Title :
Limited-range wavelength conversion modeling for asynchronous optical packet-switched networks
Author :
Almeida, Raul C., Jr. ; Martins-Filho, Joaquim F. ; Waldman, Helio
Author_Institution :
Departamento de Eletronica e Sistemas, Univ. Fed. de Pernambuco, Recife, Brazil
Abstract :
Packet contention is a very important issue in optical packet-switched networks. This paper analyzes asynchronous optical packet switches when wavelength conversion is used as contention resolution mechanism. A wavelength converter can convert one wavelength to another and consequently improve the network performance. In practical systems, a wavelength converter normally presents limited range conversion capability. In this paper we propose a Markov model that enables the calculation of packet blocking probability for asynchronous optical packet switches equipped with single per channel limited-range wavelength converters. The analytical model is based on an infinitely fine input granularity assumption and it is shown to present a good approximation with simulation results.
Keywords :
Markov processes; optical fibre networks; packet switching; Markov model; asynchronous optical packet-switched networks; contention resolution mechanism; granularity assumption; limited-range wavelength conversion modeling; packet blocking probability; packet contention; Analytical models; High speed optical techniques; Optical buffering; Optical fiber networks; Optical packet switching; Optical signal processing; Optical wavelength conversion; Probability; Switches; Wavelength conversion;
Conference_Titel :
Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on
Print_ISBN :
0-7803-9341-4
DOI :
10.1109/IMOC.2005.1580015