Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246316
Uroš Jović, N. Lajić, Dušan Ačanski, Danijel Spasojevic
This paper shows one solution for testing the communication through FlexRay bus, which connects multiple Electronic Control Units (ECUs) in the system. Presented implementation is specially adjusted for testing the embedded system, and it will help the assessment of reliability of the system. The focus is on detecting the errors that appear during FlexRay message transfer, messages with corrupted content and unexpected delay of the messages. Beside monitoring and data recording, it is possible to inject faults and replay the captured data. Within the paper there is also a proposed solution of a diagnostic module that collects and displays the unique error code in order to precisely determine the origin of the error that occurred. Tests were executed using VECTOR's VN Box along with supporting software.
{"title":"Testing of FlexRay communication and error processing using dedicated tools in automotive industry","authors":"Uroš Jović, N. Lajić, Dušan Ačanski, Danijel Spasojevic","doi":"10.1109/TELSKS.2017.8246316","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246316","url":null,"abstract":"This paper shows one solution for testing the communication through FlexRay bus, which connects multiple Electronic Control Units (ECUs) in the system. Presented implementation is specially adjusted for testing the embedded system, and it will help the assessment of reliability of the system. The focus is on detecting the errors that appear during FlexRay message transfer, messages with corrupted content and unexpected delay of the messages. Beside monitoring and data recording, it is possible to inject faults and replay the captured data. Within the paper there is also a proposed solution of a diagnostic module that collects and displays the unique error code in order to precisely determine the origin of the error that occurred. Tests were executed using VECTOR's VN Box along with supporting software.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122841425","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246236
V. Radonić, G. Miskovic, Vesna Cmojević-Bengin
In this paper, we demonstrate the influence of the line-to-spacing ratio of the Hilbert fractal antenna to its radiation characteristic. The proposed antennas realized using Hilbert fractal curves of the third order have been designed to operate at 2.45 GHz according IEEE 802.15.1 standard. Due to specific configuration of the Hilbert fractal curves and mutual coupling between fractal segments, the radiation patterns of the proposed antenna can be significantly changed by changing the line-to-spacing ratio of the Hilbert fractal radiators. The proposed antenna has been fabricated in Low Temperature Co-fired Ceramic (LTCC) technology. The measured result of the Hilbert dipole antenna confirmed its good impedance matching and return loss.
{"title":"Fractal dipole antennas based on Hilbert curves with different line-to-spacing ratio","authors":"V. Radonić, G. Miskovic, Vesna Cmojević-Bengin","doi":"10.1109/TELSKS.2017.8246236","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246236","url":null,"abstract":"In this paper, we demonstrate the influence of the line-to-spacing ratio of the Hilbert fractal antenna to its radiation characteristic. The proposed antennas realized using Hilbert fractal curves of the third order have been designed to operate at 2.45 GHz according IEEE 802.15.1 standard. Due to specific configuration of the Hilbert fractal curves and mutual coupling between fractal segments, the radiation patterns of the proposed antenna can be significantly changed by changing the line-to-spacing ratio of the Hilbert fractal radiators. The proposed antenna has been fabricated in Low Temperature Co-fired Ceramic (LTCC) technology. The measured result of the Hilbert dipole antenna confirmed its good impedance matching and return loss.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126488375","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246242
Z. Bojkovic, B. Bakmaz, M. Bakmaz
Tactile Internet is an emerging paradigm of the next generation mobile networks (5G and beyond). Conceptually designed to respond to the most complex requirements of ultra-low latency and extremely high reliability, it was observed as capability to wirelessly control both real and virtual objects, thus requiring tactile-based control signals and audio-visual feedbacks. This vision can improve the user experience in virtual environments in the order of millisecond interaction. Future applications such as autonomous vehicles, haptic healthcare, remote robotics, and robust image processing would use the Tactile Internet and related technologies. Software-defined networking and network function virtualization, together with edge-fog computing, can be seen as new wave toward the efficient and flexible infrastructure. This work provides a comprehensive survey on recent progress and enabling technologies proposed for the Tactile Internet. By outlining the key networking solutions, together with innovative radio interface design, some open issues and future research directions to meet critical latency requirements, are highlighted, too.
{"title":"Vision and enabling technologies of tactile internet realization","authors":"Z. Bojkovic, B. Bakmaz, M. Bakmaz","doi":"10.1109/TELSKS.2017.8246242","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246242","url":null,"abstract":"Tactile Internet is an emerging paradigm of the next generation mobile networks (5G and beyond). Conceptually designed to respond to the most complex requirements of ultra-low latency and extremely high reliability, it was observed as capability to wirelessly control both real and virtual objects, thus requiring tactile-based control signals and audio-visual feedbacks. This vision can improve the user experience in virtual environments in the order of millisecond interaction. Future applications such as autonomous vehicles, haptic healthcare, remote robotics, and robust image processing would use the Tactile Internet and related technologies. Software-defined networking and network function virtualization, together with edge-fog computing, can be seen as new wave toward the efficient and flexible infrastructure. This work provides a comprehensive survey on recent progress and enabling technologies proposed for the Tactile Internet. By outlining the key networking solutions, together with innovative radio interface design, some open issues and future research directions to meet critical latency requirements, are highlighted, too.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116642683","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246263
N. Vučić, Z. Perić, M. Dincic
This article studies quasi-logarithmic quantizer for speech signal with variable length codes (VLC). Switched quantizer leads to the achievement of better performances. In this way, variance range is split into quantizers and for each of them a separate quantizer is designed. Performances are computed depending on various input parameters and optimal ones are found according to two different criteria. Within the variance range, every quantizer has own model with a two-stage coder. Among VLC, here is chosen Golomb-Rice (GR) coding technique due to its simplicity.
{"title":"Design of switched quasi-logarithmic quantizer for Gaussian source with variable length codes","authors":"N. Vučić, Z. Perić, M. Dincic","doi":"10.1109/TELSKS.2017.8246263","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246263","url":null,"abstract":"This article studies quasi-logarithmic quantizer for speech signal with variable length codes (VLC). Switched quantizer leads to the achievement of better performances. In this way, variance range is split into quantizers and for each of them a separate quantizer is designed. Performances are computed depending on various input parameters and optimal ones are found according to two different criteria. Within the variance range, every quantizer has own model with a two-stage coder. Among VLC, here is chosen Golomb-Rice (GR) coding technique due to its simplicity.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124412124","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}
Pub Date : 2017-10-01DOI: 10.1109/telsks.2017.8246230
Luka Erdeljanovic, Stefan Stefanović, Nikola Veljkovic, Ivan Petrovic
The purpose of this paper is to show the optimization of script programs, using Native Client and Pepper Plug-in API (Application Programming Interface) technologies. An example and verification of this method is shown by translating the implementation of an expert system from JavaScript to C++. The performance of the expert system was measured, in both JavaScript and C++ implementations, and conclusions were drawn.
{"title":"One method of optimizing an expert system using native client on a TV platform","authors":"Luka Erdeljanovic, Stefan Stefanović, Nikola Veljkovic, Ivan Petrovic","doi":"10.1109/telsks.2017.8246230","DOIUrl":"https://doi.org/10.1109/telsks.2017.8246230","url":null,"abstract":"The purpose of this paper is to show the optimization of script programs, using Native Client and Pepper Plug-in API (Application Programming Interface) technologies. An example and verification of this method is shown by translating the implementation of an expert system from JavaScript to C++. The performance of the expert system was measured, in both JavaScript and C++ implementations, and conclusions were drawn.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129588563","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246284
I. Djordjevic, Shaoliang Zhang, Ting Wang
In this keynote invited paper, to address key challenges for beyond 5G wireless technologies in a simultaneous manner, we propose an orbital angular momentum (OAM) based, energy-efficient multidimensional coded modulation. The key idea is to employ all available degrees of freedom (DOFs) to convey the information over the wireless links including amplitude, phase, polarization state, and spatial-domain DOFs. In particular, the OAM is associated with azimuthal phase dependence of the wavefront, and represents an underutilized DOF. Given that OAM eigenstates are orthogonal, an arbitrary number of bits per symbol can be transmitted. To implement OAM multiplexer and demultiplexer in the RF domain, we propose to use a properly designed antenna arrays. Monte Carlo simulations demonstrate high tolerance to fading effects of LDPC-coded multidimensional signaling schemes compared to conventional LDPC-coded QAM.
{"title":"Multidimensional coded modulation for wireless communications beyond 5G","authors":"I. Djordjevic, Shaoliang Zhang, Ting Wang","doi":"10.1109/TELSKS.2017.8246284","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246284","url":null,"abstract":"In this keynote invited paper, to address key challenges for beyond 5G wireless technologies in a simultaneous manner, we propose an orbital angular momentum (OAM) based, energy-efficient multidimensional coded modulation. The key idea is to employ all available degrees of freedom (DOFs) to convey the information over the wireless links including amplitude, phase, polarization state, and spatial-domain DOFs. In particular, the OAM is associated with azimuthal phase dependence of the wavefront, and represents an underutilized DOF. Given that OAM eigenstates are orthogonal, an arbitrary number of bits per symbol can be transmitted. To implement OAM multiplexer and demultiplexer in the RF domain, we propose to use a properly designed antenna arrays. Monte Carlo simulations demonstrate high tolerance to fading effects of LDPC-coded multidimensional signaling schemes compared to conventional LDPC-coded QAM.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132720140","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246238
A. Slavov, P. Petkov
This paper examines the possibility of developing a low profile antenna with fractal design which can achieve high gain for RFID applications in the frequency range from 865 to 868MHz. The advantages of the suggested structure are high gain, small physical dimensions and low profile compared to traditional antennas. The proposed approach is applicable to EMI/EMC sensors and probes as well.
{"title":"Fractal antenna over EBG structure for UHF RFID applications","authors":"A. Slavov, P. Petkov","doi":"10.1109/TELSKS.2017.8246238","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246238","url":null,"abstract":"This paper examines the possibility of developing a low profile antenna with fractal design which can achieve high gain for RFID applications in the frequency range from 865 to 868MHz. The advantages of the suggested structure are high gain, small physical dimensions and low profile compared to traditional antennas. The proposed approach is applicable to EMI/EMC sensors and probes as well.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130944752","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246232
M. Ilic, Darko Vidakovic, J. Filipovic
This paper presents DTV software solution for embedded TV devices with low cost and low memory consumption. Unified software architecture of the proposed solution is designed to be easily ported on different hardware and easily integrated in different environments. The main goal of such implementation is to create an optimized DTV software stack with low memory footprint and highly portable hardware abstraction layer, while retaining solid performance, usability and compliance to the required digital and analog broadcasting standards.
{"title":"Low memory consumption DTV (ATSC) software solution for embedded TV devices","authors":"M. Ilic, Darko Vidakovic, J. Filipovic","doi":"10.1109/TELSKS.2017.8246232","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246232","url":null,"abstract":"This paper presents DTV software solution for embedded TV devices with low cost and low memory consumption. Unified software architecture of the proposed solution is designed to be easily ported on different hardware and easily integrated in different environments. The main goal of such implementation is to create an optimized DTV software stack with low memory footprint and highly portable hardware abstraction layer, while retaining solid performance, usability and compliance to the required digital and analog broadcasting standards.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131155988","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246271
V. Kafedziski, Sinisha Pecov
We implement a software defined stepped frequency radar using a USRP. Stepped frequency radar suffers from large data collection time due to large number of pulses with different frequencies sent. Our approach uses a baseband stepped frequency signal, which is upconverted to RF, and, then, frequency hopping the RF frequency. In this way, a low cost hardware with moderate instantaneous RF bandwidth can be used. The total time for hopping all the frequencies, i.e. the data collection time, is also reduced. Resolution can be improved many-fold, depending on the USRP total frequency range.
{"title":"Implementation of a high resolution stepped frequency radar on a USRP","authors":"V. Kafedziski, Sinisha Pecov","doi":"10.1109/TELSKS.2017.8246271","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246271","url":null,"abstract":"We implement a software defined stepped frequency radar using a USRP. Stepped frequency radar suffers from large data collection time due to large number of pulses with different frequencies sent. Our approach uses a baseband stepped frequency signal, which is upconverted to RF, and, then, frequency hopping the RF frequency. In this way, a low cost hardware with moderate instantaneous RF bandwidth can be used. The total time for hopping all the frequencies, i.e. the data collection time, is also reduced. Resolution can be improved many-fold, depending on the USRP total frequency range.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114093590","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}
Pub Date : 2017-10-01DOI: 10.1109/TELSKS.2017.8246315
Petar Petrovič, N. Vranic, Maja M. Lutovac Banduka, V. Mihic
Today, Digital television services are comprised of several hundred channels, which can significantly hinder the user's ability to find their desired content. This paper aims to show the practical implementation of determining human positive emotions by using smartwatch sensors, as a means to relieving the search of content.
{"title":"Implementation of DTV user interaction concept with content recommendations","authors":"Petar Petrovič, N. Vranic, Maja M. Lutovac Banduka, V. Mihic","doi":"10.1109/TELSKS.2017.8246315","DOIUrl":"https://doi.org/10.1109/TELSKS.2017.8246315","url":null,"abstract":"Today, Digital television services are comprised of several hundred channels, which can significantly hinder the user's ability to find their desired content. This paper aims to show the practical implementation of determining human positive emotions by using smartwatch sensors, as a means to relieving the search of content.","PeriodicalId":206778,"journal":{"name":"2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS)","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121946709","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}
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