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检索条件"任意字段=14th International Conference on COMmunication Systems and NETworkS, COMSNETS 2022"

共 2074 条记录，以下是51-60 订阅

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SonicGlass: An Obstacle Detection and Navigation System Using Smartglass-Based Ultrasonic Sensors 16

SonicGlass: An Obstacle Detection and Navigation System Usin...

引用

16th international conference on communication systems and networks, comsnets 2024

作者： Kusneniwar, Hrishikesh Govindrao Ghosh, Surjya Sen, Sougata Bits Pilani Dept. of Computer Science and Information Systems Goa campus India

ISBN: (纸本)9798350383119

Enabling continuous obstacle detection and providing real-time navigational assistance for people with visual impairment allows them to navigate in an indoor space without dependence on others. In this paper, we present the design, development, and evaluation of SonicGlass, a wearable obstacle detection and indoor navigation system. SonicGlass consists of a custom 3D printed wearable smartglass that can replace the individual's existing smartglasses. the smartglass is embedded with multiple sensors and microcontrollers. We performed a user study with 10 participants to determine the performance of SonicGlass and observed that SonicGlass could easily guide individuals in an indoor space while detecting obstacles with an F1-score of 84.7% (at 100% precision), and yielded a localization error of 1.35 meters when using a very simplistic regression model. Overall, SonicGlass can be a helpful tool for people with visual impairment to navigate in indoor spaces without assistance. © 2024 IEEE.

关键词： Accessibility Indoor Navigation Obstacle Detection smartglass Wearable Sensing

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Experimental research on image transmission over one hundred metres with limited bandwidth in a semantic ultraviolet communication system 14

Experimental research on image transmission over one hundred...

引用

14th international Symposium on communication systems, networks and Digital Signal Processing (CSNDSP)

作者： Chen, Xukun Han, Dahai Zhang, Min Ren, Tianzheng Wan, Tongtong Beijing Univ Posts & Telecommun State Key Lab Informat Photon & Opt Commun Beijing Peoples R China

ISBN: (纸本)9798350348750;9798350348743

Currently, ultraviolet (UV) communication is proposed for use in electromagnetic interference environments, while the efficient transmission of images with limited bandwidth has posed a persistent challenge. this paper introduces an light emitting diode-based UV communication system combined with semantic compression for image transmission. the experimental results show that the proposed semantic ultraviolet communication (SUC) system could transmit a 7.19 MB image to a file of approximately 304 KB bandwidth with the aid of deep learning. In addition, we calculated the SSIM (structure similarity index measure) and the PSNR (peak signal-to-noise ratio) to assess the robustness of the SUC system. the experimental results demonstrated that the system could work well over 100 metres while sending images with good quality in the face of error bits interference.

关键词： UV communication semantic communication deep learning

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Experimental Research on Image Transmission with High Compressive Rate in a Semantic Visible Light communication System 14

Experimental Research on Image Transmission with High Compre...

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14th international Symposium on communication systems, networks and Digital Signal Processing (CSNDSP)

作者： Liu, Sihang Liu, Yanzehua Zhang, Min Han, Dahai Rong, Jiaqi Beijing Univ Posts & Telecommun State Key Lab Informat Photon & Opt Commun Beijing Peoples R China China Elect Engn Design Inst Assessment Ctr Energy Saving & Green Dev Beijing Peoples R China

ISBN: (纸本)9798350348750;9798350348743

In this paper, we introduce an image compression technique for semantic communication to optimize the bandwidth constraint in visible light communication (VLC) systems and improve the ease of deployment of the system owing to the high tolerance and fidelity of semantic communication systems. the generalized communication rate was boosted to 400 Mbps by transmitting 400-Mb-sized random images through a physical visible light channel with a single blue LED and the orthogonal frequency-division multiplexing format using 16 quadrature amplitude modulation-orthogonal frequency-division multiplexing at a communication rate of 50 Mbps in an indoor space of 3 m. the proposed semantic VLC (S-VLC) system remained stable and exhibited high efficiency at a bit error rate (BER) of 3x10-6. Furthermore, the S-VLC system showed high robustness compared with other systems (JPEG and JPEG2000) at different distances and higher BERs. the structural similarity index measure of the S-VLC system is superior to those of JPEG and JPEG2000.

关键词： image compression semantic communication VLC

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Multi-Armed Bandit Based Sum Rate Maximization for UAV-Assisted NOMA communication systems 14

Multi-Armed Bandit Based Sum Rate Maximization for UAV-Assis...

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14th international conference on Electrical Engineering (ICEENG)

作者： Elsayed, Abeer Makkey, Mostafa Y. Elnahas, Osama Assiut Univ Dept Elect Engn Fac Engn Assiut Egypt

ISBN: (纸本)9798350343427;9798350343434

In recent trend, unmanned aerial vehicles (UAVs) have become irreplaceable performer in enhancing mobile networks performance. Its flexibility and mobility features reinforce its existence in modern wireless communication networks as a dynamic base station (BS) to provide good wireless connectivity for mobile networks. Noting that, positioning of UAV plays an important role in achieving optimal performance for wireless communication networks. In this paper, we consider implementing a system model consisting of unmanned aerial vehicle (UAV) as a dynamic base station aided (NOMA) communication system to maximize the proposed system achievable sum rate. To optimize the position of UAV, we introduced a reinforcement learning (RL) based settle by modeling the UAV position optimization problem as a multi-armed bandit (MAB) problem. the interference and power limitations are constraints considered in the proposed formulated problem. the proposed simulation results show the effectiveness of the proposed MAB algorithm in solving the proposed UAV position optimization problem.

关键词： Unmanned aerial vehicle (UAV) Multi-Armed Bandit algorithm (MAB) Non-orthogonal multiple access (NOMA) Reinforcement learning (RL) Sum data rate

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From Detection to Dissection: Unraveling Bot Characteristics in the VKontakte Social Network 16

From Detection to Dissection: Unraveling Bot Characteristics...

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16th international conference on communication systems and networks, comsnets 2024

作者： Chechulin, Andrey Kolomeets, Maxim St. Petersburg Federal Research Center of the Russian Academy of Science International Digital Forensics Centre St. Petersburg Russia School of Computing Newcastle University Newcastle upon Tyne United Kingdom

ISBN: (纸本)9798350383119

the increasing sophistication of social bots and their ability to mimic human behaviour online presents a significant challenge in distinguishing them from genuine users. this paper proposes a novel approach for detecting and estimating the parameters of such bots within the VKontakte social network. this method involves creating a dataset by using controlled attacks on 'honeypot' accounts to measure bot activity. this process allows us to assess these bots' cost, quality, and speed. Additionally, we evaluate how well users trust bots by using a Turing test, which tests users' ability to identify bots. this dataset is then used within conventional machine learning techniques, leveraging features extracted from interaction graphs, text content, and statistical distributions. the evaluation of the proposed approach shows that it effectively detects bots and predicts their behaviour with considerable accuracy. It can work well even with datasets with a skewed balance of bot and human data, can identify the majority of bot networks, and shows only a minor correlation with the primary characteristics of the bots. Our approach has significant implications for enhancing the ability to select countermeasures against bots by providing a deeper understanding of the capabilities of attackers. Furthermore, it offers important insights for the forensic analysis of botnet attacks, enabling not just to confirm the presence of a botnet but also to characterise the attack's specifics. © 2024 IEEE.

关键词： bot characteristics machine learning social bot detection social network attack VKontakte

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ICCNS 2024 - Proceedings of the 2024 14th international conference on communication and Network Security

ICCNS 2024 - Proceedings of the 2024 14th International Conf...

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14th international conference on communication and Network Security, ICCNS 2024

ISBN: (纸本)9798400717994

the proceedings contain 29 papers. the topics discussed include: meta GPT-based agent for enhanced phishing email detection;detecting CDN domain names based on resolution graph with PU learning;a new lattice-based strong designated verifier signature scheme in the standard model;parallel compensation method for nonlinear impairments of optical fiber based on regular perturbation theory;an efficient and lightweight authenticated key agreement scheme cloud-assisted for smart agricultural monitoring systems;privacy protection in mobile crowdsensing based on local differential privacy;Argos: a detection-based method for log fusion and provenance graph compression;and a lightweight and trustworthy authentication protocol for UAV networks based on PUF.

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Self-powered IoT node utilizing a Perovskite Photovoltaic for Green OWC systems 14

Self-powered IoT node utilizing a Perovskite Photovoltaic fo...

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14th international Symposium on communication systems, networks and Digital Signal Processing (CSNDSP)

作者： del Valle Morales, Carlos Ivan Younus, Othman Isam Torres Zafra, Juan Carlos Ghassemlooy, Zabih Martinez-Sarriegui, Inaki Manuel Sanchez-Pena, Jose Carlos III Univ Madrid Photon Displays & Applicat Grp GDAF Madrid Spain Northumbria Univ Opt Commun Res Grp OCRG Newcastle Upon Tyne Tyne & Wear England TECNALIA Basque Res & Technol Alliance BRTA Madrid Spain

ISBN: (纸本)9798350348750;9798350348743

this work explores the feasibility of incorporating Perovskite Photovoltaic (PPV) cells into Internet-of-things (IoT) devices. the aim is to enable these devices to both receive data and harvest energy simultaneously, thus creating a dual self-powered IoT node. We have characterised a PPV that can be used for data reception and energy harvesting simultaneously. We have analysed the data reception capabilities of the PPV of 1mm(2) of the active area. In this work, we propose an equivalent electric circuit for the PPV used as a receiver, and determine its frequency response. the results show a bandwidth of similar to 120 Hz a 1mm(2) PPV. the energy harvesting module is based on the active area of 4,000 mm(2) of the same PPV, which improves the autonomy of the IoT node by 42 and 81% for indoor and outdoor environments, respectively.

关键词： energy harvesting internet of things optical wireless communication perovskite photovoltaics self-powering visible light communication

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Design and Simulation of Metamaterial Microwave devices for High efficiency Wireless Applications 14

Design and Simulation of Metamaterial Microwave devices for ...

引用

14th IEEE international conference on communication systems and Network Technologies, CSNT 2025

作者： Kumar, Amitabh Kumar, Yogesh Department of Electrical Electronics & Communication Engineering Galgotias University U.P. Greater Noida India

ISBN: (纸本)9798331531935

In this research work, a novel approach in the design and modeling of metamaterial-based microwave devices for improved bandwidth and efficiency for the next generation wireless technology;5G and all subsequent generations is presented. the design combines SRRs and CSRRs to realize a prototype that resonates at 5.85 GHz with -22.9 dB of return loss and 93% efficiency of transmission. the simulation results presented in this work demonstrated an operation bandwidth of 780 MHz, which was three times higher than conventional designs. Microwave design was performed using CST Microwave Studio and HFSS, while the experimental characteristics were obtained using a vector network analyzer. this paper describes the methodology, instruments, and control factors for obtaining this level of performance and indicates possible areas of using high-speed data transfers and signal quality in 5G and subsequent networks. © 2025 IEEE.

关键词： Microwave resonators

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Energy Profiling and Analysis of 5G Private networks: Evaluating Energy Consumption Patterns 24

Energy Profiling and Analysis of 5G Private Networks: Evalua...

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14th international conference on the Internet of things, IoT 2024

作者： Islam, Johirul Ahmad, Ijaz Gimhana, Shakthi Markkula, Juho Harjula, Erkki University of Oulu Oulu Finland

ISBN: (纸本)9798400712852

Private 5G networks provide enhanced security, a wide range of optimized services through network slicing, reduced latency, and support for many IoT devices in a specific area, all under the owner’s full control. Higher security and privacy to protect sensitive data is the most significant advantage of private networks, in e.g., smart hospitals. For long-term sustainability and cost-effectiveness of private 5G networks, analyzing and understanding the energy consumption variation holds a greater significance in reaching toward green private network architecture for 6G. this paper addresses this research gap by providing energy profiling of network components using an experimental laboratory setup that mimics real private 5G networks under various network conditions, which is a missing aspect in the existing literature. © 2024 Copyright held by the owner/author(s).

关键词： 5G mobile communication systems

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A Hardware-in-the-Loop Framework for Remote Monitoring of Safety Critical systems 24

A Hardware-in-the-Loop Framework for Remote Monitoring of Sa...

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14th international conference on the Internet of things, IoT 2024

作者： Ahmed, Arslan Comert, Mert Ahmed, Hafiz Nuclear AMRC The University of Sheffield Derby United Kingdom Nuclear AMRC The University of Sheffield Rotherham United Kingdom

ISBN: (纸本)9798400712852

this paper presents a hardware-in-the-loop (HiL) testbed for remote monitoring of safety-critical systems. the testbed creates a secure environment for remote operations by establishing a communication link using open platform communication unified architecture (OPC-UA) industrial protocol resilient to cyber-attacks. the testbed uses a hypothetical Asherah nuclear power plant (Asherah NPP) by incorporating its physics, control systems, instrumentation, and communication networks to be controlled by a remote controller device, a Siemens S7 1500 programmable logic controller (PLC). the HIL capabilities of the testbed allow real-time assessment of industrial communication networks by integrating hardware, simulating data flow with malicious scripts, and identifying vulnerabilities. the testbed is particularly useful for predictive maintenance procedures and efficient operation of nuclear power plants, ultimately improving the cybersecurity of instrumentation and control systems in safety-critical applications. An internet of things (IoT)-based framework of the proposed HiL testbed for remote monitoring of safety critical systems has also been proposed at the end of the paper. © 2024 Copyright held by the owner/author(s).

关键词： Nuclear power plants

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