2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)最新文献_第3页

Availability Study of Atmospheric Gaussian Pulse Propagation with Normally Distributed Time Jitter for Optical Wireless Communication Systems 具有正态分布时间抖动的大气高斯脉冲传输在光通信系统中的有效性研究

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880807

D. Oreinos, P. J. Gripeos, E. Kapotis, E. Roditi, H. Nistazakis, G. Tombras

{"title":"Availability Study of Atmospheric Gaussian Pulse Propagation with Normally Distributed Time Jitter for Optical Wireless Communication Systems","authors":"D. Oreinos, P. J. Gripeos, E. Kapotis, E. Roditi, H. Nistazakis, G. Tombras","doi":"10.1109/CoBCom55489.2022.9880807","DOIUrl":"https://doi.org/10.1109/CoBCom55489.2022.9880807","url":null,"abstract":"Free Space Optical communications are steadily emerging, due to the numerous and various benefits that they offer. Although FSO systems are based on a cheap, safe and efficient technology, there are many degrading effects that should be taken into account. In particular, long and fast links suffer from many existing effects, acting cumulatively, resulting in a not negligible deterioration of both performance and availability, as their length or bit rate increases. And that is because of the FSO pulse propagation through dispersive atmospheric channels, while short timed pulses are prone to be misdetected in adjacent time slots at the receiver, leading to disturbances in the bit stream, consequently. This work includes the estimation of FSO link performance, focusing on both the group velocity dispersion and the time jitter effects, calculated in terms of both probability of fade and outage probability, using closed form mathematical expressions. Then, interesting numerical results and conclusions are presented for typical FSO links' parameters.","PeriodicalId":131597,"journal":{"name":"2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130163415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transmission Type Nano-Layered Electro-Optical Modulator for Chip-to-Chip Optical Interconnection: Electromagnetic Modelling by the Method of Single Expression 用于片间光互连的传输型纳米层状电光调制器:单表达式法电磁建模

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880646

H. Baghdasaryan, T. Knyazyan, T. Hovhannisyan, G. Mardoyan, T. Baghdasaryan, H. Ivanov, P. Bekhrad, M. Marciniak, E. Leitgeb

{"title":"Transmission Type Nano-Layered Electro-Optical Modulator for Chip-to-Chip Optical Interconnection: Electromagnetic Modelling by the Method of Single Expression","authors":"H. Baghdasaryan, T. Knyazyan, T. Hovhannisyan, G. Mardoyan, T. Baghdasaryan, H. Ivanov, P. Bekhrad, M. Marciniak, E. Leitgeb","doi":"10.1109/CoBCom55489.2022.9880646","DOIUrl":"https://doi.org/10.1109/CoBCom55489.2022.9880646","url":null,"abstract":"Advantages of optical links for data transmission are doubtless. Different types of optical interconnects for inter/intra chip links are under development. Electro-optical modulators (EOMs) are one of key elements of optical links. Transmission-type EOM for chip-to-chip optical interconnection is analysed by the method of single expression. Transmission properties of Fabry-Perot resonant type modulator consisting of electro-optical material embedded between Si/SiO2 distributed Bragg reflectors (DBRs) are analysed. From four possible types of DBRs the suitable structure has been chosen. Two semitransparent conducting electrodes for applying electrical signal to electro-optical material are parts of the nano-layered structure and are included in the electromagnetic model. As an external light source, a conventional laser diode of wavelength 1.55 $mu m$ is taken. Efficiency of optical wave intensity modulation is analysed by means of influence of electro-optical material's permittivity change (under applied voltage) on resonator's maximal transmission peak shift. For the electro-optical material LiNbO3 of thickness about 1 mm the suitable resonance peak shift is obtained.","PeriodicalId":131597,"journal":{"name":"2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131719425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Integrated Sensing and Communication in the Visible Spectral Range: A Novel Closed Loop Controller 可见光谱范围内集成传感与通信:一种新型闭环控制器

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880677

Christian Fragner, A. Weiss, F. Wenzl, E. Leitgeb

引用次数: 2

AWG-Channel-Spacing: A New Software Tool to Calculate Accurate Channel Spacing of an AWG Optical Multiplexer/Demultiplexer AWG通道间距:一种计算AWG光复用/解复用器精确通道间距的新软件工具

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880652

Manuel Humpeler, S. Serečunová, D. Seyringer

引用次数: 0

Base Station Anomaly Prediction Leveraging Model-Driven Framework for Classification in Neo4j 利用 Neo4j 中的模型驱动分类框架进行基站异常预测

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880776

N. Petrovic, Issam Al-Azzoni, D. Krstić, Abdullah Alqahtani

引用次数: 3

Gamma Gamma Turbulence and Nonzero Boresight Spatial Jitter Influence at the Outage Performance of THz Links 伽马湍流和非零轴视空间抖动对太赫兹链路中断性能的影响

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880645

G. K. Varotsos, E. V. Chatzikontis, H. Nistazakis, K. Aidinis, A. Tsigopoulos, V. Christofilakis

{"title":"Gamma Gamma Turbulence and Nonzero Boresight Spatial Jitter Influence at the Outage Performance of THz Links","authors":"G. K. Varotsos, E. V. Chatzikontis, H. Nistazakis, K. Aidinis, A. Tsigopoulos, V. Christofilakis","doi":"10.1109/CoBCom55489.2022.9880645","DOIUrl":"https://doi.org/10.1109/CoBCom55489.2022.9880645","url":null,"abstract":"The recent increasing requirements for high speed and robust wireless communication links have given rise to the development of THz wireless communication systems (0.3-10 THz), as a very promising alternative to their MMW and FSO counterparts. However, the performance of THz wireless systems is subject to free space path loss, signal attenuation due to humid air, atmospheric turbulence and pointing errors between transmitter and receiver terminals. Thus, in this work we first introduce the stochastic impact of generalized PEs with nonzero boresight in the THz area, while atmospheric turbulence is modeled through the suitable gamma gamma distribution. Considering also the deterministic impact of free space path loss and signal attenuation, an outage probability analysis is performed for a typical line of sight THz link. In this context, novel closed form expressions are derived. Their analytical results demonstrate the joint influence of these effects on THz signal transmissions, while simulation results validate the accuracy of our analysis.","PeriodicalId":131597,"journal":{"name":"2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"184 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124918575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visible Light Sensing for Recognising Human Postural Transitions 用于识别人体姿势转换的可见光传感

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880682

Ziad Salem, A. Weiss

{"title":"Visible Light Sensing for Recognising Human Postural Transitions","authors":"Ziad Salem, A. Weiss","doi":"10.1109/CoBCom55489.2022.9880682","DOIUrl":"https://doi.org/10.1109/CoBCom55489.2022.9880682","url":null,"abstract":"Human activity recognition and monitoring classify signals that are generated from various sensors based on the physical activities a person is performing during his/her daily life. This is useful if a human performs some postural transition activities such as sit-to-stand and stand-to-sit, which are hardly detected accurately by a single sensor. The aim of this study is to explore the possibilities of detecting daily postural transition activities through a novel wearable approach comprising of inertial measurement sensors (IMU) and visible light sensing (VLS) utilizing a single RGB photodiode in an unmodified lighting infrastructure. By employing a low-complex decision tree algorithm, the activity recognition can be achieved in a resourceful way. For enabling our approach to work precisely in changing environments, a K-means clustering algorithm is employed to adapt the parameters of both sit-to-stand and stand-to-sit transition detection. Our approach is validated with different scenarios; representing basic and daily life postural transition activities. The results showed that the approach was able to achieve the tasks accurately, which could not be the case if either IMU sensors or VLS is used alone.","PeriodicalId":131597,"journal":{"name":"2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121503035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Visible Light Technologies — Background, Principles, Current applications and future developments 可见光技术-背景，原理，当前应用和未来发展

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/cobcom55489.2022.9880715

A. Weiss

引用次数: 0

Graphene-Based Tunable Metasurface Screen with Fresnel Zone Resonators (FZRs) 基于菲涅耳区谐振器的石墨烯可调谐超表面屏

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880730

Ozan Turhan Gümdüz, C. Sabah, E. Leitgeb

{"title":"Graphene-Based Tunable Metasurface Screen with Fresnel Zone Resonators (FZRs)","authors":"Ozan Turhan Gümdüz, C. Sabah, E. Leitgeb","doi":"10.1109/CoBCom55489.2022.9880730","DOIUrl":"https://doi.org/10.1109/CoBCom55489.2022.9880730","url":null,"abstract":"Metasurfaces, which can create phase jumps to control the reflection and refraction of light, are the updated versions of metamaterials for optical frequencies. Snell's law follows the surface phase distribution anomalously which constituted achievements decade ago that were highly significant by means of wavefront manipulation. One of these achievements was real holography which has been accomplished several times by the usage of metasurfaces. They can even be controlled digitally to create dynamic holographic images floating in the air. The applications involving metasurface holography up until today using anomalous reflection and refraction to focus wave fronts and create images suffer from relatively small image and focal length. Alternatively, Fresnel zone plates (FZPs) are known to focus light can be used to focus individual pixels which would only require a binary information. So that they can be adopted to construct 3D digital images by located individual pixels and/or voxels in air. Unfortunately, for the focusing effect to take place, Fresnel zone sizes should be at micron scale which also constitutes a micron scale focusing. Luckily, the focus length can be extended by sophisticated electric field excitations and once a single, bilayer or multilayer graphene sheets are used as the inclusions, tuning quality may improve. Therefore, if an array of these is used to construct a metasurface, the collective response may provide better focusing characteristics. As an ongoing study, we propose a topological idea for a tunable metasurface with inclusion which we called as Fresnel zone resonators (FZRs) - even if they do not actually resonate - that implement FZP topology. At the end, an electronically controllable screen of the proposed FZR units is discussed by means of phase, scattering dynamics and possible manufacturing processes.","PeriodicalId":131597,"journal":{"name":"2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125610696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Educational Activities with Photonics Explorer 与Photonics Explorer的教育活动

2022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom) Pub Date : 2022-07-12 DOI: 10.1109/CoBCom55489.2022.9880713

D. Seyringer, Paul Schreivogl, Karin Langer, G. Krizek, E. Leitgeb, Arno Grabher-Meyer

引用次数: 0