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2021 29th Telecommunications Forum (TELFOR)最新文献

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Automotive safety: ActivityView enabled split-screen 汽车安全:activeview支持分屏
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653251
Nemanja Lazic, Milica Z. Ponos, M. Bjelica, Tihomir Andjelic, J. Pesic
{"title":"Automotive safety: ActivityView enabled split-screen","authors":"Nemanja Lazic, Milica Z. Ponos, M. Bjelica, Tihomir Andjelic, J. Pesic","doi":"10.1109/TELFOR52709.2021.9653251","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653251","url":null,"abstract":"In-Vehicle Infotainment systems are representatives of a new generation of multimedia in vehicle systems. As the name proposes, the main goal of these systems is to provide entertainment and informational content to the driver and passengers. Automotive industry is undergoing dramatic changes nowadays and there is a lack of standards for what operating system should be applied to certain vehicle display. Availability of Android operating system (AOS) on most of the modern portable devices and ability to re-use existing tested and reliable applications, encourage automotive industry to integrate AOS in vehicles, usually in head unit display. The goal is to build systems that will be easy to handle. It will impose minimal distraction of the driver. One way to achieve higher safety level while in traffic is by allowing driver to manipulate two or more applications simultaneously. This work is based on expanding multimedia system in the vehicle based on Android operating system so it can show two or more apps at the same time while using this new Android component called ActivityView. In this paper we argue that with this software component, interaction with central information display is going to be more efficient and safety will be enhancedas well.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131055811","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
New stop band 48 MHz crystal filter 新的阻带48兆赫晶体滤波器
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653309
D. Dujković, S. D. Nešić, L. Grubišić, I. Reljin, A. Gavrovska
{"title":"New stop band 48 MHz crystal filter","authors":"D. Dujković, S. D. Nešić, L. Grubišić, I. Reljin, A. Gavrovska","doi":"10.1109/TELFOR52709.2021.9653309","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653309","url":null,"abstract":"Band stop filter or band-rejection filter, with narrow attenuation characteristic is described in this paper. These filters do not pass signals within the cutoff frequencies. Аt the specific request of the customer, a crystal filter was realized, which operates at a frequency of 48MHz. When measuring the non-linearities of power amplifiers, a very narrow notch filter can be very useful to avoid the carrier frequency. Use of the filter may ensure that the maximum input power of a spectrum analyser used to detect spurious content will not be exceeded. Such filters are used in modern telecommunications for civilian and military purposes.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124266380","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: 2
Distributed Spatial Modulation for Unmanned Aerial Vehicle-Base Station to Ground Cooperative Communication 无人机基站对地协同通信的分布式空间调制
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653292
Ayse Betül Büyüksar, Mehmet Can, I. Altunbas
{"title":"Distributed Spatial Modulation for Unmanned Aerial Vehicle-Base Station to Ground Cooperative Communication","authors":"Ayse Betül Büyüksar, Mehmet Can, I. Altunbas","doi":"10.1109/TELFOR52709.2021.9653292","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653292","url":null,"abstract":"In this paper, we present the error performance of a multi-relay network scenario for the unmanned aerial vehicle (UAV)-base stations (BS). In the considered system, multiple ground relays assist the transmission, using distributed spatial modulation (DSM) technique, from the UAV-BS to the ground destination. UAV-BS to ground links are affected by both path loss and shadowed-Rician fading, while the ground to ground link is affected by both path loss and Rayleigh fading. In the proposed system, indices of the relays are also used to convey information, and only one relay whose index is matched to the determined relay index can be active in transmission depending on the success of cyclic redundancy checking (CRC). The bit error probability (BEP) for the considered system is derived and validated by Monte Carlo simulations. The effects of different shadowing severities are investigated. Moreover, the considered DSM system is compared against the conventional decode and forward (DF) system, and it is shown that DSM provides a better error probability, especially under lower shadowing severity.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121358389","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
Asynchronous 2D-TDOA Localization Method 异步2D-TDOA定位方法
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653271
Boris Malčić, S. Sajic, Milan Trifunovic, Vedran Jovanovic
{"title":"Asynchronous 2D-TDOA Localization Method","authors":"Boris Malčić, S. Sajic, Milan Trifunovic, Vedran Jovanovic","doi":"10.1109/TELFOR52709.2021.9653271","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653271","url":null,"abstract":"This paper proposes one method of determining a location in two-dimensional (2D) space, where the mobile station (MS) determines its location based on three reference stations (RSs) whose locations are known. Here we present the closed-form solution for 2D-TDOA, and proposed the method where the RSs do not have to use time references nor do they have to be synchronized with each other. Furthermore, the closed-form solutions were confirmed by a simulation in MATLAB.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123476686","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
Prijedlog arhitekture sistema za rekonstrukciju 3D prostora i klasifikaciju objekata u prostoru koristeći ROS
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653397
Milan Škipina
{"title":"Prijedlog arhitekture sistema za rekonstrukciju 3D prostora i klasifikaciju objekata u prostoru koristeći ROS","authors":"Milan Škipina","doi":"10.1109/TELFOR52709.2021.9653397","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653397","url":null,"abstract":"Svjedoci smo sve većeg korišćenja tehnologije u svim sferama života gdje se teži automatizaciji što širih razmjera kada god je to moguće. U radu je izložen koncept 3D rekonstrukcije okoline koristeći dvije kamere, neuronsku mrežu YOLO (You Only Look Once) za klasifikaciju objekata u 3D prostoru sa idejom da se informacija o prostoru šalje robotu koji taj prostor koristi za obavljanje određenih zadataka. Ovo rješenje bi omogućilo da se pomoću samo dvije kamere većem broju robota koji se kreće u istom prostoru jave informacije koje su od interesa za robota da bi obavljao zadatke. Takođe, ovaj koncept je moguće prenijeti i na niz drugih primjena, kao što je pomoć pri automatizaciji vožnje, prepoznavanje saobraćajnih znakova, osoba ili bilo kojih drugih objekata od interesa za datu primjenu. Rješenje je kreirano koristeći ROS(Robot Operating System) koji omogućava proširenje daljom obradom podataka koji su već obrađeni u ovom radu.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123677277","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
Experimental evaluation of network packet latency within a distributed NFV Infrastructure 分布式NFV基础设施中网络数据包延迟的实验评估
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653395
G. Ilievski, P. Latkoski
{"title":"Experimental evaluation of network packet latency within a distributed NFV Infrastructure","authors":"G. Ilievski, P. Latkoski","doi":"10.1109/TELFOR52709.2021.9653395","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653395","url":null,"abstract":"Network Functions Virtualization (NFV) architecture together with the Software-defined Networking (SDN) are the driver for the network services improvements. They complement the 5G expansion. Together they are the enablers of long awaited IoT penetration as well as the AI mass usage . With such a scenario, networks grow towards the edge with a need for the storage and compute resources to be brought in the proximity to the access networks, thus allowing network latency to be under 1ms and minimizing the backhaul traffic. It is important for reliable, cost effective, and low-latency services and improved end-user experience. We have made an experimental setup of a distributed NFV architecture to investigate the network packet delay in services that span across multiple geographically separated locations. The objective of the research is to come with a conclusion that will help network architects to assess the NFV architecture and to make a distribution of the infrastructure on which the services lay on.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126154803","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: 2
A new approach for early detection of biological self-ignition in shipping container based on IoT technology for the smart logistics domain 智能物流领域基于物联网技术的集装箱生物自燃早期检测新方法
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653269
J. Továrek, P. Partila, S. Jakovlev, M. Voznák, Tomas Eglynas, Mindaugas Jusis
{"title":"A new approach for early detection of biological self-ignition in shipping container based on IoT technology for the smart logistics domain","authors":"J. Továrek, P. Partila, S. Jakovlev, M. Voznák, Tomas Eglynas, Mindaugas Jusis","doi":"10.1109/TELFOR52709.2021.9653269","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653269","url":null,"abstract":"This paper describes the design and implementation of an IoT sensor infrastructure to detect and prevent biological auto-ignition in closed environments - the shipping containers. The purpose of these IoT systems is to detect the safety and security threats in due time. The system monitors the values of humidity and temperature of agricultural material inside a closed environment. We present a complete eco-system of IoT infrastructure from the end probe to the web application. The implemented algorithms monitor and warn the responsible persons against the risky conditions of the stored agricultural product. The aim is to reduce the fire’s probability and provide a more precise overview of stored agricultural crops’ quality to reduce overall risks for the transport chain.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127160748","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: 3
One solution for collecting system and user statistics in cable STB devices 有线机顶盒设备系统和用户统计数据采集解决方案
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653326
Uroš Jokić, Đorđe Glišić, Marija Jovanović
{"title":"One solution for collecting system and user statistics in cable STB devices","authors":"Uroš Jokić, Đorđe Glišić, Marija Jovanović","doi":"10.1109/TELFOR52709.2021.9653326","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653326","url":null,"abstract":"Cable DTV operators only broadcast DTV content and have limited or no statistical information about the usage of the box so delivering new products and adjusting per customer needs is very limited. In this paper we analyze STB usage, strategies to collect user statistics and present one solution for collecting usage statistics on purchased DTV products. Proposed solution collects basic system statistics as well as statistics about DTV content being watched in resources limited environment.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125382989","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
Low-temperature micropower CJFET OpAmp with reduced Vzero value 低电压零值的低温微功率CJFET运放
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653420
V. Chumakov, N. Prokopenko, A. Bugakova, D. Denisenko, I. Pakhomov
{"title":"Low-temperature micropower CJFET OpAmp with reduced Vzero value","authors":"V. Chumakov, N. Prokopenko, A. Bugakova, D. Denisenko, I. Pakhomov","doi":"10.1109/TELFOR52709.2021.9653420","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653420","url":null,"abstract":"The original circuitry of the operational amplifier (OpAmp) and its modifications based on complementary field-effect transistors with a control p-n junction (СJFET, JSC \"Integral\", Belarus) is considered. A feature of the proposed CJFET OpAmp scheme is the use of a special static mode stabilization circuit in the input differential stage and intermediate push-pull folded-cascode on identical uncontrolled JFET dynamic loads. Computer simulation of СJFET OpAmp in the LTSpice software environment (Analog Device, USA) was performed in a wide temperature range (from -197°С to 27°С) and exposure to a neutron flux (up to 1014 n/cm2). The proposed circuitry solutions increase the open-loop gain of the CJFET OpAmp to 75 dB and minimize the systematic component of the zero offset voltage (less than 600 μV). The mathematical analysis of the open-loop gain of the CJFET OpAmp is given in paper. The developed CJFET OpAmp circuitry is applicable in various analog and analog-to-digital interfaces (active RC-filters, normalizing converters, etc.) operating at low temperatures and exposure to radiation.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125863528","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
Devising an Optimal Time-Delay Circuit Configuration for a Microwave-Photonics-Based Radio Communication Jammer 设计微波光子学无线电通信干扰器的最佳时延电路结构
2021 29th Telecommunications Forum (TELFOR) Pub Date : 2021-11-23 DOI: 10.1109/TELFOR52709.2021.9653367
M. Belkin, L. Zhukov, N. Smirnov
{"title":"Devising an Optimal Time-Delay Circuit Configuration for a Microwave-Photonics-Based Radio Communication Jammer","authors":"M. Belkin, L. Zhukov, N. Smirnov","doi":"10.1109/TELFOR52709.2021.9653367","DOIUrl":"https://doi.org/10.1109/TELFOR52709.2021.9653367","url":null,"abstract":"Elaborating the previously proposed new concept for the design of a radio communication jammer, which consists in replacing a multichannel digital electronic processor with an ultra-wideband optoelectronic processor, in this paper, we propose and investigate an advanced time delay processing circuit based on an optical Mach-Zehnder interferometer. Comparative analysis with the previous version shows near than three order of magnitude a decrease in the length of the optical fiber required to destruct the radio channel for transmitting the command code, which significantly improves size, weight, and cost characteristics of a jammer, and reduces its response time.","PeriodicalId":330449,"journal":{"name":"2021 29th Telecommunications Forum (TELFOR)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114865240","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
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