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相关论文: STAR-RIS-aided NOMA for Secured xURLLC

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Intelligent reflecting surface (IRS) is a promising technology to enhance the coverage and performance of wireless networks. We consider the application of IRS to non-orthogonal multiple access (NOMA), where a base station transmits…

信息论 · 计算机科学 2021-01-29 Xinwei Yue , Yuanwei Liu

Intelligent Reflecting Surfaces (IRS) enhance spectral efficiency by adjusting reflection phase shifts, while Non-Orthogonal Multiple Access (NOMA) increases system capacity. Consequently, IRS-assisted NOMA communications have garnered…

密码学与安全 · 计算机科学 2025-06-09 Linlin Liang , Zongkai Tian , Haiyan Huang , Xiaoyan Li , Zhisheng Yin , Dehua Zhang , Nina Zhang , Wenchao Zhai

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…

信息论 · 计算机科学 2020-01-14 Tianwei Hou , Yuanwei Liu , Zhengyu Song , Xin Sun , Yue Chen

Intelligent reflecting surface (IRS)-enabled backscatter communications can be enabled by an access point (AP) that splits its transmit signal into modulated and unmodulated parts. This letter integrates non-orthogonal multiple access…

信息论 · 计算机科学 2022-09-07 Azar Hakimi , Shayan Zargari , Chintha Tellambura , Sanjeewa Herath

To design an efficient interference management and multiple access scheme for visible light communication (VLC) network, this letter leverages the non-orthogonal multiple access (NOMA), which has received significant attention in the…

信息论 · 计算机科学 2016-10-25 Xiaoke Zhang , Qian Gao , Chen Gong , Zhengyuan Xu

A novel integrated sensing and communication (ISAC) system is proposed, where a dual-functional base station is utilized to transmit the superimposed non-orthogonal multiple access (NOMA) communication signal for serving communication users…

信息论 · 计算机科学 2022-10-07 Jiakuo Zuo , Yuanwei Liu , Chenming Zhu , Yixuan Zou , Dengyin Zhang , Naofal Al-Dhahir

We consider a downlink multiuser visible light communications (VLC) network where users randomly change their location and vertical orientation. The non-orthogonal multiple access (NOMA) strategy is adopted to serve multiple users…

信息论 · 计算机科学 2019-02-27 Yavuz Yapici , Ismail Guvenc

Intelligent reflecting surface (IRS) is a promising technique to extend the network coverage and improve spectral efficiency. This paper investigates an IRS-assisted terahertz (THz) multiple-input multiple-output (MIMO)-nonorthogonal…

信息论 · 计算机科学 2023-06-13 Jinlei Xu , Zhengyu Zhu , Zheng Chu , Hehao Niu , Pei Xiao , Inkyu Lee

This paper considers a downlink non-orthogonal multiple access (NOMA) system where the source intends to transmit independent information to the users at targeted data rates under statistical channel state information at the transmitter.…

信息论 · 计算机科学 2015-07-17 Sulong Shi , Longxiang Yang , Hongbo Zhu

The key idea of non-orthogonal multiple access (NOMA) is to serve multiple users simultaneously at the same time and frequency, which can result in excessive multiple-access interference. As a crucial component of NOMA systems, successive…

信息论 · 计算机科学 2020-05-21 Z. Ding , R. Schober , H. V. Poor

Non-orthogonal multiple access (NOMA) and spectrum sharing (SS) are two emerging multiple access technologies for efficient spectrum utilization in the fifth-generation (5G) wireless communications standard. In this paper, we present a…

信息论 · 计算机科学 2018-09-25 Vaibhav Kumar , Barry Cardiff , Mark. F. Flanagan

The proliferation of mobile Internet and connected devices, offering a variety of services at different levels of performance, represents a major challenge for the fifth generation wireless networks and beyond. This requires a paradigm…

Intelligent reflecting surface (IRS) as a promising technology rendering high throughput in future communication systems is compatible with various communication techniques such as non-orthogonal multiple-access (NOMA). In this paper, the…

信息论 · 计算机科学 2022-03-17 Yasaman Omid , S. M. Mahdi Shahabi , Cunhua Pan , Yansha Deng , Arumugam Nallanathan

Ambient backscatter communication (BackCom) is faced with the challenge that a single BackCom device can occupy multiple orthogonal resource blocks unintentionally. As a result, in order to avoid co-channel interference, a conventional…

信息论 · 计算机科学 2021-06-01 Zhiguo Ding , H. Vincent Poor

Non-orthogonal multiple access (NOMA) scheme enables serving users with the same resource block i.e. frequency or time by multiplexing the signal of the users. Intelligent reflecting surfaces (IRS) or reconfigurable intelligent surfaces…

信号处理 · 电气工程与系统科学 2022-11-24 Mobasshir Mahbub , Raed M. Shubair

This letter investigates the secure communication in a reconfigurable intelligent surface (RIS)-aided multiuser massive multiple-input multiple-output (MIMO) system exploiting artificial noise (AN). We first derive a closed-form expression…

信息论 · 计算机科学 2023-01-11 Dan Yang , Jindan Xu , Wei Xu , Yongming Huang , Zhaohua Lu

Reconfigurable Intelligent Surface (RIS) technology has emerged as a transformative solution for enhancing satellite networks in next-generation wireless communication. The integration of RIS in satellite networks addresses critical…

新兴技术 · 计算机科学 2025-02-25 Wali Ullah Khan , Eva Lagunas , Symeon Chatzinotas

In this paper, we investigate covert communications in a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-aided rate-splitting multiple access (RSMA) system. Under the RSMA principles, the messages…

信息论 · 计算机科学 2023-12-05 Heng Chang , Hai Yang , Shuobo Xu , Xiyu Pang , Hongwu Liu

This letter analyzes the ergodic rates of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system, where the direct links from the base station to…

信息论 · 计算机科学 2022-07-26 Boqun Zhao , Chao Zhang , Wenqiang Yi , Yuanwei Liu

In this paper, we propose a deep state-action-reward-state-action (SARSA) $\lambda$ learning approach for optimising the uplink resource allocation in non-orthogonal multiple access (NOMA) aided ultra-reliable low-latency communication…

信息论 · 计算机科学 2022-01-19 Waleed Ahsan , Wenqiang Yi , Yuanwei Liu , Arumugam Nallanathan
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