Effcient probing for fault detection and localization of a link failure in transparent WDM networks | |
| Author | Nepal, Saurav |
| Call Number | AIT Thesis no.TC-13-05 |
| Subject(s) | Wavelength division multiplexing Optical communications |
| Note | A thesis submitted in partial ful llment 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-13-05 |
| Abstract | Fault detection and localization is essential in transparent WDM networks. Trans- mitting optical probes to monitor the network has been much investigated. However, existing works on optical probing assumes a given set of candidate probes and is some cases a given subset of nodes, called probe stations, capable of transmitting probes. This thesis proposes a scheme in which the candidate probes and probe station are jointly selected through solving a related integer linear programming (ILP) problem, with the goal to detect and localize a single link failure. In the proposed scheme, the set of candidate probes is constructed based on the shortest path trees from probe stations. Computer simulations are performed to evaluate the number of probe sta- tions and the number of failure detection probes for randomly generated network with varying number of nodes and number of links. Finally, the use of optical multicast is suggested as a means to decrease the required number of detection probes in order to reduce the resources involved in failure detection. |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TC-13-05 |
| 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) | Teerapat Sanguankotchakorn;Ahmed, Kazi Mohiuddin |
| Scholarship Donor(s) | AIT Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2013 |