Communication and Computation Assisted Sensing Information Freshness Performance Analysis in Vehicular Networks

by   Ning Jiang, et al.

The timely sharing of raw sensing information in the vehicular networks (VNETs) is essential to safety. In order to improve the freshness of sensing information, joint scheduling of multi-dimensional resources such as communication and computation is required. However, the complex relevance among multi-dimensional resources is still unclear, and it is difficult to achieve efficient resource utilization. In this paper, we present a theoretical analysis for a novel metric Age of Information (AoI) on a communication and computation assisted spatial-temporal model. An uplink VNETs scenario where Road Side Units (RSUs) are deployed with computational resource is considered. The transmission and computation process is unified into a two-stage tandem queue and the expression of the average AoI is derived. The network interference is analyzed by modeling the VNETs as Cox Poisson Point Process based on stochastic geometry and the closed-form solution of the coverage probability and the expected data rate performance under the constraints of transmission resources is obtained. The simulation results reveal the basic relationship between communication and computation capacity and show that communication and computation should reach a tradeoff to improve resource utilization while ensuring real-time information requirement.


page 1

page 2

page 3

page 4

page 5

page 6


Ultra-Reliable and Low-Latency Vehicular Communication: An Active Learning Approach

In this letter, an age of information (AoI)-aware transmission power and...

Analysis of Age of Information in Dual Updating Systems

We study the average Age of Information (AoI) and peak AoI (PAoI) of a d...

Fundamental Detection Probability vs. Achievable Rate Tradeoff in Integrated Sensing and Communication Systems

Integrating sensing functionalities is envisioned as a distinguishing fe...

Age-of-Information for Computation-Intensive Messages in Mobile Edge Computing

Age-of-information (AoI) is a novel metric that measures the freshness o...

Optimal Dynamic Multi-Resource Management in Earth Observation Oriented Space Information Networks

Space information network (SIN) is an innovative networking architecture...

Sensing-Assisted Communication in Vehicular Networks with Intelligent Surface

The recent development of integrated sensing and communications (ISAC) t...

Client-Based Intelligence for Resource Efficient Vehicular Big Data Transfer in Future 6G Network

Vehicular big data is anticipated to become the "new oil" of the automot...

Please sign up or login with your details

Forgot password? Click here to reset