Age of Information in the Presence of an Adversary

Subhankar Banerjee; Sennur Ulukus

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arXiv · 2202.04050

Age of Information in the Presence of an Adversary

Subhankar Banerjee·Sennur Ulukus

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Abstract

We consider a communication system where a base station serves $N$ users, one user at a time, over a wireless channel. We consider the timeliness of the communication of each user via the age of information metric. A constrained adversary can block at most a given fraction, $\alpha$, of the time slots over a horizon of $T$ slots, i.e., it can block at most $\alpha T$ slots. We show that an optimum adversary blocks $\alpha T$ consecutive time slots of a randomly selected user. The interesting consecutive property of the blocked time slots is due to the cumulative nature of the age metric.

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Subhankar Banerjee, Sennur Ulukus. 2022-02-08. Age of Information in the Presence of an Adversary. https://arxiv.org/abs/2202.04050

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