Probability and statistics with reliability, queuing and computer science applications
Probability and statistics with reliability, queuing and computer science applications
Fixed Point Iteration in Availability Modeling
Proceedings of the 5th International GI/ITG/GMA Conference on Fault-Tolerant Computing Systems, Tests, Diagnosis, Fault Treatment
Cooperative collision warning using dedicated short range wireless communications
Proceedings of the 3rd international workshop on Vehicular ad hoc networks
Performance and reliability of DSRC vehicular safety communication: a formal analysis
EURASIP Journal on Wireless Communications and Networking - Special issue on wireless access in vehicular environments
Analysis of application-specific broadcast reliability for vehicle safety communications
VANET '11 Proceedings of the Eighth ACM international workshop on Vehicular inter-networking
On the reliability of safety message broadcastin urban vehicular ad hoc networks
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Routing in Sparse Vehicular Ad Hoc Wireless Networks
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Computers
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In this paper, an analytic model is proposed for both MAC and application-level performance evaluation of periodic beacon message dissemination in the dedicated short range communications (DSRC) system on highways. Each vehicle can periodically generate beacon messages, which contain the information including position, velocity, direction, etc.. Out-dated message is replaced by the newly generated message. In order to develop a tractable analytic approximation, we first develop a semi-Markov process (SMP) model for the tagged vehicle to capture the periodic message generation, out-dated message replacement, channel contention and backoff behavior in IEEE 802.11 broadcast ad hoc networks. Further, an SMP model with an absorbing state is constructed to derive the message service time distribution. The fixed-point iteration method is utilized to obtain the converged solutions to resolve interactions between the SMPs of different vehicles. Both MAC-level and application-level performance metrics are derived. MAC-level analytic-numeric results are verified through extensive simulations. Application-level analytic-numerical results are evaluated subsequently to provide insights on network parameter settings. To ensure the quality of service (QoS) for a VANET application, application requirements in terms of application-level metrics are specified. Three typical safety-applications are evaluated in order to assess whether their application requirements can be satisfied or not.