# Delay Violation Probability and Age of Information Interplay in the Two-user Multiple Access Channel

## TL;DR

This paper investigates how delay violation probability and Age of Information (AoI) interact in a two-user wireless multiple access channel with multipacket reception, considering heterogeneous traffic with delay-sensitive and status update users.

## Contribution

It analyzes the impact of sampling and service rates on delay violation probability and AoI in a two-user MPR system with heterogeneous traffic constraints.

## Key findings

- Sampling rate affects delay violation probability.
- Service rate influences information freshness (AoI).
- Trade-offs exist between delay constraints and AoI performance.

## Abstract

In this paper, we study the interplay between delay violation probability and average Age of Information (AoI) in a two-user wireless multiple access channel with multipacket reception (MPR) capability. We consider a system in which users have heterogeneous traffic characteristics: one has stringent delay constraints, while the other measures a source and transmits status updates in order to keep the AoI low. We show the effect of sensor sampling rate on the delay violation probability and that of the service rate of the delay-sensitive user on information freshness.