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Currently used resource allocation methods for uplink multicarrier non-orthogonal multiple access (MC-NOMA) systems have multiple shortcomings. Current approaches either allocate the same power across all subcarriers to a user, or use…

信号处理 · 电气工程与系统科学 2025-01-22 Sagnik Bhattacharya , Kamyar Rajabalifardi , Muhammad Ahmed Mohsin , John M. Cioffi

The integration of non-orthogonal multiple access in millimeter-Wave communications (mmWave-NOMA) can significantly improve the spectrum efficiency and increase the number of users in the fifth-generation (5G) mobile communication. In this…

信息论 · 计算机科学 2018-11-08 Zhenyu Xiao , Lipeng Zhu , Zhen Gao , Dapeng Oliver Wu , Xiang-Gen Xia

A novel framework of intelligent reflecting surface (IRS)-aided multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) network is proposed, where a base station (BS) serves multiple clusters with unfixed number of users…

信息论 · 计算机科学 2020-12-02 Xinyu Gao , Yuanwei Liu , Xiao Liu , Zhijin Qin

In this letter, a low-feedback non-orthogonal multiple access (NOMA) scheme using massive multiple-input multiple-output (MIMO) transmission is proposed. In particular, the proposed scheme can decompose a massive-MIMO-NOMA system into…

信息论 · 计算机科学 2016-05-04 Zhiguo Ding , H. Vincent Poor

This paper proposes a new communication protocol for a cooperative non-orthogonal multiple access (NOMA) system. In this system, based on users' channel conditions, each two NOMA users are paired to reduce system complexity. In this…

信号处理 · 电气工程与系统科学 2018-03-29 Duc-Dung Tran , Ha-Vu Tran , Dac-Binh Ha , Georges Kaddoum

In this paper, we propose two novel cooperative-non-orthogonal-multiple-access (C-NOMA) and cooperative-rate-splitting-multiple-access (C-RSMA) schemes for uplink user cooperation. At the first mini-slot of these schemes, each user…

信息论 · 计算机科学 2022-08-02 Omid Abbasi , Halim Yanikomeroglu

Non-orthogonal multiple access (NOMA) serves multiple users by superposing their distinct message signals. The desired message signal is decoded at the receiver by applying successive interference cancellation (SIC). Using the theory of…

信息论 · 计算机科学 2016-11-14 Hina Tabassum , Ekram Hossain , Md. Jahangir Hossain

This letter introduces a novel resource allocation algorithm for achieving max-min fairness (MMF) in a rate-splitting multiple access (RSMA) empowered multi-antenna broadcast channel. Specifically, we derive the closed-form solution for the…

信息论 · 计算机科学 2023-10-31 Facheng Luo , Yijie Mao

This paper considers the joint antenna selection (AS) problem for a classical two-user MIMO non-orthogonal multiple access (NOMA) system, where both the base station (BS) and users (UEs) are equipped with multiple antennas. Specifically,…

信息论 · 计算机科学 2017-11-23 Yuehua Yu , He Chen , Yonghui Li , Zhiguo Ding , Lingyang Song , Branka Vucetic

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 this paper, cooperative non-orthogonal multiple access (C-NOMA) is considered in short packet communications with finite blocklength (FBL) codes. The performance of a decode-and-forward (DF) relaying along with selection combining (SC)…

信息论 · 计算机科学 2022-09-07 Fateme Salehi , Naaser Neda , Mohammad-Hassan Majidi , Hamed Ahmadi

Non-Orthogonal Multiple Access (NOMA) is a popular solution for supporting a high number of users and along with significant bandwidth in 5G cellular communication. By using a technique called cooperative relaying, the same data is sent to…

信号处理 · 电气工程与系统科学 2021-08-24 Moontasir Rafique , Abdullah Alavi , Aadnan Farhad , Mohammad T. Kawser

Non-orthogonal multiple access (NOMA) is considered a key technology for improving the spectral efficiency of fifth-generation (5G) and beyond 5G cellular networks. NOMA is beneficial when the channel vectors of the users are in the same…

信息论 · 计算机科学 2022-01-07 Kusuma Priya P. , Pavan Reddy M. , Abhinav Kumar

In this paper, we consider a light fidelity (LiFi)-enabled bidirectional Internet of Things (IoT) communication system, where visible light and infrared light are used in the downlink and uplink, respectively. In order to improve the energy…

信号处理 · 电气工程与系统科学 2021-12-02 Chen Chen , Shu Fu , Xin Jian , Min Liu , Xiong Deng , Zhiguo Ding

In this paper, we consider the power allocation (PA) problem in cognitive radio networks (CRNs) employing nonorthogonal multiple access (NOMA) technique. Specifically, we aim to maximize the number of admitted secondary users (SUs) and…

信息论 · 计算机科学 2017-09-18 Ming Zeng , Georgios I. Tsiropoulos , Animesh Yadav , Octavia A. Dobre , Mohamed H. Ahmed

Uplink rate-splitting multiple access (RSMA) requires optimization of decoding order and power allocation, while decoding order is a discrete variable, and it is very complex to find the optimal decoding order if the number of users is…

信息论 · 计算机科学 2023-11-28 Jiewen Hu , Gang Liu , Zheng Ma , Ming Xiao , Pingzhi Fan

Non-Orthogonal Multiple Access (NOMA) is a multiplexing technique for future wireless, which when combined with Multiple-Input Multiple-Output (MIMO) unlocks higher capacities for systems where users have varying channel strength. NOMA…

信息论 · 计算机科学 2021-07-09 Jennifer Chakravarty , Oliver Johnson , Robert Piechocki

We consider uplink power control in wireless communication when massive users compete over the channel resources. In Part I, we have formulated massive transmission power control contest in a mean-field game framework. In this part, our…

系统与控制 · 电气工程与系统科学 2020-05-11 Yuchi Wu , Junfeng Wu , Minyi Huang , Ling Shi

Future mobile communication networks will require enhanced network efficiency and reduced system overhead. Research on Blind Interference Alignment and Topological Interference Management (TIM) has shown that optimal Degrees of Freedom can…

信息论 · 计算机科学 2015-08-18 V. Kalokidou , O. Johnson , R. Piechocki

Non-orthogonal multiple access (NOMA) has attracted much recent attention owing to its capability for improving the system spectral efficiency in wireless communications. Deploying NOMA in heterogeneous network can satisfy users' explosive…

信息论 · 计算机科学 2018-01-16 Haijun Zhang , Fang Fang , Julian Cheng , Keping Long , Wei Wang , Victor C. M. Leung