3 research outputs found
Ultra-Reliable Low-Latency Communications in Autonomous Vehicular Networks
Autonomous vehicles are expected to emerge as a main trend in vehicle
development over the next decade. To support autonomous vehicles,
ultra-reliable low-latency communications (URLLC) is required between
autonomous vehicles and infrastructure networks, e.g., fifth generation (5G)
cellular networks. Hence, reliability and latency must be jointly investigated
in 5G autonomous vehicular networks. Utilizing the Euclidean norm theory, we
first propose a reliability and latency joint function to evaluate the joint
impact of reliability and latency in 5G autonomous vehicular networks. The
interactions between reliability and latency are illustrated via Monto-Carlo
(MC) simulations of 5G autonomous vehicular networks. To improve both the
reliability and latency performance and implement URLLC, a new network slicing
solution that extends from resource slicing to service and function slicing is
presented for 5G autonomous vehicular networks. The simulation results indicate
that the proposed network slicing solution can improve both the reliability and
latency performance and ensure URLLC in 5G autonomous vehicular networks
Uplinks Analysis and Optimization of Hybrid Vehicular Networks
5G vehicular communication is one of key enablers in next generation
intelligent transportation system (ITS), that require ultra-reliable and low
latency communication (URLLC). To meet this requirement, a new hybrid vehicular
network structure which supports both centralized network structure and
distributed structure is proposed in this paper. Based on the proposed network
structure, a new vehicular network utility model considering the latency and
reliability in vehicular networks is developed based on Euclidean norm theory.
Building on the Pareto improvement theory in economics, a vehicular network
uplink optimization algorithm is proposed to optimize the uplink utility of
vehicles on the roads. Simulation results show that the proposed scheme can
significantly improve the uplink vehicular network utility in vehicular
networks to meet the URLLC requirements
Performance Analysis of Urban Mmwave Multi-hop V2V Communications with Shifted-Exponential Distribution Headway
With the emergence of autonomous driving and 5G mobile communication systems,
how to design vehicular networks to meet the requirements of ultra-reliable
low-latency communication (URLLC) between autonomous vehicles is widely
concerned by the academia and industry. In this paper, message transmission
delay and reliability between autonomous vehicles based on millimeter wave
(mmwave) multi-hop V2V communications under urban road environment are
investigated. Considering the fact that vehicles cannot come arbitrarily close
to each other, shifted-exponential distribution is proposed to model the
headway distance (the distance between the head of a vehicle and the head of
its follower). Simulation results show that message transmission delay and
reliability decrease with the increase of the path loss exponent and are also
affected by the minimum safe distance between adjacent vehicles