{"title":"Optimal roadside unit deployment in vehicle-to-infrastructure communications","authors":"Po-Chiang Lin","doi":"10.1109/ITST.2012.6425291","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425291","url":null,"abstract":"In vehicular communications, roadside units are the key components to collect/disseminate information from/to vehicles. In this paper we investigate the roadside unit deployment problem in vehicle-to-infrastructure communications. This problem is formulated as a constrained optimization problem with the objective to minimize the deployment cost subject to the constraints that all service areas should be covered. The roadside unit deployment problem under consideration is a binary integer programming problem. We solve it by the branch and bound method which could effectively reduce the complexity.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134485848","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}
M. Fujioka, Masanori Takahashi, Takeshi Matsumura, Chunmeng Wang, Hiroyuki Hirakoba
{"title":"Field trial of cellular warning for automobiles using geomessaging in Japan","authors":"M. Fujioka, Masanori Takahashi, Takeshi Matsumura, Chunmeng Wang, Hiroyuki Hirakoba","doi":"10.1109/ITST.2012.6425228","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425228","url":null,"abstract":"This paper summarizes the background, set-up and results of natural disaster and emergency vehicle warning field trial executed as part of a national Green ITS project in Japan. We used a commercial mobile network as the communication media and ordinary smartphones as terminals for the trial. We used the technique called “geomessaging” developed by Ericsson to identify those cars in the target area to which warning should be sent. The field trial went well and we could get the results as expected but we also found several technical and practical issues.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133820598","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}
{"title":"Reducing the environmental impact of taxi operation: The taxi-sharing use case","authors":"P. D’orey, Ricardo Fernandes, Michel Ferreira","doi":"10.1109/ITST.2012.6425191","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425191","url":null,"abstract":"Considering the fast development of urban areas and the increasing environmental awareness, we focus in this paper on a taxi-sharing system for improving the efficiency of public transport. In particular, we present a realistic and large-scale evaluation of the environmental impact of this system. The proposed method improves the efficiency of this form of public transport by determining, on the fly, the best match between taxi user requests, which leads to a reduction of the total and vacant travel distance. Our results show important reductions of CO2 emissions with full deployment of the system, reaching 9% under a higher demand scenario.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131542953","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}
{"title":"A study of DSRC jammer in vehicle safety application testbed","authors":"C. Liang, Bo-Chiuan Chen","doi":"10.1109/ITST.2012.6425169","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425169","url":null,"abstract":"Dedicated Short Range Communication (DSRC) is a key enabling technology for the next generation of communication-based safety applications. One of the important problems for DSRC deployment is maintaining high performance under heavy channel load. Many studies use NS-2 to simulate hundreds vehicles for packet congestion. But in this paper we built on three DSRC WAVE Boxes and one PC. Two devices located in roadside, one located in vehicle. The communication protocol of the DSRC device which set to converter mode is USER Datagram Protocol(UDP). We follow SAE J2735 for message format. The purpose of this standard is to support interoperability among DSRC applications. We installed three WAVE Boxes and PCs in ARTC's test-bed. We set a WAVE Boxes to be a jammer. The jammer can simulate many cars to interfere the communication. After experimented, we can understand the issues needed to consider for the design of the DSRC radio test under heavy channel load, providing the designers for reference in the future not only to solve problems but also help to setup a test-bed for testing DSRC radio under heavy channel load.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132518931","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}
{"title":"Application of MBSE as a support to the definition of the port informer service in the Italian ports","authors":"Lucio Tirone, S. Sorge, Giada Traballesi","doi":"10.1109/ITST.2012.6425222","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425222","url":null,"abstract":"This paper describes an application of the Model Based Systems Engineering (MBSE) approach in a study performed on behalf of the Italian Port Informers Association, with the purpose to provide a solid technical background to the definition of the Port Informer Service (also referred in this paper simply as Service), and to its future evolution. The current Italian legislation does not include such Service neither among the “public utility services” ruled by the Maritime Authority (Coast Guard), nor among the “general interest services” ruled by the Port Authority. The lack of a clear definition of the Service is the source of an uncertain situation, in which the activities of the Port Informers derive from local ordinances issued by the single Harbor Master's Offices (Capitanerie di Porto, local office of the Coast Guard). From a different point of view, the continuous evolution in the technological equipment of the authorities involved in port operations, with systems such as Vessel Traffic Services (VTS), Automatic Identification System (AIS), Port Management and Information System (PMIS) and so on, urges the Port Informers to share a common process of migration, in order to be fully integrated in the exploitation of the opportunities made available by the new technologies. A strong need was thus felt for a new regulation of the services provided by the Port Informers at national level, in order to promote a necessary uniformity in the provision of the Service, and to better support the management of port security, maritime traffic monitoring and navigation security.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"990 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133304989","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}
{"title":"Modulation spectrum exponential weighting for robust speech recognition","authors":"Hao-Teng Fan, Yi-cheng Lian, J. Hung","doi":"10.1109/ITST.2012.6425295","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425295","url":null,"abstract":"In this paper, we present a novel scheme to improve the noise robustness of features in speech recognition for vehicle noise environments. In the algorithm termed modulation spectrum exponential weighting (MSEW), the magnitude spectra of feature streams are updated by integrating a reference magnitude spectrum and the original magnitude spectrum with varying exponential weights based on the signal-to-noise ratio (SNR) of the operating environment. Specifically, we present three modes of MSEW, which can be viewed as a generalization of the two algorithms, modulation spectrum replacement/filtering (MSR/MSF). In experiments conducted on the AURORA-2 noisy digit database, the presented MSEW algorithms can achieve better recognition accuracy rates relative to the original MSR and MSF in various vehicle-noise environments.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116318346","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}
{"title":"Bandwidth aggregation over VANET using the geographic member-centric routing protocol (GMR)","authors":"Chung-Ming Huang, Tzu-Hua Lin, Kuan-Cheng Tseng","doi":"10.1109/ITST.2012.6425279","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425279","url":null,"abstract":"In this paper, we proposed a novel routing protocol called Geographic Member-Centric Routing (GMR) over a VANET that consists of a platoon of vehicles, which have the same starting point, driving route, and destination point, driving in the highway environment. The goal of GMR is to aggregate 3G/3.5G bandwidth from some vehicles called Helpers to a vehicle called Requester, i.e., it belongs to multiple-source single-destination transmission, to have cooperative video streaming service in the platoon of vehicles. For providing a better cooperative video streaming service in the platoon scenario, we (1) utilized the characteristic of platoon mobility, in which platoon members try to drive with each other as close as possible and (2) proposed a member-centric scheme that routes packets through more stable links between platoon members. We also introduced a concept of flow-merging, using which k-hop nodes would forward packets to 1 or more merge-nodes in (k-1)-hop, to reduce interference and packet collision between multiple flows. According to the simulation results, GMR effectively improves the packet delivery ratio and throughput using our proposed member-centric scheme and flow merging scheme. It also shows that the proposed member-centric routing protocol is more suitable than others for 3G/3.5G bandwidth aggregation in the platoon scenario over VANET.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121790021","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}
{"title":"Hybrid gamut mapping and dithering algorithm for image reproduction","authors":"Chang-Jing Yang, Yung-Fang Chen","doi":"10.1109/ITST.2012.6425162","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425162","url":null,"abstract":"This paper discusses the problems and solutions related to the reproduction of color images on displays. We focus on the problems of false contouring and gamut mismatches. A novel system consisting of a post-dithering algorithm and a hybrid gamut mapping algorithm is proposed to deal with the respective problems. The experimental results show that the proposed system mitigates the false contouring and increases the contrast in images.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124723326","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}
A. Paul, Nischit Bharadwaj, Arjun S. Bhat, Sameera Shroff, Venkatesh Seenanna, T. Sitharam
{"title":"Design and prototype of an in-vehicle road sign delivery system using RFID","authors":"A. Paul, Nischit Bharadwaj, Arjun S. Bhat, Sameera Shroff, Venkatesh Seenanna, T. Sitharam","doi":"10.1109/ITST.2012.6425170","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425170","url":null,"abstract":"The following paper documents the development of an RFID based system that alerts vehicle drivers about approaching road oddities at an optimum distance before encountering them. The objective is to design a wireless system that delivers road signs (and other road-related information) to the commuter inside his/her vehicle visually and aurally, at an appropriate distance before encountering the corresponding road aberrations. The final aim is to bring about a change in the current road safety paradigm by providing a more efficient and ergonomic electronic alternative to static road signs. In addition to reducing dependency on road signs, the device will also aid in averting accidents and traffic jams, and in better implementing traffic law and order.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125280459","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}
{"title":"A high-scalable core telematics platform design for intelligent transport systems","authors":"Ing-Xiang Chen, Yen-Ching Wu, I-Ching Liao, Yuan-Ying Hsu","doi":"10.1109/ITST.2012.6425209","DOIUrl":"https://doi.org/10.1109/ITST.2012.6425209","url":null,"abstract":"With the popularization of telecom/consumer electronics, such as on-board units (OBUs) and personal navigational devices (PNDs), telematics services are becoming more important and practicable in our daily lives. Additionally, when the applications of global positioning system (GPS) are ubiquitous today, OBUs/PNDs can provide people with very convenient location-based services (LBS), plus intelligent transport systems (ITS). To support efficient and effective telecommunications between a huge number of devices and the ITS services, a scalable networking platform is hence demanded. In this paper, we present a high-scalable design to support an open architecture platform for telematics services based on international standards. The proposed core telematics platform (CTP) can optimize the data transmission under linearly increased time complexity by employing a high-scalable architecture design when a large number of devices connect to the application servers. The simulations and experimental results have verified the effectiveness and efficiency of this high-scalable CTP design.","PeriodicalId":143706,"journal":{"name":"2012 12th International Conference on ITS Telecommunications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122640755","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}