AI summaryⓘ
The authors study how to ensure messages in wireless networks are decoded quickly and reliably under certain signal quality limits. They focus on measuring the worst-case delays for decoding messages sent from devices to a central system in a network without traditional cell boundaries. Using a mathematical approach called spatial network calculus, the authors show how to guarantee these delay limits by managing network interference carefully. Their work helps understand timing guarantees when decoding multiple overlapping signals using a method called successive interference cancellation.
wireless networksdecoding delaysignal-to-interference-plus-noise ratio (SINR)successive interference cancellationcell-free networkuplinkspatial network calculusspatial regulationworst-case delay
Authors
Kevin Zagalo, Jean-Marie Gorce, François Baccelli
Abstract
This paper is focused on decoding delay guarantees in wireless networks, where messages have a given signal-to-interference-plus-noise ratio threshold $η_0$ to meet in order to be successfully decoded, and where this should occur within some strict time constraints. Its main contribution consists in quantifying the worst-case transmissions decoding delays in the uplink of a cell-free network using successive interference cancellation. We show how such decoding delay guarantees can be obtained using spatial network calculus, a new tool introduced recently, and in particular spatial regulation.