A fault-tolerant backbone network architecture targeting time-critical communication for avionic WDM LANs

Authors:
Dexiang Wang;Arvindhan Kumar;Madhan Sivakumar;Janise Y. McNair
Affiliations:
Wireless And Mobile Systems Laboratory, University of Florida, Gainesville, Florida;Wireless And Mobile Systems Laboratory, University of Florida, Gainesville, Florida;University of Florida, Gainesville, Florida;University of Florida, Gainesville, Florida
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 3
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Abstract

In this paper, we focus on the design and analysis of a torus-based backbone architecture which targets to meet both the low delay and high reliability requirements of avionic time-critical communications. Reliable optical connection between arbitrary source-destination pairs is proposed by enabling four non-overlapping lightpaths between the source and destination, which makes the network tolerant to at least three arbitrary link failures without losing connectivity. A greedy algorithm is introduced to set up the four non-overlapping lightpaths with the aim of maximizing two-terminal reliability (TTR), as well as minimizing signal attenuation and propagation delay. A wavelength assignment and reuse (WAR) method is used to reduce by half the wavelength requirement for all-to-all communication in a case study of 4×4 torus. Both probabilistic analysis and a packet-level simulation reveal that the proposed architecture can provide efficient communication with a 3-fault reliability guarantee.