Pub Date : 2018-12-01DOI: 10.1109/VNC.2018.8628411
Eduardo Soares, P. Santos, L. Pinto, Ana Aguiar, P. Brandão, R. Prior
For communications, in certain scenarios, the spatial proximity between nodes obviates the need for a cellular connection, and MANETs can provide better solutions. An example is audio communication in bicycle platoons: cyclists ride in a cluster, but may be spread over hundreds of meters and their spatial arrangement can vary, leading to volatile links. In this work, we showcase a novel implementation of VoIP that was tailored for a MANET composed of embedded devices installed in bicycles, operating over multicast. We describe the architecture of our system, which builds on off-the-shelf hardware and software, and list the parameter values that result in reasonable audio quality. Preliminary results show that high packet delivery ratios (above 70%) can be attained with our system in platoon-riding conditions, despite no link (or network) retransmissions.
{"title":"Poster: VoIP System for Bicycle Platoons","authors":"Eduardo Soares, P. Santos, L. Pinto, Ana Aguiar, P. Brandão, R. Prior","doi":"10.1109/VNC.2018.8628411","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628411","url":null,"abstract":"For communications, in certain scenarios, the spatial proximity between nodes obviates the need for a cellular connection, and MANETs can provide better solutions. An example is audio communication in bicycle platoons: cyclists ride in a cluster, but may be spread over hundreds of meters and their spatial arrangement can vary, leading to volatile links. In this work, we showcase a novel implementation of VoIP that was tailored for a MANET composed of embedded devices installed in bicycles, operating over multicast. We describe the architecture of our system, which builds on off-the-shelf hardware and software, and list the parameter values that result in reasonable audio quality. Preliminary results show that high packet delivery ratios (above 70%) can be attained with our system in platoon-riding conditions, despite no link (or network) retransmissions.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"685 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115833775","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 : 2018-12-01DOI: 10.1109/VNC.2018.8628320
S. Xia, D. Godoy, Bashima Islam, Md Tamzeed Islam, S. Nirjon, P. Kinget, Xiaofan Jiang
With the prevalence of smartphones, pedestrians and joggers today often walk or run while listening to music. Since they are deprived of their auditory senses that would have provided important cues to dangers, they are at a much greater risk of being hit by cars or other vehicles. In this article, we present PAWS, a smartphone platform that utilizes an embedded wearable headset system mounted with an array of MEMS microphones to help detect, localize, and warn pedestrians of the imminent dangers of approaching cars.
{"title":"A Smartphone-Based System for Improving Pedestrian Safety","authors":"S. Xia, D. Godoy, Bashima Islam, Md Tamzeed Islam, S. Nirjon, P. Kinget, Xiaofan Jiang","doi":"10.1109/VNC.2018.8628320","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628320","url":null,"abstract":"With the prevalence of smartphones, pedestrians and joggers today often walk or run while listening to music. Since they are deprived of their auditory senses that would have provided important cues to dangers, they are at a much greater risk of being hit by cars or other vehicles. In this article, we present PAWS, a smartphone platform that utilizes an embedded wearable headset system mounted with an array of MEMS microphones to help detect, localize, and warn pedestrians of the imminent dangers of approaching cars.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116166662","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 : 2018-12-01DOI: 10.1109/VNC.2018.8628328
S. M. T. Islam, Bezawit Woldegebriel, A. Ashok
This work aims at providing complete independence to visually impaired personnel to travel using public commuting services. In this regard, we demonstrate an assistance system that helps administer a taxi ride for the visually impaired person. Our system consists of a wearable camera fit on the user, and which communicates with a smartphone app. The camera device uses computer vision to detect obstacles and navigate the person, and relays the information to the smartphone app. The app integrates that information with a taxi scheduling service on the phone. The interaction between the user and the phone is carried through speech and audio instructions. The app administers a taxi for pickup when the user clicks the screen. The person walks to the designated pick-up point and the taxi is identified using pre-registered WiFi and/or Bluetooth IDs.
{"title":"TaxSeeMe: A Taxi Administering System for the Visually Impaired","authors":"S. M. T. Islam, Bezawit Woldegebriel, A. Ashok","doi":"10.1109/VNC.2018.8628328","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628328","url":null,"abstract":"This work aims at providing complete independence to visually impaired personnel to travel using public commuting services. In this regard, we demonstrate an assistance system that helps administer a taxi ride for the visually impaired person. Our system consists of a wearable camera fit on the user, and which communicates with a smartphone app. The camera device uses computer vision to detect obstacles and navigate the person, and relays the information to the smartphone app. The app integrates that information with a taxi scheduling service on the phone. The interaction between the user and the phone is carried through speech and audio instructions. The app administers a taxi for pickup when the user clicks the screen. The person walks to the designated pick-up point and the taxi is identified using pre-registered WiFi and/or Bluetooth IDs.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128096579","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 : 2018-12-01DOI: 10.1109/VNC.2018.8628349
Soufian Toufga, Slim Abdellatif, P. Owezarski, T. Villemur
This paper presents our ongoing work towards the definition of an effective topology discovery service for SDN based hybrid vehicular networks. The main contributions of this paper are threefold: (1) an analysis of the main limitations of the “de facto” topology discovery service when applied to vehicular networks; (2) a quantitative assessment of its traffic overhead and the required computing resources at the controller to show the scalability issues that it raises; and (3) an insight into our design principles for an effective topology discovery service for SDN-based hybrid vehicular networks.
{"title":"OpenFlow based Topology Discovery Service in Software Defined Vehicular Networks: limitations and future approaches","authors":"Soufian Toufga, Slim Abdellatif, P. Owezarski, T. Villemur","doi":"10.1109/VNC.2018.8628349","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628349","url":null,"abstract":"This paper presents our ongoing work towards the definition of an effective topology discovery service for SDN based hybrid vehicular networks. The main contributions of this paper are threefold: (1) an analysis of the main limitations of the “de facto” topology discovery service when applied to vehicular networks; (2) a quantitative assessment of its traffic overhead and the required computing resources at the controller to show the scalability issues that it raises; and (3) an insight into our design principles for an effective topology discovery service for SDN-based hybrid vehicular networks.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129401773","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 : 2018-12-01DOI: 10.1109/VNC.2018.8628459
Chang-Heng Wang, Ceyhun D. Ozkaptan, E. Ekici, O. Altintas
In this poster, we propose a joint radar and communication waveform that modulates the widely adopted frequency modulated continuous waveform (FMCW) radar waveform with multi-carrier modulation. We introduce the modulation/demodulation scheme and radar processing and discuss potential challenges for such dual function waveform in a realistic environment. Compared with existing proposals of using regular OFDM waveform as joint radar and communication waveform, the proposed multi-carrier modulated FMCW decouples the radar bandwidth from the communication bandwidth, and may achieve automotive radar specification with less requirement on analog-digital conversion and baseband processing bandwidths.
{"title":"Poster: Multi-carrier Modulation on FMCW Radar for Joint Automotive Radar and Communication","authors":"Chang-Heng Wang, Ceyhun D. Ozkaptan, E. Ekici, O. Altintas","doi":"10.1109/VNC.2018.8628459","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628459","url":null,"abstract":"In this poster, we propose a joint radar and communication waveform that modulates the widely adopted frequency modulated continuous waveform (FMCW) radar waveform with multi-carrier modulation. We introduce the modulation/demodulation scheme and radar processing and discuss potential challenges for such dual function waveform in a realistic environment. Compared with existing proposals of using regular OFDM waveform as joint radar and communication waveform, the proposed multi-carrier modulated FMCW decouples the radar bandwidth from the communication bandwidth, and may achieve automotive radar specification with less requirement on analog-digital conversion and baseband processing bandwidths.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129947285","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 : 2018-12-01DOI: 10.1109/VNC.2018.8628418
A. Brummer, Thomas Deinlein, K. Hielscher, R. German, Anatoli Djanatliev
In this paper we present the results of a field experiment to validate the applicability of our diffraction model for the representation of three-dimensional terrain shape in Vehicular Ad hoc Network (VANET) simulation. We describe the measurement setup using readily available hardware and open-source software. Based on periodic beaconing, the course of the received power along a characteristic route has been recorded. With the help of accurate GNSS positioning the test drive has been reconstructed in simulation. This approach offers the possibility of directly comparing the simulated and measured received power and hereby evaluating the performance of the environmental diffraction model. The outcome of the simulation shows good accordance with the measurements. In contrast, a comparative 2D simulation fails to recognize characteristic drops in received power. Furthermore, we investigate the dependence of the model’s accuracy on elevation models of varying horizontal resolution, indicating overpessimistic results when using coarsely resolved datasets.
{"title":"Measurement-Based Evaluation of Environmental Diffraction Modeling for 3D Vehicle-to-X Simulation","authors":"A. Brummer, Thomas Deinlein, K. Hielscher, R. German, Anatoli Djanatliev","doi":"10.1109/VNC.2018.8628418","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628418","url":null,"abstract":"In this paper we present the results of a field experiment to validate the applicability of our diffraction model for the representation of three-dimensional terrain shape in Vehicular Ad hoc Network (VANET) simulation. We describe the measurement setup using readily available hardware and open-source software. Based on periodic beaconing, the course of the received power along a characteristic route has been recorded. With the help of accurate GNSS positioning the test drive has been reconstructed in simulation. This approach offers the possibility of directly comparing the simulated and measured received power and hereby evaluating the performance of the environmental diffraction model. The outcome of the simulation shows good accordance with the measurements. In contrast, a comparative 2D simulation fails to recognize characteristic drops in received power. Furthermore, we investigate the dependence of the model’s accuracy on elevation models of varying horizontal resolution, indicating overpessimistic results when using coarsely resolved datasets.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125394458","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 : 2018-12-01DOI: 10.1109/VNC.2018.8628344
A. Prokeš, Josef Vychodil, T. Mikulášek, J. Blumenstein, E. Zöchmann, H. Groll, C. Mecklenbräuker, M. Hofer, David Loeschenbrand, L. Bernadó, T. Zemen, S. Sangodoyin, A. Molisch
The paper deals with a time varying vehicle-to-vehicle channel measurement in the 60 GHz millimeter wave (MMW) band using a unique time-domain channel sounder built from off-the-shelf components and standard measurement devices and employing Golay complementary sequences as the excitation signal. The aim of this work is to describe the sounder architecture, primary data processing technique, achievable system parameters, and preliminary measurement results. We measured the signal propagation between two passing vehicles and characterized the signal reflected by a car driving on a highway. The proper operation of the channel sounder is verified by a reference measurement performed with an MMW vector network analyzer in a rugged stationary office environment. The goal of the paper is to show the measurement capability of the sounder and its superior features like 8 GHz measuring bandwidth enabling high time resolution or good dynamic range allowing an analysis of weak multipath components.
{"title":"Time-Domain Broadband 60 GHz Channel Sounder for Vehicle-to-Vehicle Channel Measurement","authors":"A. Prokeš, Josef Vychodil, T. Mikulášek, J. Blumenstein, E. Zöchmann, H. Groll, C. Mecklenbräuker, M. Hofer, David Loeschenbrand, L. Bernadó, T. Zemen, S. Sangodoyin, A. Molisch","doi":"10.1109/VNC.2018.8628344","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628344","url":null,"abstract":"The paper deals with a time varying vehicle-to-vehicle channel measurement in the 60 GHz millimeter wave (MMW) band using a unique time-domain channel sounder built from off-the-shelf components and standard measurement devices and employing Golay complementary sequences as the excitation signal. The aim of this work is to describe the sounder architecture, primary data processing technique, achievable system parameters, and preliminary measurement results. We measured the signal propagation between two passing vehicles and characterized the signal reflected by a car driving on a highway. The proper operation of the channel sounder is verified by a reference measurement performed with an MMW vector network analyzer in a rugged stationary office environment. The goal of the paper is to show the measurement capability of the sounder and its superior features like 8 GHz measuring bandwidth enabling high time resolution or good dynamic range allowing an analysis of weak multipath components.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116982794","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 : 2018-11-08DOI: 10.1109/VNC.2018.8628429
Ioannis Mavromatis, Andrea Tassi, R. Piechocki, A. Nix
The field of parallel network simulation frameworks is evolving at a great pace. That is also because of the growth of Intelligent Transportation Systems (ITS) and the necessity for cost-effective large-scale trials. In this contribution, we will focus on the INET Framework and how we re-factor its single-thread code to make it run in a multi-thread fashion. Our parallel version of the INET Framework can significantly reduce the computation time in city-scale scenarios, and it is completely transparent to the user. When tested in different configurations, our version of INET ensures a reduction in the computation time of up to 43%.
{"title":"Poster: Parallel Implementation of the OMNeT++ INET Framework for V2X Communications","authors":"Ioannis Mavromatis, Andrea Tassi, R. Piechocki, A. Nix","doi":"10.1109/VNC.2018.8628429","DOIUrl":"https://doi.org/10.1109/VNC.2018.8628429","url":null,"abstract":"The field of parallel network simulation frameworks is evolving at a great pace. That is also because of the growth of Intelligent Transportation Systems (ITS) and the necessity for cost-effective large-scale trials. In this contribution, we will focus on the INET Framework and how we re-factor its single-thread code to make it run in a multi-thread fashion. Our parallel version of the INET Framework can significantly reduce the computation time in city-scale scenarios, and it is completely transparent to the user. When tested in different configurations, our version of INET ensures a reduction in the computation time of up to 43%.","PeriodicalId":335017,"journal":{"name":"2018 IEEE Vehicular Networking Conference (VNC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134003583","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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