Open AccessA Shared Buffer‐Constrained Topology Reconfiguration Scheme in Wavelength Routed Networks
Author(s) -
Youn Chan Hyun,
Song Hyewon,
Keum JiEun
Publication year - 2005
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.05.0104.0162
Subject(s) - control reconfiguration , quality of service , computer science , scheme (mathematics) , network topology , computer network , topology (electrical circuits) , logical topology , distributed computing , buffer (optical fiber) , engineering , mathematics , telecommunications , mathematical analysis , electrical engineering , embedded system
The reconfiguration management scheme changes a logical topology in response to changing traffic patterns in the higher layer of a network or the congestion level on the logical topology. In this paper, we formulate a reconfiguration scheme with a shared buffer‐constrained cost model based on required quality‐of‐service (QoS) constraints, reconfiguration penalty cost, and buffer gain cost through traffic aggregation. The proposed scheme maximizes the derived expected reward‐cost function as well as guarantees the required flow's QoS. Simulation results show that our reconfiguration scheme significantly outperforms the conventional one, while the required physical resources are limited.