TY - GEN
T1 - A new dynamic wavelength assignment scheme in wavelength-convertible WBS networks
AU - Hsu, Ching Fang
AU - Lin, Fang Sheng
AU - Hsu, Ke Kuan
PY - 2008/9/1
Y1 - 2008/9/1
N2 - In the paper, we study the wavelength assignment problem in waveband switching (WBS) networks, which is composed of multi-granular optical cross-connect (MG-OXCs) interconnected by fiber links. WBS networks with MG-OXCs can route traffic at multiple granularities at the same time; therefore, the complexity of switching fabrics can be efficiently reduced. Moreover, in order to relax the wavelength continuity constraint on lightpath establishments, each MG-OXC node is equipped with certain number of wavelength converters. Focusing on minimizing the extra port consumption and utilizing wavelength converters in an efficient manner, we propose a heuristic algorithm, named Least-Configuration with Bounded Conversion (LCBC), under the dynamic traffic environment. Simulation results show that our algorithm can achieve a considerable port saving and significant performance gain by a well-design cost function.
AB - In the paper, we study the wavelength assignment problem in waveband switching (WBS) networks, which is composed of multi-granular optical cross-connect (MG-OXCs) interconnected by fiber links. WBS networks with MG-OXCs can route traffic at multiple granularities at the same time; therefore, the complexity of switching fabrics can be efficiently reduced. Moreover, in order to relax the wavelength continuity constraint on lightpath establishments, each MG-OXC node is equipped with certain number of wavelength converters. Focusing on minimizing the extra port consumption and utilizing wavelength converters in an efficient manner, we propose a heuristic algorithm, named Least-Configuration with Bounded Conversion (LCBC), under the dynamic traffic environment. Simulation results show that our algorithm can achieve a considerable port saving and significant performance gain by a well-design cost function.
UR - http://www.scopus.com/inward/record.url?scp=50249148455&partnerID=8YFLogxK
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U2 - 10.1109/AINA.2008.33
DO - 10.1109/AINA.2008.33
M3 - Conference contribution
AN - SCOPUS:50249148455
SN - 0769530958
SN - 9780769530956
T3 - Proceedings - International Conference on Advanced Information Networking and Applications, AINA
SP - 554
EP - 559
BT - Proceedings - 22nd International Conference on Advanced Information Networking and Applications, AINA 2008
T2 - 22nd International Conference on Advanced Information Networking and Applications, AINA 2008
Y2 - 25 March 2008 through 28 March 2008
ER -