The paper “Supporting Soft Real-Time Tasks in Zephyr with Constant Bandwidth Servers”, authored by SoftCPS researchers Alexander Paschoaletto, Paulo Baltarejo Sousa, Luis Miguel Pinho and Tiago Carvalho, received an “Outstanding Paper Award”, at the 28th IEEE International Synpoisum on Real-Time Distributed Computing (ISORC 2025) Conference.
IEEE ISORC was founded in 1998 (with its first meeting in Kyoto, Japan) to address research into the application of real-time object-oriented distributed technology. Since then, ISORC has continually evolved to meet the latest challenges faced by researchers and practitioners in the real-time domain, with an emphasis on object-, component- and service-oriented systems and solutions.
The paper proposes an approach to extend the Zephyr open-source real-time operating system, currently maintained by the Linux Foundation, to support aperiodic tasks with Constant Bandwidth Servers (CBS). The paper provides the proposed architecture and
the design and implementation of the CBS mechanisms in the operating system, which are then evaluated in two test cases in an embedded platform.

