FF-DBF-WIN: On the Forced-Forward Demand-Bound Function Analysis for Wireless Industrial Networks

Wireless Industrial Networks (WINs) have brought to the forefront the need for real-time strategies to ensure network schedulability. The Demand Bound Function (DBF) has recently been borrowed from the multicore scheduling theory and adapted to the wireless industrial domain to compute the network demand. However, a more precise estimation can be obtained by using alternative supply/demand analyses. This paper proposes the forced-forward demand bound function to estimate the network demand and better determine the schedulability of WINs.