2013 13th International Conference on ITS Telecommunications (ITST)最新文献_第2页

Development of ERESS in panic-type disasters: Disaster recognition algorithm by buffering-SVM 基于缓冲支持向量机的灾难识别算法在恐慌型灾害中的发展

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685569

K. Mori, Takahumi Nakamura, Jun Fujimura, K. Tsudaka, T. Wada, H. Okada, K. Ohtsuki

{"title":"Development of ERESS in panic-type disasters: Disaster recognition algorithm by buffering-SVM","authors":"K. Mori, Takahumi Nakamura, Jun Fujimura, K. Tsudaka, T. Wada, H. Okada, K. Ohtsuki","doi":"10.1109/ITST.2013.6685569","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685569","url":null,"abstract":"Many people have faced mortal risks due to sudden disasters such as fires, earthquakes, and terrorisms all over the world. To solve this kind of problems, we are developing ERESS (Emergency Rescue Evacuation Support System). This system consists of only mobile terminals with various sensors. In ERESS, these sensor data are exchanged and analyzed using only ad-hoc communication among nearby mobile terminals. ERESS aims to reduce the number of victims by supporting real-time evacuation in the critical situation for less than 30 seconds immediately after disaster outbreaks. The conventional ERESS recognized the disaster outbreaks by behavior analysis of terminal holders from sensor data using SVM (Support Vector Machine). However, there was a problem that it is difficult to obtain high reliability of judging disaster outbreak. In this paper, we propose a new method by buffering judgment results of SVM. We carry out experiments on the emergency evacuation with more than 200 examinees. We investigate the judgment accuracy of the proposed method and the time required for recognition of disaster outbreak.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114938253","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: 4

Performance of the max-dmin precoder in impulsive noise for railway communications in tunnels 隧道铁路通信脉冲噪声下最大差分预编码器的性能研究

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685578

Jean-Marc Kwadjane, B. Vrigneau, C. Langlais, Y. Cocheril, M. Berbineau

{"title":"Performance of the max-dmin precoder in impulsive noise for railway communications in tunnels","authors":"Jean-Marc Kwadjane, B. Vrigneau, C. Langlais, Y. Cocheril, M. Berbineau","doi":"10.1109/ITST.2013.6685578","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685578","url":null,"abstract":"In this paper, we investigate the bit error rate (BER) performance of the max-dmin MIMO precoder in presence of impulsive noise in a railway tunnel. Measurements showed that the received signal at the antenna on the moving train roof near the catenary suffers from electromagnetic noise interference (EMI). This implies that the traditional Gaussian noise model is no longer valid and an impulsive noise model should be considered. Based on this observation, we analyze the performance of the max-dmin MIMO precoding technique, based on the minimum distance criterion, with impulsive noise modeled as an alpha-stable distribution. We present two points of interest: i) an approximation of the error probability of the max-dmin precoder, applied to the MIMO context in tunnel, in the presence of heavy tailed alpha-stable impulsive noise, and ii) the performance evaluation, in terms of bit error rate, of a complete communication system, considering a MIMO channel model in tunnel and impulsive noise, both obtained by measurements. Two soft detection techniques, providing the soft decisions to the channel decoder, are proposed, based on the approximation of the impulsive noise by either a Gaussian or a Cauchy law.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123690487","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: 4

An overhead analysis of Access Network Query Protocol (ANQP) in hotspot 2.0 Wi-Fi networks 热点2.0 Wi-Fi网络中接入网查询协议(ANQP)开销分析

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685557

V. Lavrukhin

引用次数: 10

Insights in costing of continuous broadband internet on trains to allow delivering value via services 列车上持续宽带网络的成本分析，以便通过服务提供价值

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685581

Bram Naudts, J. V. Ooteghem, S. Verbrugge, D. Colle, M. Pickavet

{"title":"Insights in costing of continuous broadband internet on trains to allow delivering value via services","authors":"Bram Naudts, J. V. Ooteghem, S. Verbrugge, D. Colle, M. Pickavet","doi":"10.1109/ITST.2013.6685581","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685581","url":null,"abstract":"Continuous broadband Internet on trains is at the moment being deployed worldwide but not always profitable. Solely providing internet for travellers will have a negative return on investment. But, different service providers could be interested to share the unused capacity of resources deployed to offer other services. In this way, resources and their costs are shared over several services and revenues may rise above the total cost. Service operators should therefore be able to make well informed decisions based on an ex-ante estimate of the cost of a service. Using activity based costing (ABC), we investigate on the one hand how to determine the total cost of resources supplied and on the other how to estimate the cost of consumed resources of a service. Our results show that ABC can adequately cope with the case specific nature of the rollout of services on a train. ABC provides insights in the contributors to the cost per service and the unused capacity. Moreover, obtained results can be used to distribute the cost based on the usage of resources, activities and services, evaluate the service mix and identify candidates for outsourcing. Still, ABC does not give insight in how the unused capacity of a resource should be allocated. The optimal allocation of unused capacity will therefore remain the focus of future work.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126993284","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 study on position tracking system for pedestrian navigation using location and sensor information 基于位置和传感器信息的行人导航位置跟踪系统研究

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685570

M. Fujii, Ryo Ogawara, Hiroyuki Hatano, Yu Watanabe

{"title":"A study on position tracking system for pedestrian navigation using location and sensor information","authors":"M. Fujii, Ryo Ogawara, Hiroyuki Hatano, Yu Watanabe","doi":"10.1109/ITST.2013.6685570","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685570","url":null,"abstract":"Recently, we can use various network connections at several location using mobile terminals. Services by using location information expand for the mobile terminals. For these services, we need to estimate the location of the moving mobile devices. It is well-known that we can use the GPS in order to obtain the absolute position of the terminal. On the other hand, we can employ dead-reckoning methods adopted by the conventional car navigation system using builtin sensors to obtain the relative movement of the terminal. The latest mobile terminals such as smart phone are equipped with some sensors to capture the behavior of the terminal. In this paper, we propose a new location estimation method which combines the absolute position information by the GPS with the relative movement information by the sensors. We evaluate the proposed method in terms of the estimation accuracy by field experiments when we adopt the Kalman filter algorithm by combining the absolute location and the relative movement information. From the results of our field experiments, we show that the proposed method using the sensor information outperforms the conventional one without it.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121768890","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 geometry based stochastic model for MIMO V2V channel simulation in cross-junction scenario 交叉路口MIMO V2V信道仿真的几何随机模型

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685561

Andreas Theodorakopoulos, P. Papaioannou, T. Abbas, F. Tufvesson

{"title":"A geometry based stochastic model for MIMO V2V channel simulation in cross-junction scenario","authors":"Andreas Theodorakopoulos, P. Papaioannou, T. Abbas, F. Tufvesson","doi":"10.1109/ITST.2013.6685561","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685561","url":null,"abstract":"In this paper a multiple-input multiple-output (MIMO) simulation model for vehicle-to-vehicle (V2V) communication channels in an urban cross-junction scenario is presented. The model is an extension and modification of an existing T-junction model in the literature. Four propagation processes are considered: line-of-sight (LOS), single bounce reflections from side walls, double bounce reflections from side walls, and single bounce reflections from the corner of the building in front of the transmitter (TX) and receiver (RX). Each propagation process is linked to a cluster of scatterers, with a cluster size that varies with respect to the position of the TX and RX. The relations between angle-of-arrivals and angle-of-departures of all Multipath Components (MPCs) are derived depending on the different positions of the TX and RX. For the single bounce reflections from the corner a new method is being used where the scatterers are distributed randomly in a triangular plane, based on the assumption that corners of buildings typically have different scattering objects contributing to the reflection process. A complete expression for the time-variant transfer function is then derived by super positioning all contributions, including the LOS when this is available. The final results show that our model follows a realistic measurement based path-loss model, which subsequently makes the model a suitable candidate for analyzing MIMO V2V fading channels in cross-junction scattering environments.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129570065","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: 16

A proposal of the rendezvous navigation system 交会导航系统的一种方案

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685574

T. Nagaosa, S. Hozumi

引用次数: 2

Vehicle speed estimation using video data and acceleration information of a drive recorder 利用行车记录仪的视频数据和加速度信息进行车速估计

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685538

Kazuki Osamura, A. Yumoto, Osafumi Nakayama

{"title":"Vehicle speed estimation using video data and acceleration information of a drive recorder","authors":"Kazuki Osamura, A. Yumoto, Osafumi Nakayama","doi":"10.1109/ITST.2013.6685538","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685538","url":null,"abstract":"A drive recorder (DR) is installed in many vehicles to record information about car accidents. Recently, images and vehicle behavior data captured with DR is being used with increasing frequency to analyze dangerous driving behaviors and visualize the conditions in which this behavior occurs. Essential to this risk analysis is identifying the dangerous situation and obtaining information on the circumstances at the time, which must include precise vehicle speed information for analyzing detailed dangerous car motions such as rapid deceleration. Today, instead of high-precision speed pulse generator DR, many simple DR that record vehicle speeds captured by GPS are used, because they are easy to use without being connected to the car electronics. While these GPS-type DR are accurate enough for recording purposes, they are insufficient for analysis purposes, which hamper using DR for analysis in many cases. This study proposes a method that estimates precise vehicle speeds using images and acceleration data captured by simple DR. Most vehicle speed estimation methods calculate the velocity by estimating the vehicle motion that is represented by the motion flow of feature points in images. Maintaining the estimation accuracy requires obtaining these flow data from entire images. However, images captured by DR include few feature points of road surfaces that occupy the lower half of images and provide skewed feature-point flow position distributions, leading to a decrease in the accuracy of the speed estimation. The proposed method uses acceleration information, which is unique to DR, to calculate the area in which the vehicle can possibly move around, and restrict the image flow analysis to within this area. This can overcome skewed flow distributions to estimate the vehicle speed accurately. It was verified in actual running experiments that the proposed method significantly improves the accuracy of vehicle speed estimation compared with previous methods.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120952129","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: 12

Influence of radio communications on multiple intersection control by a wireless sensor network 无线电通信对无线传感器网络多路口控制的影响

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685564

S. Faye, Claude Chaudet, I. Demeure

引用次数: 7

Detection and visualization of potential traffic hotspots in urban environments 城市环境中潜在交通热点的检测和可视化

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685526

Enrique Puertas, Javier Fernández, M. L. Morales-Botello, N. Aliane

引用次数: 6