Abstract
Feature Isue on
Optical Access Networks (OAN)
As networks have evolved in
sophistication, the twin concerns of quality-of-service (QoS) and efficiency have
propagated down the hierarchical levels of networking and are now considered
important in access networks as well. Motivated by these two concerns, researchers
have recognized traffic grooming as an increasingly important area in optical
networking in recent years. Very recently, a min-max approach to network cost
optimization has emerged as a new focus area. In this approach, the maximum
electronic-switching capability at any network node is sought to be minimized. In
this paper, we propose heuristics for traffic grooming with this objective in ring
networks, which are of practical importance, especially in access network
architectures. We advance two approaches, both based on the concept of partitioning
the traffic matrix, but in different ways. The approaches are of complementary
strength, being useful for different traffic patterns. We present numerical results
validating the performance of the algorithms.
© 2005 Optical Society of America
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