Abstract
In order to evaluate the performance of Reconfigurable Optical Add/Drop Multiplexers (ROADMs) consisting of a single large switch, in circuit switched Wavelength-Division Multiplexing (WDM) networks, a theoretical Queuing Network Model (QNM) is developed, which consists of two M/M/c/c loss systems each of which is analyzed in isolation. An overall analytical blocking probability of a ROADM is obtained. This model can also be used for the performance optimization of ROADMs with a single switch capable of switching all or a partial number of the wavelengths being used. It is demonstrated how the proposed model can be used for the performance evaluation of a ROADM for different number of wavelengths inside the switch, in various traffic intensity conditions producing an exact blocking probability solution. The accuracy of the analytical results is validated by simulation.
| Original language | English |
|---|---|
| Pages (from-to) | 1215-1220 |
| Number of pages | 6 |
| Journal | Journal of Networks |
| Volume | 5 |
| Issue number | 10 |
| Publication status | Published - Oct 2010 |
Keywords
- Blocking probability
- Circuit switched networks
- M/M/c/c loss system
- Optical switch
- QNM
- ROADMs
- WDM