Pub Date : 2014-11-13DOI: 10.1109/WIVEC.2014.6953220
Zhengguo Sheng, Morgan Roff, R. P. Antonioli, Victor C. M. Leung
In-vehicle communication is becoming more important as the need to ensure reliable and efficient communications with the increasing number of x-by-wire applications. In order to well maintain in-vehicle communications, it is necessary to evolve protocols for managing communications and, in particular, for granting bus access for real-time applications. In this paper, we describe a demonstration of the multi-channel random access protocol that we have developed for VPLC using OMNeT++. The proposed solution uses a combination of time and frequency multiplexing and consists of two key features: (i) multiple access channels to prioritize transmissions and (ii) a distributed collision resolution algorithm that allows each node to compete for the use of its selected channel. The live demonstration illustrates the contention resolution procedure of in-vehicle communications with different service classes, shows simulation results to validate the advantages of the proposed protocol and provides useful guidelines for developing a robust contention-based protocol for vehicular power line communication systems.
{"title":"Demonstration of multi-channel medium access control protocol in vehicular power line communication (VPLC) using OMNeT++","authors":"Zhengguo Sheng, Morgan Roff, R. P. Antonioli, Victor C. M. Leung","doi":"10.1109/WIVEC.2014.6953220","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953220","url":null,"abstract":"In-vehicle communication is becoming more important as the need to ensure reliable and efficient communications with the increasing number of x-by-wire applications. In order to well maintain in-vehicle communications, it is necessary to evolve protocols for managing communications and, in particular, for granting bus access for real-time applications. In this paper, we describe a demonstration of the multi-channel random access protocol that we have developed for VPLC using OMNeT++. The proposed solution uses a combination of time and frequency multiplexing and consists of two key features: (i) multiple access channels to prioritize transmissions and (ii) a distributed collision resolution algorithm that allows each node to compete for the use of its selected channel. The live demonstration illustrates the contention resolution procedure of in-vehicle communications with different service classes, shows simulation results to validate the advantages of the proposed protocol and provides useful guidelines for developing a robust contention-based protocol for vehicular power line communication systems.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123970838","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953256
Zhinan Xu, L. Bernadó, Mingming Gan, M. Hofer, T. Abbas, V. Shivaldova, Kim Mahler, D. Smely, T. Zemen
Traffic s afety at road intersections can be improved by establishing reliable communications between vehicles. For vehicle-to-vehicle communications, this requires information exchange in non line-of-sight (NLOS) conditions due to the obstruction by buildings. In order to overcome the low receive signal-to-noise ratio (SNR) due to NLOS, we consider to place a relay at road intersections to enhance the reliability of communication links. In this paper, we implement a vehicular non-stationary geometry based stochastic channel model for road intersections, which is an extension of an existing highway channel model. The model is verified by comparison with vehicular channel measurements. Using the proposed channel model, we present link level simulation results for IEEE 802.11p relaying at varying transmitter/receiver locations using different channel estimation techniques. The results show that a relay at the intersection is able to greatly extend the reliable communications region. Besides, in the high SNR regime with moderate or high mobility transmitter and receiver, the block type least square channel estimator is the bottleneck that limits the relaying performance. An advanced iterative channel estimator is also simulated, which exhibits robustness against increased vehicle velocities.
{"title":"Relaying for IEEE 802.11p at road intersection using a vehicular non-stationary channel model","authors":"Zhinan Xu, L. Bernadó, Mingming Gan, M. Hofer, T. Abbas, V. Shivaldova, Kim Mahler, D. Smely, T. Zemen","doi":"10.1109/WIVEC.2014.6953256","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953256","url":null,"abstract":"Traffic s afety at road intersections can be improved by establishing reliable communications between vehicles. For vehicle-to-vehicle communications, this requires information exchange in non line-of-sight (NLOS) conditions due to the obstruction by buildings. In order to overcome the low receive signal-to-noise ratio (SNR) due to NLOS, we consider to place a relay at road intersections to enhance the reliability of communication links. In this paper, we implement a vehicular non-stationary geometry based stochastic channel model for road intersections, which is an extension of an existing highway channel model. The model is verified by comparison with vehicular channel measurements. Using the proposed channel model, we present link level simulation results for IEEE 802.11p relaying at varying transmitter/receiver locations using different channel estimation techniques. The results show that a relay at the intersection is able to greatly extend the reliable communications region. Besides, in the high SNR regime with moderate or high mobility transmitter and receiver, the block type least square channel estimator is the bottleneck that limits the relaying performance. An advanced iterative channel estimator is also simulated, which exhibits robustness against increased vehicle velocities.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129323907","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953228
Shun-Ping Chen
Antenna arrays show increased side lobes at increasing beam steering angles in the near field. Conventional techniques such as inhomogenous but symmetric amplitude illuminations, to assure a certain side lobe suppression level, do not reduce the side lobes sufficiently for the near field case. In this paper, a new additional asymmetric amplitude weighting function in combination with Dolph Chebyshev is proposed which can further improve the side lobe suppression almost over the whole side lobe range, to approximately -35 dB at φ = 0° and φ = 180° for the steering angle of 15° and 30°.
{"title":"Improved near field focusing of antenna arrays with novel weighting coefficients","authors":"Shun-Ping Chen","doi":"10.1109/WIVEC.2014.6953228","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953228","url":null,"abstract":"Antenna arrays show increased side lobes at increasing beam steering angles in the near field. Conventional techniques such as inhomogenous but symmetric amplitude illuminations, to assure a certain side lobe suppression level, do not reduce the side lobes sufficiently for the near field case. In this paper, a new additional asymmetric amplitude weighting function in combination with Dolph Chebyshev is proposed which can further improve the side lobe suppression almost over the whole side lobe range, to approximately -35 dB at φ = 0° and φ = 180° for the steering angle of 15° and 30°.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"179 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120972286","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953221
Mohammad Y. Abualhoul, M. Marouf, O. Shagdar, F. Nashashibi
Visible Light Communication (VLC) technology have recently been suggested as efficient supportive technology for platooning applications over short inter-vehicle distances. Though, ensuring the continuity of Line-of-Sight (LOS) of any optical-based applications is one of the most complex scenarios for an autonomous vehicle control, and still remains as an open challenge for Intelligent Transformation Systems (ITS). Exchanging information about the relative directional position of each member of the platoon, together with front and rear facing directions of each vehicle, can be very useful data for building a smooth geometrical-based compensation method, which results in ensuring that any increase in both incidence and irradiance optical angles will never exceed the Field of View (FOV) limitations and regardless of the trajectory shape. This paper propose a tracking alike compensation method of four vehicles equipped with positioning and VLC systems. We have simulated different scenarios related to different trajectories and compensation angles limits. The simulation results show that trajectories influence on the optical incidence and irradiance angles can be compensated efficiently and without deploying any tracking method.
{"title":"Enhancing the field of view limitation of Visible Light Communication-based platoon","authors":"Mohammad Y. Abualhoul, M. Marouf, O. Shagdar, F. Nashashibi","doi":"10.1109/WIVEC.2014.6953221","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953221","url":null,"abstract":"Visible Light Communication (VLC) technology have recently been suggested as efficient supportive technology for platooning applications over short inter-vehicle distances. Though, ensuring the continuity of Line-of-Sight (LOS) of any optical-based applications is one of the most complex scenarios for an autonomous vehicle control, and still remains as an open challenge for Intelligent Transformation Systems (ITS). Exchanging information about the relative directional position of each member of the platoon, together with front and rear facing directions of each vehicle, can be very useful data for building a smooth geometrical-based compensation method, which results in ensuring that any increase in both incidence and irradiance optical angles will never exceed the Field of View (FOV) limitations and regardless of the trajectory shape. This paper propose a tracking alike compensation method of four vehicles equipped with positioning and VLC systems. We have simulated different scenarios related to different trajectories and compensation angles limits. The simulation results show that trajectories influence on the optical incidence and irradiance angles can be compensated efficiently and without deploying any tracking method.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121243359","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953253
Caihong Yu, L. Hao
In a general cellular network, different users have different abilities to estimate the channel when it changes due to vehicle movements. On the two-user multiple-input-multiple-output (MIMO) broadcast channel, when one user with low mobility (called the static user) knows the exact channel state information (CSI) whereas the other user with high mobility (called the dynamic user) does not know CSI, a novel multiplicative superposition signaling scheme could obtain additive degree of freedom. Based on this novel signaling scheme, some detection schemes of the static user and the dynamic user are investigated in this paper. The signal desired by the dynamic user applies unitary space-time code and the signal desired by the static user is designed as the symbol matrix with the full spatial multiplexing, each element of which is a multiple phase-shift keying (PSK) or quadrature amplitude modulation (QAM) symbol. The final transmitted signal is the product of these two signals. At the dynamic user, a non-coherent maximum likelihood detection (NCMLD) is used. At the static user, we propose two hard detection schemes based on NCMLD-ML and NCMLD-Minimum-Mean-Square-Error (MMSE), respectively. To avoid the error-propagation problem in the hard detection schemes, we also propose a low-complexity soft detection scheme based on the conditional expectation and MMSE (CE-MMSE). Simulation results show that the NCMLD-ML scheme outperforms the NCMLD-MMSE scheme and CE-MMSE scheme. Furthermore, CE-MMSE scheme has a better error performance than NCMLD-MMSE in the low signal-to-noise ratio (SNR) region at the expense of higher complexity which is inconsiderable when it is compared with NCMLD-ML scheme.
{"title":"Multiplicative superposition signaling based detection schemes for heterogeneous-speed users","authors":"Caihong Yu, L. Hao","doi":"10.1109/WIVEC.2014.6953253","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953253","url":null,"abstract":"In a general cellular network, different users have different abilities to estimate the channel when it changes due to vehicle movements. On the two-user multiple-input-multiple-output (MIMO) broadcast channel, when one user with low mobility (called the static user) knows the exact channel state information (CSI) whereas the other user with high mobility (called the dynamic user) does not know CSI, a novel multiplicative superposition signaling scheme could obtain additive degree of freedom. Based on this novel signaling scheme, some detection schemes of the static user and the dynamic user are investigated in this paper. The signal desired by the dynamic user applies unitary space-time code and the signal desired by the static user is designed as the symbol matrix with the full spatial multiplexing, each element of which is a multiple phase-shift keying (PSK) or quadrature amplitude modulation (QAM) symbol. The final transmitted signal is the product of these two signals. At the dynamic user, a non-coherent maximum likelihood detection (NCMLD) is used. At the static user, we propose two hard detection schemes based on NCMLD-ML and NCMLD-Minimum-Mean-Square-Error (MMSE), respectively. To avoid the error-propagation problem in the hard detection schemes, we also propose a low-complexity soft detection scheme based on the conditional expectation and MMSE (CE-MMSE). Simulation results show that the NCMLD-ML scheme outperforms the NCMLD-MMSE scheme and CE-MMSE scheme. Furthermore, CE-MMSE scheme has a better error performance than NCMLD-MMSE in the low signal-to-noise ratio (SNR) region at the expense of higher complexity which is inconsiderable when it is compared with NCMLD-ML scheme.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133749158","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953258
J. Petit, M. Feiri, F. Kargl
Because of the potential impact on user's life in cooperative automated safety applications, the security of Vehicle-to-X communication (V2X) is mandatory. However, the current attacker model used in literature is often too network-oriented, and it is unclear what realistic attacks could be. In this paper, we use the V2X data lifecycle to derive the attack surfaces. From this, we lay the foundations of a revisited attacker model, which details realistic attacks and identify appropriate countermeasures. We demonstrate that while the security of data processing, data at rest, and data in-transit is well-advanced, the security of meta-data and data acquisition requires extra attention by the research community.
{"title":"Revisiting attacker model for smart vehicles","authors":"J. Petit, M. Feiri, F. Kargl","doi":"10.1109/WIVEC.2014.6953258","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953258","url":null,"abstract":"Because of the potential impact on user's life in cooperative automated safety applications, the security of Vehicle-to-X communication (V2X) is mandatory. However, the current attacker model used in literature is often too network-oriented, and it is unclear what realistic attacks could be. In this paper, we use the V2X data lifecycle to derive the attack surfaces. From this, we lay the foundations of a revisited attacker model, which details realistic attacks and identify appropriate countermeasures. We demonstrate that while the security of data processing, data at rest, and data in-transit is well-advanced, the security of meta-data and data acquisition requires extra attention by the research community.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116911102","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953265
M. Aguado, Christian Pinedo, Igor Lopez, I. Ugalde, C. D. L. Munecas, L. Rodriguez, E. Jacob
For the last five years, our research group I2T has worked with OPNET Modeler, a general purpose simulation tool, to build an integrated simulation framework for advanced railroad traffic management and control systems that includes functional and communication layers. We load in our tool the railroad network and its geographic coordinates through a terrain module. We introduce the real train graph schedule. Our simulation framework meets the subset 026 v3.3.0 UNISIG: System Requirement Specification, current ERTMS (European Rail Traffic Management System) specification for high speed lines. We deploy this train control service over different technologies (the standard technology a full stack with X.224, T.70, LAPB and GSM-R) and over TCP/IP next generation telecommunication technologies (LTE, WiMAX, WLAN). By modeling the train control service, we are able to measure how failures or degradation in the communication link affects railroad network availability and operational performance indicators. In our demonstrator, we stress the railroad communication network in different ways and check the behavior of different standardized telecom approaches. The main goal is to reduce the need for extensive field test by using this demonstrator in a laboratory.
{"title":"Towards zero on-site testing: Advanced traffic management & control systems simulation framework including communication KPIs and response to failure events","authors":"M. Aguado, Christian Pinedo, Igor Lopez, I. Ugalde, C. D. L. Munecas, L. Rodriguez, E. Jacob","doi":"10.1109/WIVEC.2014.6953265","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953265","url":null,"abstract":"For the last five years, our research group I2T has worked with OPNET Modeler, a general purpose simulation tool, to build an integrated simulation framework for advanced railroad traffic management and control systems that includes functional and communication layers. We load in our tool the railroad network and its geographic coordinates through a terrain module. We introduce the real train graph schedule. Our simulation framework meets the subset 026 v3.3.0 UNISIG: System Requirement Specification, current ERTMS (European Rail Traffic Management System) specification for high speed lines. We deploy this train control service over different technologies (the standard technology a full stack with X.224, T.70, LAPB and GSM-R) and over TCP/IP next generation telecommunication technologies (LTE, WiMAX, WLAN). By modeling the train control service, we are able to measure how failures or degradation in the communication link affects railroad network availability and operational performance indicators. In our demonstrator, we stress the railroad communication network in different ways and check the behavior of different standardized telecom approaches. The main goal is to reduce the need for extensive field test by using this demonstrator in a laboratory.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114314692","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953255
Bernhard Kloiber, Jérôme Härri, F. Müller, S. Sand
In Vehicular Safety Communication (VSC) vehicles periodically broadcast so called Cooperative Awareness Messages (CAM) to make neighboring vehicles being aware of their current status like position, speed and heading. Such periodic transmissions on top of the Dedicated Short Range Communication (DSRC) technology can cause temporal correlated (recurring) collisions, which increase the delay between consecutive awareness updates from a certain vehicle. In this paper we propose to add a controlled random jitter to the nominal CAM broadcast interval at the application/facilities layer. Thus, we aim for making temporal correlated packet collisions more uncorrelated in time and by implication significantly decrease the delay between consecutive CAM updates (update delay or inter-reception time). The benefit of our approach has been demonstrated by simulating a multi-lane highway scenario at different traffic/data load conditions. By adding a random transmit jitter we were able to reduce the amount of correlated collisions by more than factor 10, and by consequence to improve the update delay performance by up to two orders of magnitude.
{"title":"Random transmit jitter against correlated packet collisions in vehicular safety communications","authors":"Bernhard Kloiber, Jérôme Härri, F. Müller, S. Sand","doi":"10.1109/WIVEC.2014.6953255","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953255","url":null,"abstract":"In Vehicular Safety Communication (VSC) vehicles periodically broadcast so called Cooperative Awareness Messages (CAM) to make neighboring vehicles being aware of their current status like position, speed and heading. Such periodic transmissions on top of the Dedicated Short Range Communication (DSRC) technology can cause temporal correlated (recurring) collisions, which increase the delay between consecutive awareness updates from a certain vehicle. In this paper we propose to add a controlled random jitter to the nominal CAM broadcast interval at the application/facilities layer. Thus, we aim for making temporal correlated packet collisions more uncorrelated in time and by implication significantly decrease the delay between consecutive CAM updates (update delay or inter-reception time). The benefit of our approach has been demonstrated by simulating a multi-lane highway scenario at different traffic/data load conditions. By adding a random transmit jitter we were able to reduce the amount of correlated collisions by more than factor 10, and by consequence to improve the update delay performance by up to two orders of magnitude.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130091091","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953218
Seung-Tak Choi, Woo-Sol Hur, S. Seo
In this paper, we propose a new vehicle localization method based on topology matching in mutli-vehicle enviroment. Each vehicle is assumed to generate a local map which is a set of position measurements of nearby vehicles by using onboard low-cost GPS and ranging sensors, and share it with others by broadcasting via vehicle-to-vehicle(V2V) communication. When a vehicle receives multiple local maps from neighbors, it incorporates and fuses them with its own local map by using a local map matching algorithm. The proposed algorithm is based on the topology matching technique and the multi-sensor Kalman filter. Simulation results show that our method can extend the detection range and improve the position accuracy by 65% compared to conventional localization methods utilizing the Kalman filter with only onboard GPS measurements.
{"title":"Cooperative localization based on topology matching","authors":"Seung-Tak Choi, Woo-Sol Hur, S. Seo","doi":"10.1109/WIVEC.2014.6953218","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953218","url":null,"abstract":"In this paper, we propose a new vehicle localization method based on topology matching in mutli-vehicle enviroment. Each vehicle is assumed to generate a local map which is a set of position measurements of nearby vehicles by using onboard low-cost GPS and ranging sensors, and share it with others by broadcasting via vehicle-to-vehicle(V2V) communication. When a vehicle receives multiple local maps from neighbors, it incorporates and fuses them with its own local map by using a local map matching algorithm. The proposed algorithm is based on the topology matching technique and the multi-sensor Kalman filter. Simulation results show that our method can extend the detection range and improve the position accuracy by 65% compared to conventional localization methods utilizing the Kalman filter with only onboard GPS measurements.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115619664","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 : 2014-11-13DOI: 10.1109/WIVEC.2014.6953260
V. Shivaldova, A. Winkelbauer, C. Mecklenbräuker
In this contribution we propose an extension to the range-dependent modified Gilbert model introduced in [1]. With the proposed extension, the model can be used to generate realistic vehicle-to-infrastructure signal-to-noise ratio (SNR) traces along with the corresponding error patterns. We model the SNR as a combination of correlated large scale fading and small scale fading. The model parameters are derived from real-world measurements at 5.9 GHz. The accuracy of our simple and yet effective modeling approach is confirmed by comparing the model generated SNR traces to the measured performance.
{"title":"Signal-to-noise ratio modeling for vehicle-to-infrastructure communications","authors":"V. Shivaldova, A. Winkelbauer, C. Mecklenbräuker","doi":"10.1109/WIVEC.2014.6953260","DOIUrl":"https://doi.org/10.1109/WIVEC.2014.6953260","url":null,"abstract":"In this contribution we propose an extension to the range-dependent modified Gilbert model introduced in [1]. With the proposed extension, the model can be used to generate realistic vehicle-to-infrastructure signal-to-noise ratio (SNR) traces along with the corresponding error patterns. We model the SNR as a combination of correlated large scale fading and small scale fading. The model parameters are derived from real-world measurements at 5.9 GHz. The accuracy of our simple and yet effective modeling approach is confirmed by comparing the model generated SNR traces to the measured performance.","PeriodicalId":410528,"journal":{"name":"2014 IEEE 6th International Symposium on Wireless Vehicular Communications (WiVeC 2014)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115255068","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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