Abstract (EN):
Ethernet is a widely used network technology, with a Medium Access Control
protocol based on the collision detection between randomly initiated transmissions.
It has a non-deterministic behaviour, due to the use of a probabilistic contention
resolution algorithm, which impairs the support of real-time communications. In this
paper, it is proposed the use of a modified algorithm for the collision resolution in
shared Ethernet networks. Such algorithm, referred as high priority Binary
Exponential Backoff (h-BEB), provides high priority traffic separation, enabling the
support of real-time communications. It allows multiple Ethernet standard devices
to coexist with one h-BEB modified station in the same network segment, imposing a
higher priority for the transfer of h-BEB related traffic. The probabilistic analysis of
traffic separation provided by the proposed algorithm shows that it guarantees an
access delay significantly smaller for an h-BEB station, when compared with the
access delay for BEB stations.
Language:
English
Type (Professor's evaluation):
Scientific
No. of pages:
24
License type: