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This paper addresses the challenge of co-channel interference and intentional jamming in low-altitude air-ground communications. Since conventional fixed-position antenna (FPA) systems lack spatial adaptability to dynamically balance signal…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Yifan Guo , Junshan Luo , Fanggang Wang , Haiyang Ding , Shilian Wang , Zhenhai Xu

Sixth-generation (6G) networks are expected to provide ubiquitous connectivity across terrestrial and non-terrestrial domains. This will be possible by integrating non-terrestrial networks (NTNs) to extend coverage to underserved areas.…

Networking and Internet Architecture · Computer Science 2026-04-07 Alfredo Nunez-Unda , Angelo Vera-Rivera , Nuwan Balasuriya , Ekram Hossain

In this article, we investigate the robust beamforming design for a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided downlink rate-splitting multiple access (RSMA) communication system, where both…

Signal Processing · Electrical Eng. & Systems 2025-08-08 Ziyue Wang , Xiaoyan Ma , Xingyu Peng , Zheao Li , Jinyuan Liu , Yongliang Guan , Chau Yuen

Despite the widespread deployment of terrestrial networks, providing reliable communication services to remote areas and maintaining connectivity during emergencies remains challenging. Low Earth orbit (LEO) satellite constellations offer…

Networking and Internet Architecture · Computer Science 2025-09-17 Zifan Lang , Guixia Liu , Geng Sun , Jiahui Li , Jiacheng Wang , Weijie Yuan , Dusit Niyato , Dong In Kim

The integration of non-terrestrial networks (NTNs), which include high altitude platform (HAP) stations and intelligent reflecting surfaces (IRS) into communication infrastructures has become a crucial area of research to address the…

Numerical Analysis · Mathematics 2025-11-04 Shunyuan Shang , Emna Zedini , Mohamed-Slim Alouini

Integrated terrestrial and non-terrestrial networks (ITNTNs) are envisioned as a key paradigm for sixth-generation (6G) wireless systems, enabling seamless global connectivity. In this paper, we investigate a dual-aerial active…

Signal Processing · Electrical Eng. & Systems 2026-04-15 Vangara Saiprudhvi , Keshav Singh , Hariharan Subramaniyam , Chih-Peng Li

Heterogeneous Networks (HetNets) are known to enhance the bandwidth efficiency and throughput of wireless networks by more effectively utilizing the network resources. However, the higher density of users and access points in HetNets…

Networking and Internet Architecture · Computer Science 2016-11-15 Hani Mehrpouyan , Michail Matthaiou , Rui Wang , George K. Karagiannidis , Yingbo Hua

Reconfigurable intelligent surfaces (RISs) are considered as potential technologies for the upcoming sixth-generation (6G) wireless communication system. Various benefits brought by deploying one or multiple RISs include increased spectrum…

Signal Processing · Electrical Eng. & Systems 2021-04-16 Jiguang He , Nhan Thanh Nguyen , Rafaela Schroeder , Visa Tapio , Joonas Kokkoniemi , Markku Juntti

Technology forecasts anticipate a new era in which massive numbers of humans, machines, and things are connected to wireless networks to sense, process, act, and communicate with the surrounding environment in a real-time manner. To make…

Information Theory · Computer Science 2023-01-27 Howon Lee , Byungju Lee , Heecheol Yang , Junghyun Kim , Seungnyun Kim , Wonjae Shin , Byonghyo Shim , H. Vincent Poor

The classical approach of avoiding or ignoring interference in wireless networks cannot accommodate the ambitious quality-of-service demands of ultra-dense cellular networks (CNs). However, recent ground-breaking information-theoretic…

Networking and Internet Architecture · Computer Science 2020-08-14 Abdulkadir Celik , Anas Chaaban , Basem Shihada , Mohamed-Slim Alouini

Integrated sensing and communication (ISAC) has been envisioned as a promising technology to tackle the spectrum congestion problem for future networks. In this correspondence, we investigate to deploy a reconfigurable intelligent surface…

Signal Processing · Electrical Eng. & Systems 2022-08-04 Honghao Luo , Rang Liu , Ming Li , Yang Liu , Qian Liu

In this paper, we propose a novel wireless architecture, mounted on a high-altitude aerial platform, which is enabled by reconfigurable intelligent surface (RIS). By installing RIS on the aerial platform, rich line-of-sight and full-area…

Signal Processing · Electrical Eng. & Systems 2022-02-03 Hong-Bae Jeon , Sung-Ho Park , Jaedon Park , Kaibin Huang , Chan-Byoung Chae

This paper presents a study of an integrated satellite-terrestrial network, where Low-Earth-Orbit (LEO) satellites are used to provide the backhaul link between base stations (BSs) and the core network. The mobility of LEO satellites raises…

Signal Processing · Electrical Eng. & Systems 2023-03-21 Hung Nguyen-Kha , Vu Nguyen Ha , Eva Lagunas , Symeon Chatzinotas , Joel Grotz

Current fifth generation (5G) cellular networks mainly focus on the terrestrial scenario. Due to the difficulty of deploying communications infrastructure on the ocean, the performance of existing maritime communication networks (MCNs) is…

Signal Processing · Electrical Eng. & Systems 2021-03-04 Xiangling Li , Wei Feng , Jue Wang , Yunfei Chen , Ning Ge , Cheng-Xiang Wang

The sixth generation (6G) wireless networks aim to achieve ultra-high data transmission rates, very low latency and enhanced energy-efficiency. To this end, terahertz (THz) band is one of the key enablers of 6G to meet such requirements.…

Signal Processing · Electrical Eng. & Systems 2024-10-07 Ahmet M. Elbir , Kumar Vijay Mishra , Symeon Chatzinotas , Mehdi Bennis

Intelligent reflecting surface (IRS) is a new and promising paradigm to substantially improve the spectral and energy efficiency of wireless networks, by constructing favorable communication channels via tuning massive low-cost passive…

Information Theory · Computer Science 2021-05-18 Jiangbin Lyu , Rui Zhang

The unmanned aerial vehicle (UAV)-based wireless mesh networks can economically provide wireless services for the areas with disasters. However, the capacity of air-to-air communications is limited due to the multi-hop transmissions. In…

Robotics · Computer Science 2023-11-28 Zhiqing Wei , Zijun Guo , Zhiyong Feng , Jialin Zhu , Caijun Zhong , Qihui Wu , Huici Wu

The revolutionary technology of \emph{Stacked Intelligent Metasurfaces (SIM)} has been recently shown to be capable of carrying out advanced signal processing directly in the native electromagnetic (EM) wave domain. An SIM is fabricated by…

Information Theory · Computer Science 2023-05-16 Jiancheng An , Chao Xu , Derrick Wing Kwan Ng , George C. Alexandropoulos , Chongwen Huang , Chau Yuen , Lajos Hanzo

Spectrum sharing between terrestrial 5G and incumbent networks in the satellite bands presents a promising avenue to satisfy the ever-increasing bandwidth demand of the next-generation wireless networks. However, protecting incumbent…

Networking and Internet Architecture · Computer Science 2024-02-16 Ta Seen Reaz Niloy , Zoheb Hasan , Rob Smith , Vikram R. Anapana , Vijay K. Shah

This paper integrates non-orthogonal multiple access (NOMA) and over-the-air federated learning (AirFL) into a unified framework using one simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS). The STAR-RIS…

Information Theory · Computer Science 2022-07-08 Wanli Ni , Yuanwei Liu , Yonina C. Eldar , Zhaohui Yang , Hui Tian