2013 13th International Conference on ITS Telecommunications (ITST)最新文献_第5页

Security of Wi-Fi on-board intra-vehicular communication: Field trials of tunnel scenario Wi-Fi车载通信的安全性:隧道场景的现场试验

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685559

S. Soderi, Harri Viittala, Jani Saloranta, M. Hämäläinen, J. Iinatti, A. Gurtov

{"title":"Security of Wi-Fi on-board intra-vehicular communication: Field trials of tunnel scenario","authors":"S. Soderi, Harri Viittala, Jani Saloranta, M. Hämäläinen, J. Iinatti, A. Gurtov","doi":"10.1109/ITST.2013.6685559","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685559","url":null,"abstract":"Wireless communications are increasingly-often selected as a cable replacement for on-board vehicular networks. When a wireless technology implements safety critical application, cryptographic countermeasures are required. This paper describes the impact of security on intra-vehicular communication in a real tunnel scenario, e.g. for urban transit or mining vehicles where the usage of security is mandatory in order to maintain the system safety. The measurement campaign was carried out in a sport ski-tunnel using commercial off-the-shelf (COTS) Wi-Fi modules. The objective was to understand the impact of overhead on security in a tunnel considering line-of-sight (LOS) and non-LOS (NLOS) scenarios. In addition, the study compared different solutions for security to evaluating lesser known protocols. These field trials showed that wireless security is feasible up to 300 m in NLOS without repeaters. Finally, the experiment presented confirms the effectiveness of the Host Identity Protocol when used as standalone or in combination with other security solution.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"105 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":"116266546","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

Estimation of road roughness condition from smartphones under realistic settings 从智能手机估计现实设置下的道路粗糙度状况

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685585

Viengnam Douangphachanh, H. Oneyama

{"title":"Estimation of road roughness condition from smartphones under realistic settings","authors":"Viengnam Douangphachanh, H. Oneyama","doi":"10.1109/ITST.2013.6685585","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685585","url":null,"abstract":"Almost every today's smartphone is integrated with many useful sensors. The sensors are originally designed to make the smartphones' user interface and applications more convenient and appealing. These sensors, moreover, are potentially useful for many other applications in different fields. Using smartphone sensors to estimate road roughness condition may be also possible, since many similar sensors are already in use in many sophisticated road roughness profilers. This study explores the use of data, collected by sensors from smartphones under realistic settings in which the smartphones are placed at more realistic locations and under realistic manner inside a moving vehicle, to evaluate its relationship with the actual road pavement roughness. An experiment has been conducted to collect data from smartphone acceleration and GPS sensors; frequency domain analysis is also carried out. It has been revealed that the data from smartphone accelerometers has a linear relationship with road roughness condition, whereas the strength of the relationship varies at different frequency ranges. The results of this paper also confirm that smartphone sensors have a great potential to be used for estimating the current status of the road pavement condition.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"39 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":"116990086","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: 60

6LoWPAN conform ITS-Station for non safety-critical services and applications lowpan符合ITS-Station非安全关键服务和应用

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685584

Giovanni Pellerano, M. Falcitelli, M. Petracca, P. Pagano

引用次数: 6

Analysis of Cooperative Awareness Message rates in VANETs VANETs中协同感知消息率分析

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685513

J. Breu, A. Brakemeier, M. Menth

引用次数: 23

Performance analysis of real-time streaming under TCP and UDP in VANET via OMNET 基于OMNET的VANET中TCP和UDP协议下实时流的性能分析

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685531

Jun-Li Kuo, Chen-Hua Shih, Yaw-Chung Chen

引用次数: 11

Impact of the traffic load on performance of an alternative LTE railway communication network 交通负荷对替代LTE铁路通信网络性能的影响

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685579

Aleksander Sniady, José Soler

引用次数: 10

Fast and Reliable Hybrid routing for Vehicular Ad hoc Networks 车载自组织网络快速可靠的混合路由

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685515

Gubran Al-Kubati, A. Al-Dubai, L. Mackenzie, D. Pezaros

{"title":"Fast and Reliable Hybrid routing for Vehicular Ad hoc Networks","authors":"Gubran Al-Kubati, A. Al-Dubai, L. Mackenzie, D. Pezaros","doi":"10.1109/ITST.2013.6685515","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685515","url":null,"abstract":"Intelligent Transportation Systems (ITSs) have been attracting tremendous attention in both academia and industry due to emerging applications that pave the way towards safer enjoyable journeys and inclusive digital partnerships. Undoubtedly, these ITS applications will demand robust routing protocols that not only focus on Inter-Vehicle Communications but also on providing fast, reliable, and secure access to the infrastructure. In this paper, we propose a Fast and Reliable Hybrid routing (FRHR) protocol for efficient infrastructure access which is capable of handling efficient vehicle to vehicle communications. Interface to infrastructure is provided by carefully placed RoadSide Units (RSUs) which broadcast beacons in a multi-hop fashion in constrained areas. This enables vehicles proactively to maintain fresh minimum-delay routes to other RSUs while reactively discovering routes to nearby vehicles. The proposed protocol utilizes RSUs connected to the wired backbone network to relay packets toward remote vehicles. A vehicle selects an RSU to register with according to the expected mean delay instead of the device's remoteness. We demonstrate the efficiency and robustness of the routing protocol through simulation experiments performed with accurate mobility and propagation models.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"114 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":"123766694","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: 7

Bandwidth efficient turbo coded OFDM systems 带宽高效的涡轮编码OFDM系统

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685594

U. C. Samal, K. Vasudevan

{"title":"Bandwidth efficient turbo coded OFDM systems","authors":"U. C. Samal, K. Vasudevan","doi":"10.1109/ITST.2013.6685594","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685594","url":null,"abstract":"In this paper, bandwidth efficient turbo codes, commonly known as turbo trellis coded modulation (TTCM) is used in orthogonal frequency division multiplexed (OFDM) systems. It improves the error performance and spectral efficiency simultaneously, which are the major requirements for modern communication systems. The throughput can be improved by puncturing. In addition to TTCM, data interleaver (DI) is incorporated to boost the performance of the system further. BCJR algorithm is used at the receiver to decode iteratively the received turbo trellis coded interleaved OFDM signals. Frequency selective Rayleigh fading channel in presence of additive white Gaussian noise (AWGN) and frequency offset is considered. To the best of the authors' knowledge there is only one earlier work, which simultaneously addresses the problem of timing and carrier synchronization, channel estimation and turbo decoding of OFDM signals transmitted through frequency selective Rayleigh fading channels. This paper is an extension of the earlier work wherein the code rate is increased from half to unity using puncturing and TTCM. Therefore our baseline for comparison is the ideal coherent receiver.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"38 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":"126786595","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: 5

A real-time seamless WYSIWYAS navigation system for smart devices 用于智能设备的实时无缝WYSIWYAS导航系统

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685539

Y. Takatori, Hideya Takeo

引用次数: 1

Impact of LTE precoding for fixed and adaptive rank transmission in moving relay node system LTE预编码对移动中继节点系统中固定和自适应等级传输的影响

2013 13th International Conference on ITS Telecommunications (ITST) Pub Date : 2013-12-19 DOI: 10.1109/ITST.2013.6685554

Ayotunde O. Laiyemo, P. Pirinen, M. Latva-aho, Jaakko Vihriälä, V. Phan

{"title":"Impact of LTE precoding for fixed and adaptive rank transmission in moving relay node system","authors":"Ayotunde O. Laiyemo, P. Pirinen, M. Latva-aho, Jaakko Vihriälä, V. Phan","doi":"10.1109/ITST.2013.6685554","DOIUrl":"https://doi.org/10.1109/ITST.2013.6685554","url":null,"abstract":"Improved capacity and reliability of wireless networks can be achieved by users onboard in a high speed train with the use of moving relay nodes (MRN) cooperating with each other. Further improvement in performance is achieved with codebook based precoders adopted by third generation partnership project (3GPP) for spatial multiplexed transmission mode. Open loop and closed loop precoded spatial multiplexing for fixed and adaptive rank transmissions were simulated and analyzed on the backhaul link of a cooperative MRN system in a high speed train. To obtain improved performance, channel information in the form of precoder matrix indicator (PMI) and rank indicator (RI) are required for the closed loop operation while the RI is only needed for the open loop operation. The results show that throughput gain on the backhaul link of the cooperative MRN system can be achieved with the precoded transmission when compared to unprecoded spatial multiplexing transmission. Further improvement in throughput was achieved when the transmission rank changed dynamically according to the channel condition.","PeriodicalId":117087,"journal":{"name":"2013 13th International Conference on ITS Telecommunications (ITST)","volume":"10 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":"129379978","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: 6