The Experts below are selected from a list of 130128 Experts worldwide ranked by ideXlab platform
Brian D O Anderson - One of the best experts on this subject based on the ideXlab platform.
-
Stochastic Characterization of Information Propagation Process in Vehicular Ad hoc Networks
IEEE Transactions on Intelligent Transportation Systems, 2014Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in wireless communication networks formed by vehicles traveling on a highway. Corresponding to different lanes of the highway and different types of vehicles, we consider that vehicles in the network can be categorized into a number of traffic streams, where the vehicles in the same traffic stream have the same speed distribution while the speed distributions of vehicles in different traffic streams are different. We analyze the information Propagation Process of the aforementioned vehicular network and obtain an analytical formula for the information Propagation speed (IPS). Using the formula, one can straightforwardly study the impact of parameters such as radio range, vehicular traffic density, vehicular speed distribution, and the time variation of vehicular speed on the IPS. The accuracy of the analytical results is validated using simulations.
-
on the information Propagation Process in multi lane vehicular ad hoc networks
International Conference on Communications, 2012Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in a 1D mobile ad-hoc network formed by vehicles traveling on a highway. We consider that vehicles can be divided into traffic streams; vehicles in the same traffic stream have the same speed distribution, while the speed distributions of vehicles in different traffic streams are different. Analytical formulas are derived for the fundamental properties of the information Propagation Process as well as the information Propagation speed. Using the formulas, one can straightforwardly study the impact on the information Propagation speed of various parameters such as radio range, vehicular traffic density, vehicular speed distribution and the time variation of vehicular speed.
-
ICC - On the information Propagation Process in multi-lane vehicular ad-hoc networks
2012 IEEE International Conference on Communications (ICC), 2012Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in a 1D mobile ad-hoc network formed by vehicles traveling on a highway. We consider that vehicles can be divided into traffic streams; vehicles in the same traffic stream have the same speed distribution, while the speed distributions of vehicles in different traffic streams are different. Analytical formulas are derived for the fundamental properties of the information Propagation Process as well as the information Propagation speed. Using the formulas, one can straightforwardly study the impact on the information Propagation speed of various parameters such as radio range, vehicular traffic density, vehicular speed distribution and the time variation of vehicular speed.
-
On the Information Propagation Process in Mobile Vehicular Ad Hoc Networks
IEEE Transactions on Vehicular Technology, 2011Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:In this paper, we study the information Propagation Process in a 1-D mobile ad hoc network formed by vehicles Poissonly distributed on a highway and traveling in the same direction at randomly distributed speeds that are independent between vehicles. Considering a model in which time is divided into time slots of equal length and each vehicle changes its speed at the beginning of each time slot, independent of its speed in other time slots, we derive analytical formulas for the fundamental properties of the information Propagation Process and the information Propagation speed (IPS). Using the formulas, one can straightforwardly study the impact on the IPS of various parameters such as radio range, vehicular traffic density, and time variation of vehicle speed. The accuracy of the results is validated using simulations. The research provides useful guidelines on the design of vehicular ad hoc networks (VANETs).
Changsheng Zhou - One of the best experts on this subject based on the ideXlab platform.
-
Propagation Process of h2 air rotating detonation wave and influence factors in plane radial structure
International Journal of Hydrogen Energy, 2018Co-Authors: Changfei Zhuo, Changsheng ZhouAbstract:Abstract The rotating detonation wave (RDW) Propagation Processes and influence factors are simulated in the plane-radial structure. The effects of inner radii of curvature, domain widths and stagnation pressures on Propagation mode are studied. The RDW is initiated, and two kinds of Propagation mode are obtained and analyzed. The flow field structure, parameters variation and influence factors on unstable Propagation mode are explored in depth, and the geometrical and injection conditions of the unstable Propagation are obtained. Results indicate that the decoupling and re-initiation occur repeatedly during the unstable Propagation mode of the RDW, and the angular velocities of leading shock wave vary accordingly. When the domain width remains constant, the range of stagnation-pressure under unstable Propagation mode increases as the inner radius increases. But the RDW propagates steadily when the inner radius increases to a certain value (Larger than 40 mm in this study). The effect of curvature radius and initial pressure ahead of detonation wave on the unstable Propagation mode in this calculation model is similar to that in a curved channel. When ri +0.464pa > 80.932 or ri ≥ 40 mm, the detonation wave can propagate steadily in the annular domain. When the curvature radius remains constant, the stagnation-pressure range of the unstable Propagation mode decreases as the domain width increases.
-
Propagation Process of H2/air rotating detonation wave and influence factors in plane-radial structure
International Journal of Hydrogen Energy, 2018Co-Authors: Zhenjuan Xia, Changfei Zhuo, Changsheng ZhouAbstract:Abstract The rotating detonation wave (RDW) Propagation Processes and influence factors are simulated in the plane-radial structure. The effects of inner radii of curvature, domain widths and stagnation pressures on Propagation mode are studied. The RDW is initiated, and two kinds of Propagation mode are obtained and analyzed. The flow field structure, parameters variation and influence factors on unstable Propagation mode are explored in depth, and the geometrical and injection conditions of the unstable Propagation are obtained. Results indicate that the decoupling and re-initiation occur repeatedly during the unstable Propagation mode of the RDW, and the angular velocities of leading shock wave vary accordingly. When the domain width remains constant, the range of stagnation-pressure under unstable Propagation mode increases as the inner radius increases. But the RDW propagates steadily when the inner radius increases to a certain value (Larger than 40 mm in this study). The effect of curvature radius and initial pressure ahead of detonation wave on the unstable Propagation mode in this calculation model is similar to that in a curved channel. When ri +0.464pa > 80.932 or ri ≥ 40 mm, the detonation wave can propagate steadily in the annular domain. When the curvature radius remains constant, the stagnation-pressure range of the unstable Propagation mode decreases as the domain width increases.
-
Investigation on the Propagation Process of rotating detonation wave
Acta Astronautica, 2017Co-Authors: Li Deng, Hu Ma, Can Xu, Changsheng ZhouAbstract:Abstract Effects of mass flow rate and equivalence ratio on the wave speed performance and instantaneous pressure characteristics of rotating detonation wave are investigated using hydrogen and air mixtures. The interaction between air and fuel manifolds and combustion chamber is also identified. The results show that the rotating detonation waves are able to adapt themselves to the changes of equivalence ratio during the run, the rotating detonation waves decayed gradually and then quenched after the shutdown of reactants supply. The wave speed performance is closely related to the mass flow rate and the pressure ratio of the fuel to air manifolds at different equivalence ratios. The blockage ratio of the air manifold increases with the increasing of the wave speed due to high-pressure detonation products, while increasing of the equivalence ratios will reduce the blockage ratio of the hydrogen manifold. Higher equivalence ratio can enhance the stabilization of the rotating detonation wave and lower equivalence ratio will lead to the large fluctuations of the lap time and instantaneous pressure magnitude. The overpressure of rotating detonation wave is determined by the combination of mass flow rate and equivalence ratio, which increases with the increasing of mass flow rate in the equivalence ratio ranges that the rotating detonation wave propagates stably. The secondary spike in the instantaneous pressure and ionization signals indicates that a shocked mixing zone exists near the fuel injection holes and the reflection of shock in the mixing zone induces the reaction.
Zijie Zhang - One of the best experts on this subject based on the ideXlab platform.
-
Stochastic Characterization of Information Propagation Process in Vehicular Ad hoc Networks
IEEE Transactions on Intelligent Transportation Systems, 2014Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in wireless communication networks formed by vehicles traveling on a highway. Corresponding to different lanes of the highway and different types of vehicles, we consider that vehicles in the network can be categorized into a number of traffic streams, where the vehicles in the same traffic stream have the same speed distribution while the speed distributions of vehicles in different traffic streams are different. We analyze the information Propagation Process of the aforementioned vehicular network and obtain an analytical formula for the information Propagation speed (IPS). Using the formula, one can straightforwardly study the impact of parameters such as radio range, vehicular traffic density, vehicular speed distribution, and the time variation of vehicular speed on the IPS. The accuracy of the analytical results is validated using simulations.
-
on the information Propagation Process in multi lane vehicular ad hoc networks
International Conference on Communications, 2012Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in a 1D mobile ad-hoc network formed by vehicles traveling on a highway. We consider that vehicles can be divided into traffic streams; vehicles in the same traffic stream have the same speed distribution, while the speed distributions of vehicles in different traffic streams are different. Analytical formulas are derived for the fundamental properties of the information Propagation Process as well as the information Propagation speed. Using the formulas, one can straightforwardly study the impact on the information Propagation speed of various parameters such as radio range, vehicular traffic density, vehicular speed distribution and the time variation of vehicular speed.
-
ICC - On the information Propagation Process in multi-lane vehicular ad-hoc networks
2012 IEEE International Conference on Communications (ICC), 2012Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in a 1D mobile ad-hoc network formed by vehicles traveling on a highway. We consider that vehicles can be divided into traffic streams; vehicles in the same traffic stream have the same speed distribution, while the speed distributions of vehicles in different traffic streams are different. Analytical formulas are derived for the fundamental properties of the information Propagation Process as well as the information Propagation speed. Using the formulas, one can straightforwardly study the impact on the information Propagation speed of various parameters such as radio range, vehicular traffic density, vehicular speed distribution and the time variation of vehicular speed.
-
On the Information Propagation Process in Mobile Vehicular Ad Hoc Networks
IEEE Transactions on Vehicular Technology, 2011Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:In this paper, we study the information Propagation Process in a 1-D mobile ad hoc network formed by vehicles Poissonly distributed on a highway and traveling in the same direction at randomly distributed speeds that are independent between vehicles. Considering a model in which time is divided into time slots of equal length and each vehicle changes its speed at the beginning of each time slot, independent of its speed in other time slots, we derive analytical formulas for the fundamental properties of the information Propagation Process and the information Propagation speed (IPS). Using the formulas, one can straightforwardly study the impact on the IPS of various parameters such as radio range, vehicular traffic density, and time variation of vehicle speed. The accuracy of the results is validated using simulations. The research provides useful guidelines on the design of vehicular ad hoc networks (VANETs).
Guoqiang Mao - One of the best experts on this subject based on the ideXlab platform.
-
Stochastic Characterization of Information Propagation Process in Vehicular Ad hoc Networks
IEEE Transactions on Intelligent Transportation Systems, 2014Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in wireless communication networks formed by vehicles traveling on a highway. Corresponding to different lanes of the highway and different types of vehicles, we consider that vehicles in the network can be categorized into a number of traffic streams, where the vehicles in the same traffic stream have the same speed distribution while the speed distributions of vehicles in different traffic streams are different. We analyze the information Propagation Process of the aforementioned vehicular network and obtain an analytical formula for the information Propagation speed (IPS). Using the formula, one can straightforwardly study the impact of parameters such as radio range, vehicular traffic density, vehicular speed distribution, and the time variation of vehicular speed on the IPS. The accuracy of the analytical results is validated using simulations.
-
on the information Propagation Process in multi lane vehicular ad hoc networks
International Conference on Communications, 2012Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in a 1D mobile ad-hoc network formed by vehicles traveling on a highway. We consider that vehicles can be divided into traffic streams; vehicles in the same traffic stream have the same speed distribution, while the speed distributions of vehicles in different traffic streams are different. Analytical formulas are derived for the fundamental properties of the information Propagation Process as well as the information Propagation speed. Using the formulas, one can straightforwardly study the impact on the information Propagation speed of various parameters such as radio range, vehicular traffic density, vehicular speed distribution and the time variation of vehicular speed.
-
ICC - On the information Propagation Process in multi-lane vehicular ad-hoc networks
2012 IEEE International Conference on Communications (ICC), 2012Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:This paper studies the information Propagation Process in a 1D mobile ad-hoc network formed by vehicles traveling on a highway. We consider that vehicles can be divided into traffic streams; vehicles in the same traffic stream have the same speed distribution, while the speed distributions of vehicles in different traffic streams are different. Analytical formulas are derived for the fundamental properties of the information Propagation Process as well as the information Propagation speed. Using the formulas, one can straightforwardly study the impact on the information Propagation speed of various parameters such as radio range, vehicular traffic density, vehicular speed distribution and the time variation of vehicular speed.
-
On the Information Propagation Process in Mobile Vehicular Ad Hoc Networks
IEEE Transactions on Vehicular Technology, 2011Co-Authors: Zijie Zhang, Guoqiang Mao, Brian D O AndersonAbstract:In this paper, we study the information Propagation Process in a 1-D mobile ad hoc network formed by vehicles Poissonly distributed on a highway and traveling in the same direction at randomly distributed speeds that are independent between vehicles. Considering a model in which time is divided into time slots of equal length and each vehicle changes its speed at the beginning of each time slot, independent of its speed in other time slots, we derive analytical formulas for the fundamental properties of the information Propagation Process and the information Propagation speed (IPS). Using the formulas, one can straightforwardly study the impact on the IPS of various parameters such as radio range, vehicular traffic density, and time variation of vehicle speed. The accuracy of the results is validated using simulations. The research provides useful guidelines on the design of vehicular ad hoc networks (VANETs).
Changfei Zhuo - One of the best experts on this subject based on the ideXlab platform.
-
Propagation Process of h2 air rotating detonation wave and influence factors in plane radial structure
International Journal of Hydrogen Energy, 2018Co-Authors: Changfei Zhuo, Changsheng ZhouAbstract:Abstract The rotating detonation wave (RDW) Propagation Processes and influence factors are simulated in the plane-radial structure. The effects of inner radii of curvature, domain widths and stagnation pressures on Propagation mode are studied. The RDW is initiated, and two kinds of Propagation mode are obtained and analyzed. The flow field structure, parameters variation and influence factors on unstable Propagation mode are explored in depth, and the geometrical and injection conditions of the unstable Propagation are obtained. Results indicate that the decoupling and re-initiation occur repeatedly during the unstable Propagation mode of the RDW, and the angular velocities of leading shock wave vary accordingly. When the domain width remains constant, the range of stagnation-pressure under unstable Propagation mode increases as the inner radius increases. But the RDW propagates steadily when the inner radius increases to a certain value (Larger than 40 mm in this study). The effect of curvature radius and initial pressure ahead of detonation wave on the unstable Propagation mode in this calculation model is similar to that in a curved channel. When ri +0.464pa > 80.932 or ri ≥ 40 mm, the detonation wave can propagate steadily in the annular domain. When the curvature radius remains constant, the stagnation-pressure range of the unstable Propagation mode decreases as the domain width increases.
-
Propagation Process of H2/air rotating detonation wave and influence factors in plane-radial structure
International Journal of Hydrogen Energy, 2018Co-Authors: Zhenjuan Xia, Changfei Zhuo, Changsheng ZhouAbstract:Abstract The rotating detonation wave (RDW) Propagation Processes and influence factors are simulated in the plane-radial structure. The effects of inner radii of curvature, domain widths and stagnation pressures on Propagation mode are studied. The RDW is initiated, and two kinds of Propagation mode are obtained and analyzed. The flow field structure, parameters variation and influence factors on unstable Propagation mode are explored in depth, and the geometrical and injection conditions of the unstable Propagation are obtained. Results indicate that the decoupling and re-initiation occur repeatedly during the unstable Propagation mode of the RDW, and the angular velocities of leading shock wave vary accordingly. When the domain width remains constant, the range of stagnation-pressure under unstable Propagation mode increases as the inner radius increases. But the RDW propagates steadily when the inner radius increases to a certain value (Larger than 40 mm in this study). The effect of curvature radius and initial pressure ahead of detonation wave on the unstable Propagation mode in this calculation model is similar to that in a curved channel. When ri +0.464pa > 80.932 or ri ≥ 40 mm, the detonation wave can propagate steadily in the annular domain. When the curvature radius remains constant, the stagnation-pressure range of the unstable Propagation mode decreases as the domain width increases.
