Hierarchical inter-domain routing in optical DWDM networks

Q. Liu, V. M. Muthalaly, N. Ghani

Research output: Chapter in Book/Report/Conference proceedingConference contribution


DWDM is a core technology that is now widely used in long-haul networks, owing to its huge terabits/second link rates. Routing in DWDM networks has long been a research focus. However, most studies have only looked at single domain architectures. Nevertheless, as DWDM technology proliferates there is a critical need for multi-domain control algorithms. Namely, as the number of inter-connected networks (domains) increase, it becomes impossible for a single node to maintain information about the whole network. Needless to say, there is a pressing need for some kind of information aggregation and dissemination of this information in a constrained manner. Topology abstraction provides a way to aggregate/abstract the information pertaining to a whole domain so as to minimize the information divulged to other domains. In this work we compare different topology abstraction schemes coupled with a few wavelength assignment schemes and negotiate a trade off between blocking probability and routing overhead.

Original languageEnglish (US)
Title of host publicationProceedings of the 38th Southeastern Symposium on System Theory
Number of pages5
StatePublished - 2006
Externally publishedYes
Event38th Southeastern Symposium on System Theory - Cookeville, TN, United States
Duration: Mar 5 2006Mar 7 2006

Publication series

NameProceedings of the Annual Southeastern Symposium on System Theory


Other38th Southeastern Symposium on System Theory
Country/TerritoryUnited States
CityCookeville, TN

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • General Mathematics


Dive into the research topics of 'Hierarchical inter-domain routing in optical DWDM networks'. Together they form a unique fingerprint.

Cite this