However, classical algorithms that can perform this task suffer either from complexity or reduced performances. This work…

信号处理 · 电气工程与系统科学 2024-08-01 Romain Piron , Claire Goursaud

To cope with the explosive traffic growth of next-generation wireless communications, it is necessary to design next-generation multiple access techniques that can provide higher spectral efficiency as well as larger-scale connectivity. As…

信息论 · 计算机科学 2021-07-28 Xinyue Pei , Yingyang Chen , Miaowen Wen , Hua Yu , Erdal Panayirci , H. Vincent Poor

In this work, we propose a globally optimal joint successive interference cancellation (SIC) ordering and power allocation (JSPA) algorithm for the sum-rate maximization problem in downlink multi-cell non-orthogonal multiple access (NOMA)…

信息论 · 计算机科学 2021-10-26 Sepehr Rezvani , Eduard A. Jorswieck , Nader Mokari , Mohammad R. Javan

Both non-orthogonal multiple access (NOMA), which can serve multiple users simultaneously and on the same frequency, and cognitive radio (CR) can contribute to eliminating the spectrum scarcity problem. In this work, an uplink CR-based NOMA…

信息论 · 计算机科学 2023-03-01 Omer Faruk Akyol , Fethi Okta , Semiha Tedik Basaran

The superior spectral efficiency (SE) and user fairness feature of non-orthogonal multiple access (NOMA) systems are achieved by exploiting user clustering (UC) more efficiently. However, a random UC certainly results in a suboptimal…

信号处理 · 电气工程与系统科学 2020-11-17 Quang Nhat Le , Van-Dinh Nguyen , Nam-Phong Nguyen , Symeon Chatzinotas , Octavia A. Dobre , Ruiqin Zhao

In the context of quantum secure scenarios, existing research on mobile edge devices and intelligent computing and edge (ICE) systems based on the Non-Orthogonal Multiple Access (NOMA) communication model have overlooked the energy…

信息论 · 计算机科学 2026-04-30 Yongtao Yao , Wenjing Xiao , Miaojiang Chen , Anfeng Liu , Zhiquan Liu , Min Chen , Ahmed Farouk , H. Herbert Song

In this paper, a non-orthogonal multiple access (NOMA) based downlink vehicle-to-infrastructure network is considered. Particularly, we focus on the specific case of two users, one of which requires reliable road-safety-critical data…

信息论 · 计算机科学 2022-09-01 Chongtao Guo , Bin Liao

NOMA (non-orthogonal multiple access) will be seen as a promising technology for enhancing spectrum efficiency in future cellular networks. The use of unmanned aerial vehicle (UAV) Amplify-and-Forward (AF) relaying as a moving access point…

信息论 · 计算机科学 2023-04-27 Ghania Khraimech , Fatiha Merazka

In uplink non-orthogonal multiple access (NOMA) channels, the existing cooperative successive interference cancellation (SIC) and power control (PC) schemes lack the capability of achieving the full capacity region, which restricts the…

信息论 · 计算机科学 2022-02-02 Hongwu Liu , Zhiquan Bai , Hongjiang Lei , Gaofeng Pan , Kyeong Jin Kim , Theodoros A. Tsiftsis

For a massive number of devices, nonorthogonal multiple access (NOMA) has been recognized as a promising technology for improving the spectral efficiency compared to orthogonal multiple access (OMA). However, it is difficult for a base…

信息论 · 计算机科学 2019-02-07 Minseok Choi , Joongheon Kim

Non-orthogonal multiple access (NOMA) and spectrum sharing are two potential technologies for providing massive connectivity in beyond fifth-generation (B5G) networks. In this paper, we present the performance analysis of a…

信息论 · 计算机科学 2025-04-16 Vaibhav Kumar , Zhiguo Ding , Mark F. Flanagan

Non-Orthogonal Multiple Access (NOMA) has higher spectral efficiency than orthogonal multiple access (OMA) techniques. In uplink communication systems that the channel is not known at the receiver, pilot signals sent from each user in…

信息论 · 计算机科学 2020-04-28 Ahmet Emir , Ferdi Kara , Hakan Kaya

In this paper, a downlink non-orthogonal multiple access (NOMA) network is studied. We investigate the problem of jointly optimizing user pairing and beamforming design to maximize the minimum rate among all users. The considered problem…

信息论 · 计算机科学 2019-01-01 Van-Phuc Bui , Phu X. Nguyen , Hieu V. Nguyen , Van-Dinh Nguyen , Oh-Soon Shin

In this paper, we study the resource allocation problem for a single-cell non-orthogonal multiple access (NOMA) relay network where an OFDM amplify-and-forward (AF) relay allocates the spectrum and power resources to the source-destination…

网络与互联网体系结构 · 计算机科学 2016-11-15 Shuhang Zhang , Boya Di , Lingyang Song , Yonghui Li

Distributed antenna system (DAS) has been deployed for over a decade. DAS has advantages in capacity especially for the cell edge users, in both single-cell and multi-cell environments. In this paper, non-orthogonal multiple access (NOMA)…

信息论 · 计算机科学 2017-06-19 Dong-Jun Han , Minseok Choi , Jaekyun Moon

This letter studies the outage performance of cooperative non-orthogonal multiple access (NOMA) network with the help of an amplify-and-forward relay. An accurate closed-form approximation for the exact outage probability is derived. Based…

信息论 · 计算机科学 2017-03-14 Xuesong Liang , Yongpeng Wu , Derrick Wing Kwan Ng , Yiping Zuo , Shi Jin , Hongbo Zhu

Multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) cellular network is promising for supporting massive connectivity. This paper exploits low-latency machine learning in the MIMO-NOMA uplink transmission environment,…

信息论 · 计算机科学 2021-06-29 Mian Guo , Chun Shan , Mithun Mukherjee , Jaime Lloret , Quansheng Guan

Non-orthogonal multiple access (NOMA) is a promising transmission scheme employed at the physical layer to improve the spectral efficiency. In this paper, we develop a novel cross-layer approach by employing NOMA at the physical layer and…

信息论 · 计算机科学 2023-10-04 Zhonghui Mei

Non-Orthogonal Multiple Access (NOMA) is recognized today as a most promising technology for future 5G cellular networks and a large number of papers have been published on the subject over the past few years. Interestingly, none of these…

信息论 · 计算机科学 2017-10-12 Hikmet Sari , Ali Maatouk , Ersoy Caliskan , Mohamad Assaad , Mutlu Koca , Guan Gui