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This paper presents an energy-efficient indoor system integrating \ac{THz} with \ac{VLC}. \ac{THz} communication offers ultra-high-capacity links but is limited by severe path loss, atmospheric absorption, and susceptibility to blockages.…

信号处理 · 电气工程与系统科学 2026-05-25 Hanshita Prabhakar , Neetu R. R. , Vivek Ashok Bohara

Visible light communication (VLC) is a promising solution to satisfy the extreme demands of emerging applications. VLC offers bandwidth that is orders of magnitude higher than what is offered by the radio spectrum, hence making best use of…

Visible light communication (VLC) technology was introduced as a key enabler for the next generation of wireless networks, mainly thanks to its simple and low-cost implementation. However, several challenges prohibit the realization of the…

Vertical Cavity Surface Emitting Lasers (VCSELs) have gained popularity in Optical Wireless Communication (OWC) due to their high modulation bandwidth, narrow spectral width, and directional beam, offering improved spectral efficiency and…

信号处理 · 电气工程与系统科学 2025-12-11 Walter Zibusiso Ncube , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

This paper addresses the growing demand for high-bandwidth wireless data transmission by exploring Visible Light Communication (VLC) as an alternative to Radio Frequency (RF) communication. In indoor scenarios, VLC systems utilize existing…

信号处理 · 电气工程与系统科学 2025-04-18 Serkan Vela , Gokce Hacioglu

In this paper, the optimization of deploying unmanned aerial vehicles (UAVs) over a reconfigurable intelligent surfaces (RISs)-assisted visible light communication (VLC) system is studied. In the considered model, UAVs are required to…

信息论 · 计算机科学 2020-12-25 Yihan Cang , Ming Chen , Zhaohui Yang , Mingzhe Chen , Chongwen Huang

With the increasing number of user equipment (UE) and data demands, denser access points (APs) are being employed. Resource allocation problems have been extensively researched with interference treated as noise. It is well understood that…

网络与互联网体系结构 · 计算机科学 2020-04-20 Jing Li , Dongning Guo

This paper investigates energy-efficient transmission protocols in relay-assisted federated learning (FL) setup within industrial subnetworks, considering latency and power constraints. In the subnetworks, devices collaborate to train a…

信号处理 · 电气工程与系统科学 2026-03-24 Hamid Reza Hashempour , Gilberto Berardinelli , Shashi Raj Pandey , Hien Quoc Ngo

The ever-increasing demand for high data-rate applications and the proliferation of connected devices pose several theoretical and technological challenges for the fifth generation (5G) networks and beyond. Among others, this includes the…

信息论 · 计算机科学 2019-11-18 Rangeet Mitra , Paschalis. C. Sofotasios , Vimal Bhatia , Sami Muhaidat

The problem of optimal power allocation among light emitting diode (LED) transmitters in a visible light positioning (VLP) system is considered for the purpose of improving localization performance of visible light communication (VLC)…

信息论 · 计算机科学 2018-02-14 Musa Furkan Keskin , Ahmet Dundar Sezer , Sinan Gezici

Hybrid Radio Frequency/ Visible Light Communication (RF/VLC) systems have been recognized as effective means to enhance data rate. So far the study of data rate has been limited to downlink communications. In this letter, we study the…

信息论 · 计算机科学 2018-12-11 Shivanshu Shrivastava

In this paper, we study the spectral efficiency (SE) and energy efficiency (EE) of asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) for visible light communication (VLC). Firstly, we derive the…

信息论 · 计算机科学 2023-05-24 Shuai Ma , Ruixin Yang , Xiong Deng , Xintong Ling , Xun Zhang , Fuhui Zhou , Shiyin Li , Derrick Wing Kwan Ng

We are witnessing a transition to a new era where driverless cars will be pervasively connected to deliver significantly improved safety, traffic efficiency, and travel experiences. A diverse set of advanced vehicular use cases including…

信号处理 · 电气工程与系统科学 2024-09-04 Gurinder Singh , Anand Srivastava , Vivek Ashok Bohara , Md Noor-A-Rahim , Zilong Liu , Dirk Pesch

This paper investigates an indoor hybrid visible light communication (VLC) and radio frequency (RF) scenario with two-hop downlink transmission. A light emitting diode (LED) transmits both data and energy via VLC to an energy-harvesting…

信号处理 · 电气工程与系统科学 2024-10-10 Amir Hossein Fahim Raouf , Chethan Kumar Anjinappa , Ismail Guvenc

In this paper, a Deep Q-Network (DQN) based multi-agent multi-user power allocation algorithm is proposed for hybrid networks composed of radio frequency (RF) and visible light communication (VLC) access points (APs). The users are capable…

网络与互联网体系结构 · 计算机科学 2021-02-04 Bekir Sait Ciftler , Abdulmalik Alwarafy , Mohamed Abdallah , Mounir Hamdi

The rapid growth of the Internet of Things (IoT) devices in the sixth-generation (6G) wireless networks raises significant generality and scalability challenges due to energy consumption, deployment complexity, and environmental impact.…

系统与控制 · 电气工程与系统科学 2026-03-06 Boxuan Xie , Yifan Zhang , Kalle Koskinen , Alexis A. Dowhuszko , Jiacheng Wang , Ruichen Zhang , Zehui Xiong , Dusit Niyato , Zhu Han , Riku Jäntti

This paper investigates the system outage performance of a useful architecture of two-way hybrid visible light communication/radio frequency (VLC/RF) communication using overlay mode of cooperative cognitive radio network (CCRN). The demand…

网络与互联网体系结构 · 计算机科学 2022-05-31 Sutanu Ghosh , Mohamed-Slim Alouini

In this paper, we consider an indoor downlink dual-hop hybrid visible light communication (VLC)/radio frequency (RF) scenario. For each transmission block, we dynamically allocate a portion of time resources to VLC and the other portion to…

信息论 · 计算机科学 2022-11-22 Amir Hossein Fahim Raouf , Chethan Kumar Anjinappa , Ismail Guvenc

Large-scale distributed antenna systems with many access points (APs) that serve the users by coherent joint transmission is being considered for 5G-and-beyond networks. The technology is called Cell-free Massive MIMO and can provide a more…

信息论 · 计算机科学 2020-06-30 Trinh Van Chien , Emil Björnson , Erik G. Larsson

This paper proposes a novel power-efficient light-emitting diode (LED) placement algorithm for indoor visible light communication (VLC). In the considered model, the LEDs can be designedly placed for high power efficiency while satisfying…

信号处理 · 电气工程与系统科学 2020-12-30 Yang Yang , Zhiyu Zhu , Caili Guo , Chunyan Feng