2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)最新文献

On the Crucial Impact of Antennas and Diversity on BLE RSSI-Based Indoor Localization 天线和分集对基于BLE rssi的室内定位的关键影响

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-06-27 DOI: 10.1109/VTCSpring.2019.8746717

Henry Schulten, M. Kuhn, R. Heyn, Gregor Dumphart, F. Troesch, A. Wittneben

{"title":"On the Crucial Impact of Antennas and Diversity on BLE RSSI-Based Indoor Localization","authors":"Henry Schulten, M. Kuhn, R. Heyn, Gregor Dumphart, F. Troesch, A. Wittneben","doi":"10.1109/VTCSpring.2019.8746717","DOIUrl":"https://doi.org/10.1109/VTCSpring.2019.8746717","url":null,"abstract":"Due to their low complexity, RSSI-based solutions for indoor localization have become increasingly popular in recent years despite lacking the accuracy of more sophisticated localization solutions. One of the main reasons for this lack of accuracy is the highly fluctuating nature of RSSI values as a result of indoor channel characteristics, hardware imperfections and varying antenna radiation patterns. In this paper, we thus critically analyze the log- normal path loss model and its validity with the focus on indoor localization. We show how chip antennas of typical consumer devices affect the RSSI measurements and clarify in what manner this effect can be incorporated into the log-normal model. In this process, we are also able to quantify the impact of small-scale fading and diversity on RSSI-based distance estimation. We furthermore propose a novel calibration scheme that estimates path loss exponents based on a simple training walk and outperforms linear regression in all our use cases. At last, we combine our findings in an implementation of an indoor localization system for a 14×3 m office corridor. On average, our measurements yield a significantly decreased position RMSE of 1.36 m, which compares to the Cramer- Rao lower bound on the position RMSE of 0.71 m in this environment.","PeriodicalId":134773,"journal":{"name":"2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116603989","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: 8

Incremental Hopping-Window Pose-Graph Fusion for Real-Time Vehicle Localization 实时车辆定位的增量跳窗姿态图融合

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-06-27 DOI: 10.1109/VTCSpring.2019.8746464

Anwesha Das, Gijs Dubbelman

引用次数: 2

User Tracking for Access Control with Bluetooth Low Energy 低功耗蓝牙接入控制的用户跟踪

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-06-27 DOI: 10.1109/VTCSpring.2019.8746465

R. Heyn, M. Kuhn, Henry Schulten, Gregor Dumphart, Janick Zwyssig, F. Troesch, A. Wittneben

{"title":"User Tracking for Access Control with Bluetooth Low Energy","authors":"R. Heyn, M. Kuhn, Henry Schulten, Gregor Dumphart, Janick Zwyssig, F. Troesch, A. Wittneben","doi":"10.1109/VTCSpring.2019.8746465","DOIUrl":"https://doi.org/10.1109/VTCSpring.2019.8746465","url":null,"abstract":"The Received Signal Strength Indicator (RSSI) of Bluetooth Low Energy (BLE) is a popular means for indoor user localization and tracking as it reflects the transmitter-receiver distance and is readily available in all current smartphones. Since fading, shadowing and antenna patterns cause severe RSSI fluctuations, many RSSI-based localization systems use fingerprinting instead of parameter estimation based on a channel model (e.g. trilateration from distance estimates). Fingerprinting however requires a large effort for training data acquisition and frequent updates in dynamic environments. In this paper we focus on wireless access control with BLE. We demonstrate that a practical implementation of such a tracking system can meet the typical demands of generic access control problems with low- complexity parameter estimation techniques, namely trilateration and optional Kalman filtering. Thereby, satisfactory accuracy is enabled by diversity (averaging in space, time and frequency), calibration and appropriate observation space modeling. We find that including the RSSI directly in the observation space renders trilateration obsolete, which reduces complexity even further.","PeriodicalId":134773,"journal":{"name":"2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131378432","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: 3

On the Multiplexing of Broadband Traffic and Grant-Free Ultra-Reliable Communication in Uplink 宽带业务复用与上行链路无授权超可靠通信研究

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-06-27 DOI: 10.1109/VTCSpring.2019.8746589

Renato B. Abreu, Thomas H. Jacobsen, Gilberto Berardinelli, K. Pedersen, N. Mahmood, I. Kovács, P. Mogensen

{"title":"On the Multiplexing of Broadband Traffic and Grant-Free Ultra-Reliable Communication in Uplink","authors":"Renato B. Abreu, Thomas H. Jacobsen, Gilberto Berardinelli, K. Pedersen, N. Mahmood, I. Kovács, P. Mogensen","doi":"10.1109/VTCSpring.2019.8746589","DOIUrl":"https://doi.org/10.1109/VTCSpring.2019.8746589","url":null,"abstract":"5G networks should support heterogeneous services with an efficient usage of the radio resources, while meeting the distinct requirements of each service class. We consider the problem of multiplexing enhanced mobile broadband (eMBB) traffic, and grant-free ultra-reliable low-latency communications (URLLC) in uplink. Two multiplexing options are considered; either eMBB and grant-free URLLC are transmitted in separate frequency bands to avoid their mutual interference, or both traffic share the available bandwidth leading to overlaying transmissions. This work presents an approach to evaluate the supported loads for URLLC and eMBB in different operation regimes. Minimum mean square error receivers with and without successive interference cancellation (SIC) are considered in Rayleigh fading channels. The outage probability is derived and the achievable transmission rates are obtained based on that. The analysis with 5G new radio assumptions shows that overlaying is mostly beneficial when SIC is employed in medium to high SNR scenarios or, in some cases, with low URLLC load. Otherwise, the use of separate bands supports higher loads for both services simultaneously. Practical insights based on the approach are discussed.","PeriodicalId":134773,"journal":{"name":"2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115252594","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: 17

Multi-Connectivity for Ultra-Reliable Communication in Industrial Scenarios 工业场景中超可靠通信的多连接

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-06-27 DOI: 10.1109/VTCSpring.2019.8746357

E. J. Khatib, Dereje Assefa Wassie, Gilberto Berardinelli, Ignacio Rodriguez, P. Mogensen

引用次数: 6

Making Trustable Satellite Experiments: An Application to a VoIP Scenario 建立可信赖的卫星实验:在VoIP场景中的应用

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-04-28 DOI: 10.1109/VTCSPRING.2019.8746404

A. Auger, E. Lochin, N. Kuhn

引用次数: 11

Technology Assessment for Radio Communication between UAV and Ground: Qualitative Study and Applications 无人机与地面无线电通信技术评估:定性研究与应用

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-04-28 DOI: 10.1109/VTCSpring.2019.8746306

Najett Neji, Tumader Mostfa, Y. Sebbane

{"title":"Technology Assessment for Radio Communication between UAV and Ground: Qualitative Study and Applications","authors":"Najett Neji, Tumader Mostfa, Y. Sebbane","doi":"10.1109/VTCSpring.2019.8746306","DOIUrl":"https://doi.org/10.1109/VTCSpring.2019.8746306","url":null,"abstract":"In this paper, we develop an analytic methodology to determine the best technology to carry the communication between an Unmanned Aerial Vehicle (UAV) and a ground control station (GCS). We assume herein that the UAV is performing its mission under nominal conditions. For this, we identify some relevant criteria that cover most use-cases. We propose a multi-criteria analysis to determine the best technology to carry the radio- communication between the UAV and the GCS. In this work, we distinguish between the Control and Non- Payload Communication Channel (CNPC) and the Payload Channel. By studying two different missions, we emphasize that the technology assessment results depend on the use-case as well as the UAV scenario, and that for a same scenario the results for CNPC are different from the Payload communication. In this work, we are focused on the precise agriculture (PA) use-case, and the public safety (PS) use case. We present the assessment results in both Visual Line of Sight (VLOS), and Beyond Line of Sight (BVLOS) scenarios. The latter is very interesting because the communication UAV - GCS becomes of critical importance.","PeriodicalId":134773,"journal":{"name":"2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123768943","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

Adaptive Negotiation for Block Acknowledgment Session Management 块确认会话管理的自适应协商

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-04-28 DOI: 10.1109/VTCSpring.2019.8746503

Kaoutar Abdelalim, Getachew Redieteab, S. Roblot, K. Amis

引用次数: 1

On the Joint Impact of SU Mobility and PU Activity in Cognitive Vehicular Networks with Improved Energy Detection 基于改进能量检测的认知车辆网络中SU移动性和PU活动的联合影响

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-04-01 DOI: 10.1109/VTCSpring.2019.8746441

Om Thakkar, Dhaval K. Patel, Y. Guan, Sumei Sun, Yoong Choon Chang, J. Lim

{"title":"On the Joint Impact of SU Mobility and PU Activity in Cognitive Vehicular Networks with Improved Energy Detection","authors":"Om Thakkar, Dhaval K. Patel, Y. Guan, Sumei Sun, Yoong Choon Chang, J. Lim","doi":"10.1109/VTCSpring.2019.8746441","DOIUrl":"https://doi.org/10.1109/VTCSpring.2019.8746441","url":null,"abstract":"Dynamic Spectrum Access (DSA)/Cognitive Radio (CR) systems access the channel in an opportunistic, noninterfering manner with the primary network, thus being a promising approach to solve the problem of spectrum scarcity. Energy Detection, a spectrum sensing technique for DSA/CR systems, is widely used for blind sensing of unused frequency bands due to its non-parametric sensing ability and computationally low complexity. However, spectrum sensing becomes more challenging in Cognitive Vehicular Networks (CVNs) due to Secondary Userâ€™s (SUâ€™s) mobility and often yields a detection performance loss as compared to static scenarios. In order to mitigate the impact of reduced detection performance due to mobility, the usage of an improved version of energy detection technique is proposed in this paper. Usage of Improved Energy Detection (IED) technique in CVNs results more than 10% increment in DSA/CR system performance. In this paper, we study the joint impact of SUâ€™s sensing range, PUâ€™s protection range and SUâ€™s mobility model on the PU Activity using IED technique in CVNs, with detection probability and probability of false alarm as the performance metrics. Also, we derive a closed form expression for the probability of PU being inside SUâ€™s sensing range. Based on the proposed framework, numerical results show great agreement with analysis, yielding a superior performance.","PeriodicalId":134773,"journal":{"name":"2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124459151","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

An RF/FSO Hybrid Routing for Satellite Constellation Systems 卫星星座系统的射频/自由通信混合路由

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) Pub Date : 2019-04-01 DOI: 10.1109/VTCSpring.2019.8746593

Yuki Kanaya, M. Bandai

{"title":"An RF/FSO Hybrid Routing for Satellite Constellation Systems","authors":"Yuki Kanaya, M. Bandai","doi":"10.1109/VTCSpring.2019.8746593","DOIUrl":"https://doi.org/10.1109/VTCSpring.2019.8746593","url":null,"abstract":"Earth observation satellites obtain various data from the Earth and its surrounding environment. The amount of data handled by Earth observation satellites has increased in step with the improved performance of observation equipment. By using free-space optics (FSO) for satellite communication, much faster data transmission becomes possible. However, FSO is influenced by atmospheric conditions, which can disrupt the optical link between a satellite and ground station (GS). In contrast, a radio-frequency (RF) link is hardly ever influenced by atmospheric conditions, and communication can continue even when clouds pass between the satellite and GS. In this paper, we propose RF/FSO hybrid routing for satellite constellations. In the proposed method, when the FSO link between a satellite and GS is disrupted due to atmospheric phenomena, a detour path through other satellites with a functioning FSO link to the GS is established to increase the total amount of data transmitted to the GS. Using numerical calculations, we show that the proposed method is effective for increasing the total amount of data transmitted from a satellite to its GS compared to the conventional method.","PeriodicalId":134773,"journal":{"name":"2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125212954","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: 1