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Due to the emergence of new paradigms and services such as 5G/6G, IoT, and more, current deployed wired Data Center Networks (DCNs) are not meeting the required performance metrics due to their limited reconfigurability, scalability, and…

Networking and Internet Architecture · Computer Science 2022-03-22 Abrar S. Alhazmi , Sanaa H. Mohamed , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

Underwater object detection (UOD), aiming to identify and localise the objects in underwater images or videos, presents significant challenges due to the optical distortion, water turbidity, and changing illumination in underwater scenes.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Long Chen , Yuzhi Huang , Junyu Dong , Qi Xu , Sam Kwong , Huimin Lu , Huchuan Lu , Chongyi Li

Due to their numerous advantages, communications over multicarrier schemes constitute an appealing approach for broadband wireless systems. Especially, the strong penetration of orthogonal frequency division multiplexing (OFDM) into the…

Information Theory · Computer Science 2013-07-15 Alphan Şahin , Ismail Güvenç , Hüseyin Arslan

The colossal evolution of wireless communication technologies over the past few years has driven increased interest in its integration in a variety of less-explored environments, such as the underwater medium. In this magazine paper, we…

Networking and Internet Architecture · Computer Science 2023-07-25 Waqas Aman , Flavio Giorgi , Giulio Attenni , Saif Al-Kuwari , Elmehdi Illi , Marwa Qaraqe , Gaia Maselli , Roberto Di Pietro

Current fifth-generation (5G) networks do not cover maritime areas, causing difficulties in developing maritime Internet of Things (IoT). To tackle this problem, we establish a nearshore network by collaboratively using on-shore terrestrial…

Information Theory · Computer Science 2022-08-19 Xinran Fang , Wei Feng , Yanmin Wang , Yunfei Chen , Ning Ge , Zhiguo Ding

The orbital angular momentum (OAM) technique provides a new degree of freedom for information transmissions in millimeter wave communications. Considering the spatial distribution characteristics of OAM beams, a new OAM spatial modulation…

Networking and Internet Architecture · Computer Science 2016-12-19 Xiaohu Ge , Ran Zi , Xusheng Xiong , Qiang Li , Liang Wang

The coexistence of different wireless communication systems such as LTE and Wi-Fi by sharing the unlicensed band is well studied in the literature. In these studies, various methods are proposed to support the coexistence of systems,…

Signal Processing · Electrical Eng. & Systems 2020-09-03 Mehmet Mert Şahin , Hüseyin Arslan

In this paper, we design a novel high-throughput random access scheme for an indoor optical wireless communication (OWC) massive Internet of Things (IoT) scenario. Due to the large density of both IoT devices and OWC access points (APs), we…

Signal Processing · Electrical Eng. & Systems 2020-04-20 Dejan Vukobratovic , Francisco J. Escribano

Consider the cellular downlink Orthogonal Frequency Division Multiple Access (OFDMA) system where a single transmitter transmits signals to multiple receivers on multiple discrete subcarriers. To adapt fast channel fluctuations, the…

Information Theory · Computer Science 2016-11-17 Ya-Feng Liu

Ultra-reliable underwater acoustic (UWA) communications serve as one of the key enabling technologies for future space-air-ground-underwater integrated networks. However, the reliability of current UWA transmission is still insufficient…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Xuehan Wang , Hengyu Zhang , Jintao Wang , Zhi Sun , Bo Ai

We demonstrate a technique for ultrastable optical frequency dissemination in a branching passive optical network using code-division multiple access (CDMA). In our protocol, each network user employs a unique pseudo-random sequence to…

This paper proposes and demonstrates a PHY-layer design of a real-time prototype that supports Ultra-Reliable Communication (URC) in wireless infrastructure networks. The design makes use of Orthogonal Frequency Division Multiple Access…

Networking and Internet Architecture · Computer Science 2021-09-03 Jiaxin Liang , Soung Chang Liew

Reliable communication is a challenge in a very noisy RF channel further corrupted by severe, multiple narrowband interference. Code Division Multiple Access (CDMA) is a widely used method to both mitigate such interference and support…

Information Theory · Computer Science 2014-10-20 Dave Clites , Richard Orr , Jack Rieser , Michael Dellomo

Localization defines a term to describe the identifying process of a location within the space of two-dimensional (2D) space or three-dimensional (3D). A localization scheme is an important concern for connecting sensor nodes in remote…

Signal Processing · Electrical Eng. & Systems 2019-08-26 Md Tanvir Hossan

Optical wireless communication (OWC) meets the demands of the future six-generation mobile network (6G) as it operates at several hundreds of Terahertz and has the potential to enable data rate in the order of Tbps. However, most beam…

Signal Processing · Electrical Eng. & Systems 2021-10-12 Mingliang Xiong , Qingwen Liu , Xin Wang , Shengli Zhou , Bin Zhou , Zhiyong Bu

Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier modulation technique which is very much popular in new wireless networks of IEEE standard, digital television, audio broadcasting and 4G mobile communications. The main…

Networking and Internet Architecture · Computer Science 2013-09-30 Ankit Chadha , Neha Satam , Beena Ballal

Polynomial-cancellation-coded orthogonal frequency division multiplexing (PCC-OFDM) is a form of OFDM that has waveforms which are very well localized in both the time and frequency domains and so it is ideally suited for use in the 5G…

Signal Processing · Electrical Eng. & Systems 2018-10-12 Gayathri Kongara , Lei Yang , Cuiwei He , Jean Armstrong

In this paper, we consider a single-cell multi-user orthogonal frequency division multiple access (OFDMA) network with one unmanned aerial vehicle (UAV), which works as an amplify-and-forward relay to improve the quality-of-service (QoS) of…

Information Theory · Computer Science 2021-04-23 Shuhao Zeng , Hongliang Zhang , Boya Di , Lingyang Song

An important challenge of wireless networks is to boost the cell edge performance and enable multi-stream transmissions to cell edge users. Interference mitigation techniques relying on multiple antennas and coordination among cells are…

Information Theory · Computer Science 2016-11-17 Bruno Clerckx , Heunchul Lee , Young-Jun Hong , Gil Kim

Wireless covert channels promise to exfiltrate information with high bandwidth by circumventing traditional access control mechanisms. Ideally, they are only accessible by the intended recipient and---for regular system…

Networking and Internet Architecture · Computer Science 2015-05-06 Jiska Classen , Matthias Schulz , Matthias Hollick
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