An architecture is proposed for a wavelength division multiplexed (WDM) optical packet switch equipped with both limited range wavelength converters (LRWCs) and shared full range wavelength converters (FRWCs). The FRWCs are used to overcome the performance degradation in terms of packet loss probability due to the use of LRWCs only. A probabilistic model is proposed to dimension the number of shared FRWCs so that the same packet loss probability of a switch equipped with only shared FRWCs is guaranteed. After introducing a cost model of the converters depending on the range conversion, we show that the architecture may allow conversion cost saving in the order of 85%.
Cost Evaluation of Optical Packet Switches Using Both Limited-Range and Full-Range Converters for Contention Resolution / Eramo, Vincenzo; Listanti, Marco; A., Germoni. - ELETTRONICO. - (2007), pp. 2379-2384. (Intervento presentato al convegno IEEE Global Telecommunications Conference (GLOBECOM 07) tenutosi a Washington (USA) nel 26-30 Novembre 2007) [10.1109/GLOCOM.2007.453].
Cost Evaluation of Optical Packet Switches Using Both Limited-Range and Full-Range Converters for Contention Resolution
ERAMO, Vincenzo;LISTANTI, Marco;
2007
Abstract
An architecture is proposed for a wavelength division multiplexed (WDM) optical packet switch equipped with both limited range wavelength converters (LRWCs) and shared full range wavelength converters (FRWCs). The FRWCs are used to overcome the performance degradation in terms of packet loss probability due to the use of LRWCs only. A probabilistic model is proposed to dimension the number of shared FRWCs so that the same packet loss probability of a switch equipped with only shared FRWCs is guaranteed. After introducing a cost model of the converters depending on the range conversion, we show that the architecture may allow conversion cost saving in the order of 85%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
