Blocking probability analysis of optical waveband switching | |
| Author | Khan, Akhtar Nawaz |
| Call Number | AIT Thesis no.TC-09-16 |
| Subject(s) | Wavelength division multiplexing Optical communications |
| Note | Submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Telecommunications, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. TC-09-16 |
| Abstract | Waveband switching (WBS) has a potential to reduce the amount of optical switch ports needed in an all-optical network compared to wavelength switching (WLS). To support WBS, a switching node must be equipped with a multi-granular optical cross connect (MG-OXC). This thesis investigates the performance of the end-to-end (ETE) lightpath grouping strategy for an MG-OXC-based WBS network under dynamic traffic. The main performance measure is the average call blocking probability, where a call refers to a request for a lightpath to be set up from the source node to the destination node. We particularly focus on the effects of varying the switch parameter that determines the fraction of wavebands that can be dropped at an MG-OXC. In addition, we investigate the effects of varying the waveband granularity, which determines the number of wavelengths in each waveband. The blocking probability is computed analytically based on the Erlang B formula without the wavelength continuity constraint, and is obtained from computer simulations for both cases with and without the wavelength continuity. |
| Year | 2009 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TC-09-16 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Poompat Saengudomlert |
| Examination Committee(s) | Ahmed, Kazi M.;Teerapat Sanguankotchakorn |
| Scholarship Donor(s) | N-W.F.P., University of Engineering and Technology Peshawar, Pakistan;AIT Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2009 |