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Efficient computation offloading in multi-UAV edge networks becomes particularly challenging in dense urban areas, where line-of-sight (LoS) links are frequently blocked and user demand varies rapidly. Reconfigurable intelligent surfaces…

系统与控制 · 电气工程与系统科学 2026-03-24 Liangshun Wu , Jianbo Du , Junsuo Qu

Enhanced mobile broadband (eMBB) and ultrareliable and low-latency communications (URLLC) are two major expected services in the fifth-generation mobile communication systems (5G). Specifically, eMBB applications support extremely high data…

信息论 · 计算机科学 2021-09-14 Qimei Chen , Jiajia Wang , Hao Jiang

Migrating computational intensive tasks from mobile devices to more resourceful cloud servers is a promising technique to increase the computational capacity of mobile devices while saving their battery energy. In this paper, we consider a…

网络与互联网体系结构 · 计算机科学 2016-11-15 Stefania Sardellitti , Gesualdo Scutari , Sergio Barbarossa

This paper proposes a new robust optimization (RO) formulation namely the RO under objective functional uncertainty (ObRO). The ObRO adopts a min-max structure where the inner problem finds the worst-case objective function in a continuous…

最优化与控制 · 数学 2026-05-19 Yue Song , Yuxi Lu , Gang Li , Kairui Feng , Qi Liu

The increasing demand for Internet of Things (IoT) applications has accelerated the need for robust resource allocation in sixth-generation (6G) networks. In this paper, we propose a reconfigurable intelligent surface (RIS)-assisted upper…

信号处理 · 电气工程与系统科学 2026-02-03 Muddasir Rahim , Soumaya Cherkaoui

In this paper, we study resource allocation for multiuser multiple-input single-output secondary communication systems with multiple system design objectives. We consider cognitive radio networks where the secondary receivers are able to…

信息论 · 计算机科学 2015-04-24 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

In this paper, we study the transmission strategy of a ground-based beyond diagonal reconfigurable intelligent surface (BD-RIS), a.k.a RIS 2.0, in a network where multiple unmanned aerial vehicles (UAVs) simultaneously transmit signals to…

信号处理 · 电气工程与系统科学 2023-12-18 Aamer Mohamed Huroon , Yu-Chih Huang , Li-Chun Wang

In this paper, we propose a state-of-the-art downlink communication transceiver design for transmissive reconfigurable metasurface (RMS)-enabled simultaneous wireless information and power transfer (SWIPT) networks. Specifically, a feed…

信号处理 · 电气工程与系统科学 2022-12-13 Zhendong Li , Wen Chen , Ziheng Zhang , Qingqing Wu , Huanqing Cao , Jun Li

Rate-Splitting Multiple Access (RSMA) is an emerging flexible and powerful multiple access for downlink multiantenna networks. In this paper, we introduce the concept of RSMA into short-packet downlink communications. We design optimal…

信息论 · 计算机科学 2022-07-13 Yunnuo Xu , Yijie Mao , Onur Dizdar , Bruno Clerckx

We study joint unicast and multigroup multicast transmission in single-cell massive multiple-input-multiple-output (MIMO) systems, under maximum ratio transmission. For the unicast transmission, the objective is to maximize the weighted sum…

信息论 · 计算机科学 2022-01-03 Meysam Sadeghi , Emil Björnson , Erik G. Larsson , Chau Yuen , Thomas L. Marzetta

Enabling ultra-reliable and low-latency communication services while providing massive connectivity is one of the major goals to be accomplished in future wireless communication networks. In this paper, we investigate the performance of a…

信息论 · 计算机科学 2022-10-21 Yao Zhu , Xiaopeng Yuan , Yulin Hu , Tong Wang , M. Cenk Gursoy , Anke Schmeink

How to provide information security while fulfilling ultra reliability and low-latency requirements is one of the major concerns for enabling the next generation of ultra-reliable and low-latency communications service (xURLLC), specially…

信息论 · 计算机科学 2023-03-09 Yao Zhu , Xiaopeng Yuan , Yulin Hu , Rafael F. Schaefer , Anke Schmeink

This paper aims to explore reconfigurable intelligent surface (RIS) integration in a millimeter wave (mmWave) communication system with low-complexity transceiver architecture under imperfect CSI assumption. Towards this, we propose a…

信息论 · 计算机科学 2024-02-08 Kali Krishna Kota , Praful D. Mankar

We consider the combination of uplink code-domain non-orthogonal multiple access (NOMA) with massive multiple-input multiple-output (MIMO) and reconfigurable intelligent surfaces (RISs). We assume a setup in which the base station (BS) is…

信息论 · 计算机科学 2022-02-22 Bashar Tahir , Stefan Schwarz , Markus Rupp

In this paper, we consider the power minimization problem of joint physical resource block (PRB) assignment and transmit power allocation under specified delay and reliability requirements for ultra-reliable and low-latency communication…

信息论 · 计算机科学 2020-02-11 Jing Cheng , Chao Shen , Shuqiang Xia

A critical concern within the realm of visible light communications (VLC) pertains to enhancing system data rate, particularly in scenarios where the direct line-of-sight (LoS) connection is obstructed by obstacles. The deployment of…

信息论 · 计算机科学 2024-01-08 Omar Maraqa , Sylvester Aboagye , Telex M. N. Ngatched

By flexibly manipulating the radio propagation environment, reconfigurable intelligent surface (RIS) is a promising technique for future wireless communications. However, the single-side coverage and double-fading attenuation faced by…

信息论 · 计算机科学 2023-02-01 Ailing Zheng , Wanli Ni , Wen Wang , Hui Tian

This paper studies RIS-aided cell-free massive MIMO systems, where multiple RISs are deployed to assist the communication between multiple access points (APs) and multiple users, with either continuous or discrete phase shifts at the RISs.…

信息论 · 计算机科学 2021-12-14 Si-Nian Jin , Dian-Wu Yue , Ha H. Nguyen

This letter focuses on the non-convex joint optimization with a dynamic resource of multi-user for an intelligent reflecting surface-enhanced mmWave system, where all users are concentrated on the unique cluster beam. Firstly, the objective…

信号处理 · 电气工程与系统科学 2020-11-18 Qingfeng Ding , Xinpeng Gao , Zexiang Wu

Indoor multi-robot communications face two key challenges: one is the severe signal strength degradation caused by blockages (e.g., walls) and the other is the dynamic environment caused by robot mobility. To address these issues, we…

机器人学 · 计算机科学 2022-07-19 Ruyu Luo , Wanli Ni , Hui Tian , Julian Cheng