Pub Date : 2011-10-27DOI: 10.1109/ITST.2011.6060082
Åsa Viklund, Katarina Appeltofft
In order to increase the safety for children, with help of a higher degree of control and routine during school transport, an EU-project, SAFEWAY2SCHOOL1, started in 2010. This project aims to take the previous study, made in 2008 in Kristianstad, a step further and highlight and enhance the technological aspects of different subsystems in order to achieve a system even more useful. Within the project evaluation of a holistic concept will be done, one of them in the Swedish municipality Örnsköldsvik. In total five buses will be equipped with technical safety solutions. Communication between the system and children will be solved by children wearing a tag that transmit information to the bus unit, making it possible for the system and the driver to know if the child is on their way to the bus. The tag will also be connected to a bus stop unit, warning passing drivers. This system will handle, safe route planning, rerouting of routes, school bus position tracking and monitoring, safety enhancement applications for bus drivers, warning systems for surrounding vehicles and training schemes for school bus drivers. The evaluation will focus on usefulness, effectiveness, acceptance in a user perspective. In addition socio-economic analysis will be done.
{"title":"Experiences from an application for safe transport to and from school: A step toward SAFEWAY2SCHOOL","authors":"Åsa Viklund, Katarina Appeltofft","doi":"10.1109/ITST.2011.6060082","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060082","url":null,"abstract":"In order to increase the safety for children, with help of a higher degree of control and routine during school transport, an EU-project, SAFEWAY2SCHOOL1, started in 2010. This project aims to take the previous study, made in 2008 in Kristianstad, a step further and highlight and enhance the technological aspects of different subsystems in order to achieve a system even more useful. Within the project evaluation of a holistic concept will be done, one of them in the Swedish municipality Örnsköldsvik. In total five buses will be equipped with technical safety solutions. Communication between the system and children will be solved by children wearing a tag that transmit information to the bus unit, making it possible for the system and the driver to know if the child is on their way to the bus. The tag will also be connected to a bus stop unit, warning passing drivers. This system will handle, safe route planning, rerouting of routes, school bus position tracking and monitoring, safety enhancement applications for bus drivers, warning systems for surrounding vehicles and training schemes for school bus drivers. The evaluation will focus on usefulness, effectiveness, acceptance in a user perspective. In addition socio-economic analysis will be done.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123708295","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060099
Haifa Fares, Sidi Ould Mohamed, C. Langlais, Alexandre Graell i Amat, M. Berbineau
Multiple-input multiple-output (MIMO) systems can be adopted in cooperative wireless networks to bring further space diversity or/and to improve the throughput of the system. In this paper, we evaluate the performance of MIMO applied to a turbo coded cooperation system. The considered system is studied under two scenarios where the sources transmit over either orthogonal channels or non-orthogonal channels. For the latter, interleave-division multiple-access (IDMA) is used for multi-source detection. We evaluate the performance improvement in terms of reliability (frame error rate) and efficiency (throughput efficiency), and determine the channel conditions where adopting MIMO in addition to cooperation is beneficial.
{"title":"MIMO systems for turbo coded cooperation over orthogonal and non-orthogonal channels","authors":"Haifa Fares, Sidi Ould Mohamed, C. Langlais, Alexandre Graell i Amat, M. Berbineau","doi":"10.1109/ITST.2011.6060099","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060099","url":null,"abstract":"Multiple-input multiple-output (MIMO) systems can be adopted in cooperative wireless networks to bring further space diversity or/and to improve the throughput of the system. In this paper, we evaluate the performance of MIMO applied to a turbo coded cooperation system. The considered system is studied under two scenarios where the sources transmit over either orthogonal channels or non-orthogonal channels. For the latter, interleave-division multiple-access (IDMA) is used for multi-source detection. We evaluate the performance improvement in terms of reliability (frame error rate) and efficiency (throughput efficiency), and determine the channel conditions where adopting MIMO in addition to cooperation is beneficial.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125258482","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060141
J. A. Castiblanco, D. Seetharamdoo, M. Berbineau, M. Ney, F. Gallée
This paper presents the application of the modal theory for determining antenna positioning in the railway environment. An original technique based on the Transmission Line Matrix method (TLM) for the analysis of guided structures is used to model propagation in arbitrary-shaped tunnels. Wave propagation in a rectangular tunnel with lossy dielectric walls is then studied and optimum field specifications in terms of optimum electric or magnetic field and best position for exciting the structure show that this algorithm is suitable for obtaining antenna field specifications in tunnels at high frequencies.
{"title":"Determination of antenna specification and positioning for efficient railway communication in tunnels of arbitrary cross section","authors":"J. A. Castiblanco, D. Seetharamdoo, M. Berbineau, M. Ney, F. Gallée","doi":"10.1109/ITST.2011.6060141","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060141","url":null,"abstract":"This paper presents the application of the modal theory for determining antenna positioning in the railway environment. An original technique based on the Transmission Line Matrix method (TLM) for the analysis of guided structures is used to model propagation in arbitrary-shaped tunnels. Wave propagation in a rectangular tunnel with lossy dielectric walls is then studied and optimum field specifications in terms of optimum electric or magnetic field and best position for exciting the structure show that this algorithm is suitable for obtaining antenna field specifications in tunnels at high frequencies.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"17 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126966755","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060052
Maicke C. G. Paula, J. Rodrigues, João A. Dias, João N. Isento, Lei Shu
Vehicular communications emerged as a modern alternative to increase road traffic safety and also promote, through technologies, the development of applications and services to the travelers. In this context, Vehicular Delay Tolerant Networks (VDTNs) arise as innovative solution since it presents an appropriate network architecture, supporting communication in intermittent situations. This work presents an embedded VDTN testbed created to evaluate safety systems in a real-world scenario. A traffic jam information service will be executed to demonstrate basics characteristics of VDTN, like out-of-band signaling and IP over VDTN. The main contributions of this paper consider the presentation of an appropriate hardware and software to embedded application for VDTNs, network performance evaluation over different environments, and corresponding results analysis using diverse metrics.
{"title":"An embedded VDTN testbed for the evaluation of vehicular safety systems","authors":"Maicke C. G. Paula, J. Rodrigues, João A. Dias, João N. Isento, Lei Shu","doi":"10.1109/ITST.2011.6060052","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060052","url":null,"abstract":"Vehicular communications emerged as a modern alternative to increase road traffic safety and also promote, through technologies, the development of applications and services to the travelers. In this context, Vehicular Delay Tolerant Networks (VDTNs) arise as innovative solution since it presents an appropriate network architecture, supporting communication in intermittent situations. This work presents an embedded VDTN testbed created to evaluate safety systems in a real-world scenario. A traffic jam information service will be executed to demonstrate basics characteristics of VDTN, like out-of-band signaling and IP over VDTN. The main contributions of this paper consider the presentation of an appropriate hardware and software to embedded application for VDTNs, network performance evaluation over different environments, and corresponding results analysis using diverse metrics.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122991010","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060124
Guoxia Zhang, Fuqiang Liu
In this paper, we propose a group handover scheme in heterogeneous vehicular networks, which seeks to not only maximize system throughput but also make sure the load of all candidate access networks are maintained at the target load level. With mobility prediction information, we formulate the handover scheme as a multi-assignment problem, and develop an auction-based method to solve such problem. Through detailed simulations, we have shown that our proposed algorithm performs much better than the conventional scheme based on the SSF method.
{"title":"An auction approach to group handover with mobility prediction in heterogeneous vehicular networks","authors":"Guoxia Zhang, Fuqiang Liu","doi":"10.1109/ITST.2011.6060124","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060124","url":null,"abstract":"In this paper, we propose a group handover scheme in heterogeneous vehicular networks, which seeks to not only maximize system throughput but also make sure the load of all candidate access networks are maintained at the target load level. With mobility prediction information, we formulate the handover scheme as a multi-assignment problem, and develop an auction-based method to solve such problem. Through detailed simulations, we have shown that our proposed algorithm performs much better than the conventional scheme based on the SSF method.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122092831","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060145
Taisei Tokuda, Masaki Suzuki, Shohei Kanda, H. Shigeno
Recently, there has been considerable research on ITS(Intelligent Transport System). The platooning of some trucks on the express way is discussed widely as an important part of ITS application. In order to organize the platooning, it is required to converge each other. However, because the sequence of converging from wide area depends on the driver's decision and there is no basis velocity for converging, it is potentially difficult to achieve efficient convergence for platooning. In this paper, we propose a velocity decision algorithm for platoon and it has two main components. The one is decision the sequence of converging and the other is call into account whether a platoon relevant truck can converge each others. We implemented and evaluated our proposition in comparison to simple converging method by computer simulation. As the result, we show that our proposal have efficacy as converging for platooning.
{"title":"Velocity decision algorithm for platooning based on converging sequence and converging possibility","authors":"Taisei Tokuda, Masaki Suzuki, Shohei Kanda, H. Shigeno","doi":"10.1109/ITST.2011.6060145","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060145","url":null,"abstract":"Recently, there has been considerable research on ITS(Intelligent Transport System). The platooning of some trucks on the express way is discussed widely as an important part of ITS application. In order to organize the platooning, it is required to converge each other. However, because the sequence of converging from wide area depends on the driver's decision and there is no basis velocity for converging, it is potentially difficult to achieve efficient convergence for platooning. In this paper, we propose a velocity decision algorithm for platoon and it has two main components. The one is decision the sequence of converging and the other is call into account whether a platoon relevant truck can converge each others. We implemented and evaluated our proposition in comparison to simple converging method by computer simulation. As the result, we show that our proposal have efficacy as converging for platooning.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126841001","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060125
Chi-Sheng Lin, Jia-Chin Lin
Novel techniques of Road Side Unit (RSU) selection for handover were investigated in this study. It was determined that there are currently no efficient RSU selection schemes, which is a severe issue for conventional techniques following the current IEEE 802.11p standard. Recently, data-aided OFDM (DA-OFDM), such as Pseudo-Random-Postfix-OFDM (PRP-OFDM) and Time Domain Synchronous-OFDM (TDS-OFDM), have received attention because of their capability for higher effectiveness with better transmission quality. This study derived the maximum likelihood (ML) channel estimation for DA-OFDM and evaluated and compared proposed techniques by computer simulations.
{"title":"Handover in vehicular communication networks","authors":"Chi-Sheng Lin, Jia-Chin Lin","doi":"10.1109/ITST.2011.6060125","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060125","url":null,"abstract":"Novel techniques of Road Side Unit (RSU) selection for handover were investigated in this study. It was determined that there are currently no efficient RSU selection schemes, which is a severe issue for conventional techniques following the current IEEE 802.11p standard. Recently, data-aided OFDM (DA-OFDM), such as Pseudo-Random-Postfix-OFDM (PRP-OFDM) and Time Domain Synchronous-OFDM (TDS-OFDM), have received attention because of their capability for higher effectiveness with better transmission quality. This study derived the maximum likelihood (ML) channel estimation for DA-OFDM and evaluated and compared proposed techniques by computer simulations.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123985001","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060071
J. Kovács, L. Bokor, G. Jeney
In this document we show the evaluation of an already introduced handover management solution which can be used to provide ubiquitous connections and seamless Internet access. The new solution makes use of GNSS location information and previous records of network parameters. The method exploits the benefits of multihomed mobility configurations. Based on actual GNSS coordinates and previously recorded data, the system is able to predict handovers and to prepare itself for the appearance of networks. By implementing the proposed solution in a real-life multihomed test environment, handover latency is almost totally eliminated.
{"title":"Performance evaluation of GNSS aided predictive multihomed NEMO configurations","authors":"J. Kovács, L. Bokor, G. Jeney","doi":"10.1109/ITST.2011.6060071","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060071","url":null,"abstract":"In this document we show the evaluation of an already introduced handover management solution which can be used to provide ubiquitous connections and seamless Internet access. The new solution makes use of GNSS location information and previous records of network parameters. The method exploits the benefits of multihomed mobility configurations. Based on actual GNSS coordinates and previously recorded data, the system is able to predict handovers and to prepare itself for the appearance of networks. By implementing the proposed solution in a real-life multihomed test environment, handover latency is almost totally eliminated.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127890124","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060084
H. Menouar, F. Filali, A. Abu-Dayya
Car to car communication has been getting a considerable interest from both industry and academia since the last decades, and especially the last years where the market introduction phase is approaching fast. Several useful applications will be enabled by car to car communication, such as safety applications that save drivers and passengers' lives, traffic efficiency applications that improve the traffic on the road and finally infotainment applications that provide more comfort in the car and on the road. All these applications rely on efficient and reliable cooperation between vehicles, which could be enabled only by efficient and reliable ITS systems. These systems will need to handle a huge amount of information which is received from vehicles and road equipments. Therefore, a good system to classify and store locally all this wonderful information for further utilization, needs to be considered seriously. ETSI TC ITS architecture adopts a nice solution for this issue and use Local Dynamic Map (LDM), which stores information in different layers on top of a digital map. The LDM solution has already been tested in several occasions and it has proven its efficiency. Even that, LDM still has some open issues that need more efforts to be solved and/or enhanced. One of these issues has not been considered yet by ongoing activities in the area is the unnecessary duplication of information in the LDM database. In this work, we come-out with an efficient solution to solve this issue, which enables a unique identifier per each event and therefore eliminates events (information) duplication in the LDM database. As active member in ETSI TC ITS, we will also bring this solution to ETSI to be integrated in the still ongoing ITS standards.
{"title":"Efficient and unique identifier for V2X events aggregation in the Local Dynamic Map","authors":"H. Menouar, F. Filali, A. Abu-Dayya","doi":"10.1109/ITST.2011.6060084","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060084","url":null,"abstract":"Car to car communication has been getting a considerable interest from both industry and academia since the last decades, and especially the last years where the market introduction phase is approaching fast. Several useful applications will be enabled by car to car communication, such as safety applications that save drivers and passengers' lives, traffic efficiency applications that improve the traffic on the road and finally infotainment applications that provide more comfort in the car and on the road. All these applications rely on efficient and reliable cooperation between vehicles, which could be enabled only by efficient and reliable ITS systems. These systems will need to handle a huge amount of information which is received from vehicles and road equipments. Therefore, a good system to classify and store locally all this wonderful information for further utilization, needs to be considered seriously. ETSI TC ITS architecture adopts a nice solution for this issue and use Local Dynamic Map (LDM), which stores information in different layers on top of a digital map. The LDM solution has already been tested in several occasions and it has proven its efficiency. Even that, LDM still has some open issues that need more efforts to be solved and/or enhanced. One of these issues has not been considered yet by ongoing activities in the area is the unnecessary duplication of information in the LDM database. In this work, we come-out with an efficient solution to solve this issue, which enables a unique identifier per each event and therefore eliminates events (information) duplication in the LDM database. As active member in ETSI TC ITS, we will also bring this solution to ETSI to be integrated in the still ongoing ITS standards.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115321897","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 : 2011-10-27DOI: 10.1109/ITST.2011.6060167
I. Ivan, P. Besnier, Xavier Bunion, L. Le Danvic, M. Drissi
Propagation channel models play an essential role for proper computer performance evaluation of the Vehicle to Vehicle, and Vehicle to Infrastructure (V2X) communication systems. Several stochastic, tapped delay line channel models are proposed in the literature. These involve either Rice and Rayleigh distributed taps or Weibull distributed, correlated, and non-stationary taps. This paper focuses on the latter case. It discusses methods for simulating the Weibull fading complex envelope, and suggests the necessity to deal with a non-uniform phase distribution in order to assess the performance level of the V2X communication.
{"title":"On the simulation of Weibull fading for V2X communications","authors":"I. Ivan, P. Besnier, Xavier Bunion, L. Le Danvic, M. Drissi","doi":"10.1109/ITST.2011.6060167","DOIUrl":"https://doi.org/10.1109/ITST.2011.6060167","url":null,"abstract":"Propagation channel models play an essential role for proper computer performance evaluation of the Vehicle to Vehicle, and Vehicle to Infrastructure (V2X) communication systems. Several stochastic, tapped delay line channel models are proposed in the literature. These involve either Rice and Rayleigh distributed taps or Weibull distributed, correlated, and non-stationary taps. This paper focuses on the latter case. It discusses methods for simulating the Weibull fading complex envelope, and suggests the necessity to deal with a non-uniform phase distribution in order to assess the performance level of the V2X communication.","PeriodicalId":220290,"journal":{"name":"2011 11th International Conference on ITS Telecommunications","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115568998","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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