Abstract
Optical packet switch with multicast capability enables a broad range of
applications in next generation optical networks. In this paper, we propose
a cost-effective scheme to enhance the traffic performance of our earlier
reported optical wavelength-routed multicast packet switch by modifying
rather than adding multicast modules in the switch. A packet scheduling
technique is introduced to substantially reduce the output contention for
the switch. The effectiveness of our proposed scheme in conjunction with the
scheduling technique is analyzed and validated by evaluation of packet loss
performance of the modified multicast packet switch through simulations. The
simulation results show that the multicast packet loss probability of the
modified multicast switch can be significantly reduced without increasing
the number of multicast modules by our proposed scheme. This means that to
achieve an acceptable level of the multicast packet loss probability, the
modified multicast switch requires fewer multicast modules in comparison
with our earlier reported switch.
© 2009 IEEE
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