Age of Information of One-Hop Broadcast Communications in a CSMA Network

Abstract

We consider a network of agents that send periodic updates to their neighbors. A trade-off between load on the shared communication channel and data timeliness is obtained by looking at the Age of Information (AoI) metric. We develop a model of a Carrier-Sense Multiple Access (CSMA) network with partial sensing, to calculate the AoI of one-hop broadcast messages exchanged among the agents. The model is applied to beacon messages in a vehicular network to gain insight into the impact of system parameters.

Publication
IEEE Communications Letters
Ion Turcanu
Ion Turcanu
Research and Technology Associate

My research interests include communications protocols for multi-technology vehicular networks, time-sensitive networking for in-vehicle communications, and next-generation cellular networks.