Campus Units
Electrical and Computer Engineering
Document Type
Conference Proceeding
Conference
International Conference on Broadband Communications, Networks and Systems (BROADNETS 2010)
Publication Version
Accepted Manuscript
Link to Published Version
https://doi.org/10.1007/978-3-642-30376-0_23
Publication Date
2012
Journal or Book Title
Broadband Communications, Networks, and Systems
First Page
341
Last Page
360
DOI
10.1007/978-3-642-30376-0_23
Conference Title
International Conference on Broadband Communications, Networks and Systems (BROADNETS 2010)
Conference Date
October 25-27, 2010
City
Athens, Greece
Abstract
In this paper we propose a new efficient fault tolerant multipoint routing algorithm for optical networks. The routing for a multipoint request is accomplished by finding a bidirectional cycle simple or nonsimple including all nodes that are participating in the multipoint session. Each link can be used only once. Use of a cycle ensures that a single link (or node in case of simple cycle) failure does not interrupt the session except the failed node if it was part of the multipoint session. Determining the smallest cycle with a given set of Multi-point (MP) nodes is a NP-Complete problem. Therefore, we explore heuristic algorithms to determine an appropriate cycle to route multipoint connections. We allow non-simple cycles to route requests as they use fewer resources than simple cycles in some cases. We also provide an ILP formulation for routing multipoint request and compare its results with the output of our best heuristic algorithm. On Arpanet for over 80% of the time, our best heuristic is able to find a cycle that is within 1.2 times that of the optimal.
Copyright Owner
ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Lastine, David; Sankaran, Suresh; and Somani, Arun K., "A Fault-Tolerant Multipoint Cycle Routing Algorithm (MCRA)" (2012). Electrical and Computer Engineering Conference Papers, Posters and Presentations. 117.
https://lib.dr.iastate.edu/ece_conf/117
Comments
This is a post-peer-review, pre-copyedit version of a proceeding published as Lastine D., Sankaran S., Somani A.K. (2012) A Fault-Tolerant Multipoint Cycle Routing Algorithm (MCRA). In: Tomkos I., Bouras C.J., Ellinas G., Demestichas P., Sinha P. (eds) Broadband Communications, Networks, and Systems. BROADNETS 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 66. Springer, Berlin, Heidelberg. The final authenticated version is available online at DOI: 10.1007/978-3-642-30376-0_23. Posted with permission.