Joint Security and Train Control Design in Blockchain-Empowered CBTC System

Zhu, Li; Liang, Hao; Wang, Hongwei; Ning, Bin; Tang, Tao

doi:10.1109/jiot.2021.3097156

Cited by 57 publications

(20 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The information flow topologies can describe the configuration of V2X communication links from one CAV to one or more CAVs in the platoon. Earlystage platoons primarily focus on predecessor following type which means that a vehicle can only obtain the information of its nearest front vehicles [20][21][22][23]. Under the V2X communication framework, more types of information flow topologies are proposed, such as the two-predecessors following type [24], the predecessor-leader following type [25], and the bidirectional type [26,27].…”

Section: Introductionmentioning

confidence: 99%

Stability and Safety of Cooperative Adaptive Cruise Control Vehicular Platoon under Diverse Information Flow Topologies

Dai

Yang

Zhong

et al. 2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

For the cooperative adaptive cruise control (CACC) vehicular platoon, apart from decentralized controllers, the dynamics of a platoon can be affected substantially by the information flow among connected and automated vehicles (CAVs). Existing research studies mainly focus on the stability analysis of platoons where CAVs only adopt the predecessor-following (PF) communication scheme; however, when CAVs “look” further ahead or behind than one vehicle, the stability of platoons might change. To this end, this study seeks to explore the stability and investigate the rear-end collision risk of CACC vehicular platoon under diverse information flow topologies. The research first comprehensively reviews typical information flow topologies for CAV platoons and platoon stability criteria for analyzing local and string stability of platoons. Moreover, the CACC longitudinal dynamic model is derived using the exact feedback linearization technique, which accommodates the inertial delay of powertrain dynamics. Accordingly, sufficient conditions of stability are mathematically derived to guarantee distributed frequency-domain-based control parameters. Simulation experiments are conducted to verify the correctness of derived sufficient stability conditions. The results show that platoons could better maintain stability with more vehicle information taken into consideration. However, when assessing the safety, it is found that the bidirectional type information flow topology would increase rear-end collision risk for CAV platoon. Further, the information flow topology of two-predecessor-leader following is the most recommended to enhance fully CAV platoon stability.

show abstract

Section: Introductionmentioning

confidence: 99%

Stability and Safety of Cooperative Adaptive Cruise Control Vehicular Platoon under Diverse Information Flow Topologies

Dai

Yang

Zhong

et al. 2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…With the development of urban rail transit in big cities, the DCS (Data Communication System) in it also introduces advanced and reliable technologies. LTE-M (Long Term Evolution for Metro) is a train-wayside communication system for integrated service including CBTC (Communication-Based Train Control) and IMS (Image Monitoring System) in urban rail transit/metro based on TD-LTE technology [1,2]. TD-LTE is a time division duplex communication system based on OFDM (Orthogonal Frequency Division Multiplexing) technology with a frequency reuse factor of 1.…”

Section: Introductionmentioning

confidence: 99%

Location-Based LTE-M Uplink Power Control and Radio Resource Scheduling

Wang

Jiang

2022

Sensors

View full text Add to dashboard Cite

Long-Term Evolution for Metro (LTE-M) is adopted as the data communication system in urban rail transit to exchange bio-direction train-wayside information. Reliable data communication is essential in LTE-M systems for ensuring trains’ operation safety and efficiency. However, the inter-cell inference problem exists in LTE results in throughput reduction, especially when trains are in the edge area of adjacent cells, and has negative effects on train operation. The uplink power control and radio resource scheduling scheme is studied in LTE-M system which differentiates from public cellular networks in user numbers and the availability of the trains’ locations. Since the locations of the trains are available, the interferences from the neighbouring cells can be calculated, and a location based algorithm together with soft frequency reuse is designed. In addition, a proportional fair algorithm is taken to improve uplink radio resource scheduling considering the fairness to different train-wayside communication service requirements. Through simulation, the practicability of the proposed schemes in communication system of urban rail transit is verified in aspects of radio power control and data communication throughput.

show abstract

“…With the rise of intelligent transportation, information technology and automobile industry are becoming deeply integrated, and vehicle-to-everything (V2X) has been an important part of intelligent transportation system (ITS), which can connect vehicles with surrounding vehicles, people, transportation infrastructures, and cloud. As a structural part of V2X, V2V communication systems have drawn great attention for the potential to reduce accident rates and improve traffic efficiency [2,3].…”

Section: Introductionmentioning

confidence: 99%

Channel Modelling for V2V Highway Scenario Based on Birth and Death Process

Feng

Tao

et al. 2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

Vehicle-to-vehicle (V2V) communication has been widely researched recently since the potential abilities of improving traffic efficiency and reducing accident rates. Since the high vehicle mobility, a huge number of accidents happen on highway. So, it is necessary to study the highway channel characteristic to ensure the driving safety. Due to the high speed of vehicles, there exists serious nonstationarity of highway channel, leading to the dissatisfaction of the wide-scene stationary uncorrelated scattering (WSSUS) assumption. Thus, a distant channel model is needed. In this paper, we carried out a measurement campaign of highway channel. Based on the measured data, we conduct a birth and death channel model, which is depicted by Markov chain. We propose the first-order model and the second-order model, respectively. The steady probabilities and transition probabilities are given. To compare the two models, we utilize the multipath living time and Kullback-Leibler (KL) distance. What is more, autocorrelation function (ACF) is used to describe the nonstationarity.

show abstract

Joint Security and Train Control Design in Blockchain-Empowered CBTC System

Cited by 57 publications

References 36 publications

Stability and Safety of Cooperative Adaptive Cruise Control Vehicular Platoon under Diverse Information Flow Topologies

Stability and Safety of Cooperative Adaptive Cruise Control Vehicular Platoon under Diverse Information Flow Topologies

Location-Based LTE-M Uplink Power Control and Radio Resource Scheduling

Channel Modelling for V2V Highway Scenario Based on Birth and Death Process

Contact Info

Product

Resources

About