Abstract
Scheduling algorithms in wavelength division multiplexing (WDM) single-hop
networks aim at producing an effective schedule in order to improve the networks'
performance. Apart from channel assignment, the message sequencing is an important
issue that have to be addressed when designing media access control (MAC)
protocols for WDM networks. Up until now, popular approaches have not extensively
addressed the order in which the messages are scheduled even though the messages'
service order can considerably contribute to the advance of network performance.
This paper introduces a new approach to the design of message scheduling algorithms
for WDM star networks, which is based on the use of clustering techniques.
The proposed clustering oriented—earliest available time scheduling
(CO-EATS) creates groups of nodes whose messages are destined to common nodes.
The goal of the proposed CO-EATS scheme is to decrease the probability of
scheduling messages to the same destination at successive order. The simulation
results have shown that the proposed scheme improves channel utilization and
as a result it leads to higher network throughput while it keeps mean packet
delay at low levels in comparison with conventional scheduling algorithms.
© 2008 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy