Conference Paper

Reliable v2x communications for safety-critical intelligent transport systems

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Abstract

In the future intelligent transport systems (ITS) the reliability and precision of the cooperative and autonomous vehicles are of the utmost importance. For such systems vehicle-to-vehicle and vehicle-to-infrastructure (V2X) communications is safety-critical component of ITS. Many mobility and convenience applications of ITS require the V2X bidirectional communications mode. This paper focuses on evaluating reliability of bidirectional communication channels with redundant equipment and periodical sessions of communication with test during communication sessions and with additional periodical test in the pauses between communication sessions. The optimal periodicity of channel monitoring is defined.

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... Two vehicles communicate with each other in V2V communication and similarly, two infrastructures exchange massages in I2I communication. V2X communication includes many other kinds of communication such as vehicle-to-grid (V2G), vehicle-to-pedestrian (V2P), and vehicle-tonetwork (V2N) [3,4]. From the above-mentioned infrastructure, V2G is a special type of V2X, in which an electric vehicle (EV) also called the battery vehicle (BV) communicates with the smart grid (SG) for charging its batteries. ...
... Spectral efficiency should be maximized, for example, if an unmanned aerial vehicle (UAV) covers a high number of targets so the scheduling data can be adequately collected. High system throughput is required due to its high reliability: Transmissions occur with a probability of 99.999% as in the V2X scenario [25]. In the V2X scenario, system throughput should be maximized to minimize collision probability. ...
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... Solutions for both problems require information exchange, and to achieve cooperative decision making and motion control of autonomous vehicles, advanced communication technologies [8], [9], including vehicle to vehicle (V2V), vehicle to infrastructure (V2I) communication etc. are required. Therefore, research on the V2V/V2I communication is of great significance in solving the on-ramp merging problem for CAVs. ...
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... In equations (7), (8) and (9), ∆Lat is the longitude interval between two adjacent points; ∆Lon is the latitude interval between two adjacent points; n is the total number of longitude and latitude coordinate points; ∆L is the distance between two adjacent points.The output frequency value determines the vehicle speed by setting in the satellite navigation signal simulator. From the above analysis, we can get the speed and driving track of the main vehicle, and so on. ...
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... Collaborative control of connected autonomous vehicles (CAVs) in a networked environment enables vehicles to cooperate with each other through information interaction, which can improve the road traffic efficiency and reduce the energy consumption while ensuring safety. To achieve the cooperative control of vehicles, advanced localization [2] and communication technologies [3,4] (including V2V (vehicle to vehicle) and V2I (vehicle to infrastructure) communication, etc.), are required to assist the autonomous vehicle making decisions. Control of CAVs can be applied to many issues related to transportation optimization, and one of them is on-ramp merging of vehicles. ...
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... In the ITS, the vehicular Ad-hoc Network (VANET) is envisaged as the most important component to realizing intelligent connected vehicles, which is incorporated in the following architectures: vehicle-to-vehicle (V2V), vehicleto-infrastructure (V2I), vehicle-to-pedestrians (V2P) and vehicle-to-everything (V2X) [2]. The V2V communications are realized among the moving vehicles i.e., vehicles act as sources, destinations, and routers in the communication process. ...
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... Connected vehicles networks define different communication modes to automate message propagation ( Fig. 1): Vehicle-to-Vehicle (V2V) [8][9][10], Vehicle-to-Infrastructure (V2I) [11][12][13], Vehicle-to-Pedestrian (V2P) [14][15][16], and Vehicle-to-Everything (V2X) [17][18][19]. In this paper, we focus on V2V communications mode, which works by using wireless signals to exchange information between vehicles about accidents, weather, roadblocks, and traffic. ...
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