2019 15th International Conference on Telecommunications (ConTEL)最新文献

QoE evaluation of WebRTC-based Mobile Multiparty Video Calls in Light of Different Video Codec Settings 基于webrtc的移动多方视频通话在不同视频编解码器设置下的QoE评价

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-08-09 DOI: 10.1109/ConTEL.2019.8848499

Dunja Vučić, Lea Skorin-Kapov

{"title":"QoE evaluation of WebRTC-based Mobile Multiparty Video Calls in Light of Different Video Codec Settings","authors":"Dunja Vučić, Lea Skorin-Kapov","doi":"10.1109/ConTEL.2019.8848499","DOIUrl":"https://doi.org/10.1109/ConTEL.2019.8848499","url":null,"abstract":"Technological advances in mobile networks and end user devices are paving the way for widespread use of interactive multiparty audiovisual communication services. The emergence of the WebRTC (Web Real-Time Communication) open framework has provided an opportunity to redefine the video conferencing communication landscape. However, in the mobile context, challenges remain in optimizing video encoding parameters due to limited device processing power and dynamic wireless network conditions. In this paper, we investigate how different video encoding parameters in terms of encoding bit rate, resolution, and frame rate, influence Quality of Experience (QoE). While video parameters are manually manipulated, we observe also dynamic video adaptation invoked as a result of the Google Congestion Control (GCC) algorithm. We conduct an experimental study involving twenty-seven users participating in three-party audiovisual WebRTC calls on symmetric mobile devices with a given conversation task to simulate natural conversation. Participants reported subjective ratings for test scenarios with different combinations of video encoding parameters, for which we collect real-time session data using the Chrome WebRTC-internals tool.","PeriodicalId":182429,"journal":{"name":"2019 15th International Conference on Telecommunications (ConTEL)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127117023","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: 7

A Path Loss Model for Vehicle-to-Vehicle Visible Light Communications 车对车可见光通信的路径损耗模型

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848562

Hossien B. Eldeeb, Farshad Miramirkhani, M. Uysal

引用次数: 29

Technical Analysis of an Initial Coin Offering 首次代币发行的技术分析

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848532

Alen Hrga, Federico Matteo Bencic, Ivana Podnar Žarko

引用次数: 15

Vehicular Communications in Tunnels using VLC 使用VLC的隧道车辆通信

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848500

Edmundo Torres-Zapata, V. Guerra, J. Rabadán, R. P. Jiménez, J. M. Luna-Rivera

引用次数: 6

Distributed Data Platform for Automotive Industry: A Robust Solution for Tackling Big Challenges of Big Data in Transportation Science 面向汽车行业的分布式数据平台:应对交通科学大数据挑战的强大解决方案

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848542

Dario Pevec, Hrvoje Vdovic, Ivana Gace, Matea Sabolic, Jurica Babic, V. Podobnik

{"title":"Distributed Data Platform for Automotive Industry: A Robust Solution for Tackling Big Challenges of Big Data in Transportation Science","authors":"Dario Pevec, Hrvoje Vdovic, Ivana Gace, Matea Sabolic, Jurica Babic, V. Podobnik","doi":"10.1109/ConTEL.2019.8848542","DOIUrl":"https://doi.org/10.1109/ConTEL.2019.8848542","url":null,"abstract":"Nowadays, large amounts of data are being generated from numerous sources. Such a trend is evident in many research fields where the number of data producers is constantly increasing. For example, fields of transportation science and automotive industry may consider each vehicle on the road as a separate data producer which can generate large amounts of data. In the literature, the big data is commonly used as an umbrella term when discussing research related to the following data challenges: volume, variety, velocity, veracity and value. Furthermore, it is a common approach to use a variety of programming tools and methods for different data processing phases, i.e., data collection, data storage, and data analysis. In this paper, we present a distributed data platform that addresses the aforementioned challenges by relying on a specific design choices for each of data processing phases. We argument how such the data platform supports robustness, scalability, fault tolerance, and reliability by showcasing the two real-world use-cases from the transportation/automotive domain: (i) collection, storage, and analysis of the data generated by electric cleaners fleet, and (ii) collection, storage, and analysis of transaction data from EV charging stations, which is further used to develop the EV charging infrastructure.","PeriodicalId":182429,"journal":{"name":"2019 15th International Conference on Telecommunications (ConTEL)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130850215","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: 6

Advanced Handover Self-optimization Approach for 4G/5G HetNets Using Weighted Fuzzy Logic Control 基于加权模糊逻辑控制的4G/5G HetNets切换自优化方法

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848507

A. Alhammadi, M. Roslee, M. Y. Alias, Ibraheem Shayea, Saddam Alraih, Anas Bin Abas

{"title":"Advanced Handover Self-optimization Approach for 4G/5G HetNets Using Weighted Fuzzy Logic Control","authors":"A. Alhammadi, M. Roslee, M. Y. Alias, Ibraheem Shayea, Saddam Alraih, Anas Bin Abas","doi":"10.1109/ConTEL.2019.8848507","DOIUrl":"https://doi.org/10.1109/ConTEL.2019.8848507","url":null,"abstract":"The future fifth generation (5G) wireless communications support the ultra-dense networks where deployments of a large number of small cells coexist with current 4G networks. However, the dense small cell deployment is facing a technical challenge in mobility management due to the increased number of handovers (HOs), especially in heterogeneous networks (HetNets). The increasing probability of HOs may cause HO failure (HOF) or HO ping-pong (HOPP) which degrades the system performance. To solve this problem, we propose a weighted fuzzy self-optimization (WFSO) approach for the optimization of the handover control parameters (HCPs). In this approach, the HO decision relies on three considered attributes: signal-to-interference-plus-noise ratio, traffic load of serving and target base station, and user equipment’s velocity. The self-optimized HCPs, namely the HO margin and time-to-trigger are adjusted according to the current status of these attributes to improve the HO performance. Simulation results indicate that the proposed WFSO approach significantly lowers the rates of HOPP, radio link failure and HOF in comparison with the other algorithms found in the literature.","PeriodicalId":182429,"journal":{"name":"2019 15th International Conference on Telecommunications (ConTEL)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123284074","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: 36

Simulation of Rolling Shutter Acquisition in Optical Camera Communications 光学相机通信中滚动快门采集的仿真

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848549

V. Matus, V. Guerra, Cristo Jurado-Verdú, J. Rabadán, R. P. Jiménez

引用次数: 4

Satellite Imagery and On-Site Crowdsourcing for Improved Crisis Resilience 提高危机复原力的卫星图像和现场众包

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-03 DOI: 10.1109/ConTEL.2019.8848564

Refiz Duro, Tanja Gasber, Meng-Ming Chen, Sebastian Sippl, Daniel Auferbauer, P. Kutschera, Alexandra-Ioana Bojor, Volodymyr Andriychenko, Kuo-Yu slayer Chuang

引用次数: 3

Challenges in Assessing Network Latency Impact on QoE and In-Game Performance in VR First Person Shooter Games 在VR第一人称射击游戏中评估网络延迟对QoE和游戏内性能影响的挑战

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-01 DOI: 10.1109/ConTEL.2019.8848531

Sara Vlahovic, M. Sužnjević, Lea Skorin-Kapov

引用次数: 4

Novel Optical Network Design for Automotive Applications using ROADMs 基于roadm的汽车应用新型光网络设计

2019 15th International Conference on Telecommunications (ConTEL) Pub Date : 2019-07-01 DOI: 10.1109/ConTEL.2019.8848538

Daniel Kraus, H. Ivanov, E. Leitgeb

引用次数: 1