In this paper, we address the problem of timely delivery of status update packets in a real-time communication system, where a transmitter sends status updates generated by a source to a receiver over an unreliable channel. The timestamps of transmitted and received packets are measure d using separate clocks located at the transmitter and receiver, respectively. To account for possible clock drift between these two clocks, we consider both deterministic and probabilistic drift scenarios. We analyze the system’s performance regarding the Age of Information (AoI) and derive closed-form expression s for the distribution and the average AoI under both clock drift models. Additionally, we explore the impact of key system parameters on the average AoI through analytical and numerical results.
So timely, Yet so stale: The impact of clock drift in real-time systems
Submitted to ArXiV, 31 December 2024
Type:
Conférence
Date:
2024-12-31
Department:
Systèmes de Communication
Eurecom Ref:
8027
Copyright:
© EURECOM. Personal use of this material is permitted. The definitive version of this paper was published in Submitted to ArXiV, 31 December 2024 and is available at :
See also:
PERMALINK : https://www.eurecom.fr/publication/8027