Improvements of determinism in WI-FI real-time protocol for agricultural machine clusters

Fully automated agricultural field treatments and Precise Farming are coming in shortly; yet increasing production needs demand a more efficient, planned and harmonized interaction between the machinery clusters involved in the work session. Soon a strong, effective and integrated standardization will be more than needed. This is the path the ISO standardization working group ISO TC-127/SC19/WG5 has taken. The paper describes the further enhancements done from previous works [1,2]. Particularly, we focused on stabilizing performances of high priority communications at the expense of best-effort, low urgency traffic. Performances are explained as [2]. The main improvements concern some kernel modifications, especially about the networking management. The results will show significant steps forward towards a quasi-isochronous transport protocol that manages high priority flows ensuring a high level of determinism and throughput.