Publish/Subscribe Systems become increasingly important, mainly because they
provide a full decoupling between the publishers and the subscribers, with respect to space,
time, and synchronization. This research presents an overview of publish/subsc
ribe
systems and epidemic algorithms (especially the directed ones), and studies the
performance of directed epidemic algorithms used to ensure the reliability of
publish/subscribe systems. Adopting Scribe system and simulation using OMNET++, the
paper evaluates different directed epidemic algorithms by considering many factors:
targeted range width, number of rounds, number of nodes, and packet loss rate, on each of:
the reliability, overhead, and mean latency.
