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In this paper, we study an application of deep learning to uplink multiuser detection (MUD) for non-orthogonal multiple access (NOMA) scheme based on Welch bound equality spread multiple access (WSMA). Several non-cooperating users, each…

信息论 · 计算机科学 2020-11-25 Krishna Chitti , Joao Vieira , Behrooz Makki

In this paper, the impact of imperfect channel state information (CSI) on a downlink coordinated multipoint (CoMP) transmission system with non-orthogonal multiple access (NOMA) is investigated since perfect knowledge of a channel can not…

信息论 · 计算机科学 2020-07-16 Fahri Wisnu Murti , Rahmat Faddli Siregar , Muhammad Royyan , Soo Young Shin

This paper proposes a novel hybrid-domain (HD) non-orthogonal multiple access (NOMA) approach to support a larger number of uplink users than the recently proposed code-domain NOMA approach, i.e., sparse code multiple access (SCMA). HD-NOMA…

信号处理 · 电气工程与系统科学 2020-07-28 Chen Quan , Animesh Yadav , Baocheng Geng , Pramod K. Varshney , H. Vincent Poor

A new multiple access (MA) strategy, referred to as non orthogonal multiple access - Relevant (NOMA-R), allows selecting NOMA when this increases all individual rates, i.e., it is beneficial for both strong(er) and weak(er) individual…

信号处理 · 电气工程与系统科学 2020-04-24 Mylene Pischella , Arsenia Chorti , Inbar Fijalkow

Uplink (UL) dominated sporadic transmission and stringent latency requirement of massive machine type communication (mMTC) forces researchers to abandon complicated grant-acknowledgment based legacy networks. UL grant-free non-orthogonal…

信号处理 · 电气工程与系统科学 2020-10-02 Shah Mahdi Hasan , Kaushik Mahata , Md Mashud Hyder

In this study, we propose a novel machine learning based algorithm to improve the performance of beyond 5 generation (B5G) wireless communication system that is assisted by Orthogonal Frequency Division Multiplexing (OFDM) and…

网络与互联网体系结构 · 计算机科学 2022-01-19 Jafar Norolahi , Paeiz Azmi

In this paper, we present noise-domain non-orthogonal multiple access (ND-NOMA), an innovative communication scheme that utilizes the modulation of artificial noise mean and variance to convey information. Distinct from traditional methods…

信息论 · 计算机科学 2025-10-01 Erkin Yapici , Yusuf Islam Tek , Ertugrul Basar

In this contribution, the optimization of power proportion allocated for each user in the downlink (DL) non-orthogonal multiple access (NOMA) systems have been developed. Successive interference cancellation (SIC) technique recovers users'…

信号处理 · 电气工程与系统科学 2020-01-14 Jaime Laelson Jacob , Taufik Abrao

Non-orthogonal multiple access (NOMA) systems can serve multiple users in contrast to orthogonal multiple-access (OMA), which makes use of the limited time or frequency domain resources. It can help to address the unprecedented…

信号处理 · 电气工程与系统科学 2023-06-13 Syed Agha Hassnain Mohsan , Yanlong Li

This article focuses on the application of artificial intelligence (AI) in non-orthogonal multiple-access (NOMA), which aims to achieve automated, adaptive, and high-efficiency multi-user communications towards next generation multiple…

信息论 · 计算机科学 2022-12-14 Xiaoxia Xu , Yuanwei Liu , Xidong Mu , Qimei Chen , Hao Jiang , Zhiguo Ding

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

Orthogonal frequency division multiplexing (OFDM) based non-orthogonal multiple access (NOMA) has increased complexity and reduced spectral efficiency in visible light communications (VLC) NOMA compared to radiofrequency NOMA due to…

信号处理 · 电气工程与系统科学 2020-11-24 T. Uday , Abhinav Kumar , L. Natarajan

In recent years, Non-Orthogonal Multiple Access (NOMA) system has emerged as a promising candidate for multiple access frameworks due to the evolution of deep machine learning, trying to incorporate deep machine learning into the NOMA…

人工智能 · 计算机科学 2026-01-21 WooSeok Kim , Jeonghoon Lee , Sangho Kim , Taesun An , WonMin Lee , Dowon Kim , Kyungseop Shin

In this paper, we study a layered random access scheme based on non-orthogonal multiple access (NOMA) to improve the throughput of multichannel ALOHA. At a receiver, successive interference cancellation (SIC) is carried out across layers to…

信息论 · 计算机科学 2017-12-11 Jinho Choi

In 5G and next-generation mobile ad-hoc networks, reliable handover is a key requirement, which guarantees continuity in connectivity, especially for mobile users and in high-density scenarios. However, conventional handover triggers based…

网络与互联网体系结构 · 计算机科学 2026-01-07 Sumita Majhi , Kaushal Shelke , Pinaki Mitra

Future mobile communication networks will require enhanced network efficiency and reduced system overhead due to their user density and high data rate demanding applications of the mobile devices. Research on Blind Interference Alignment…

信息论 · 计算机科学 2015-10-01 Vaia Kalokidou , Oliver Johnson , Robert Piechocki

Achieving significant performance gains both in terms of system throughput and massive connectivity, non-orthogonal multiple access (NOMA) has been considered as a very promising candidate for future wireless communications technologies. It…

网络与互联网体系结构 · 计算机科学 2021-08-31 Zeyad Elsaraf , Faheem A. Khan , Qasim Zeeshan Ahmed

Non-orthogonal multiple access (NOMA) has emerged as a novel air interface technology for massive connectivity in sixth-generation (6G) era. The recent integration of NOMA in backscatter communication (BC) has triggered significant research…

信号处理 · 电气工程与系统科学 2021-11-23 Wali Ullah Khan , Furqan Jameel , Asim Ihsan , Omer Waqar , Manzoor Ahmed

As it has been discussed in the first part of this work, the utilization of advanced multiple access protocols and the joint optimization of the communication and computing resources can facilitate the reduction of delay for wireless…

信息论 · 计算机科学 2021-04-27 Pavlos S. Bouzinis , Panagiotis D. Diamantoulakis , George K. Karagiannidis

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