Classification of Two-Link Failures for All-Optical Networks

2001 ◽  
Author(s):  
Steven S. Lumetta ◽  
Muriel Médard
Keyword(s):  
Optical Networks ◽  
Link Failures ◽  
All Optical

Localizing link failures in all-optical networks using monitoring tours

2014 ◽  
Vol 58 ◽  
pp. 2-12 ◽  
Author(s):  
Sangman Cho ◽  
Srinivasan Ramasubramanian
Keyword(s):  
Optical Networks ◽  
Link Failures ◽  
All Optical

ON THE FAULT-TOLERANCE AND SIZE OF WDM OPTICAL NETWORKS

2011 ◽  
Vol 21 (01) ◽  
pp. 3-12
Author(s):  
PIETRO CERES ◽  
RAFFAELE CERES
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Data Streams ◽  
Fault Tolerant ◽  
Wdm Optical Networks ◽  
Lower And Upper Bounds ◽  
Link Failures ◽  
Wavelength Division ◽  
Multiple Data ◽  
All Optical

In optical networks the approach called wavelength division multiplexing allows multiple data streams to be transmitted concurrently along a single optical link, with different streams assigned separate wavelengths. In this paper we refer to all-optical networks, in which each connection is totally optical except at the terminal nodes. For these networks we determine the minimum possible number of links required to perform a fault tolerant broadcast from any node, in terms of the number of nodes, the number of link failures to tolerate and the number of wavelengths to use. We also give lower and upper bounds on the number of wavelengths required for any broadcast which tolerates a given number of link failures on networks with arbitrary topologies.

scholarly journals Maximally Spatial-Disjoint Lightpaths in Optical Networks

2018 ◽  
Vol 10 (2) ◽  
pp. 733 ◽  
Author(s):  
M. Waqar Ashraf ◽  
Sevia M. Idrus ◽  
Farabi Iqbal
Keyword(s):  
Optical Networks ◽  
Optical Transmission ◽  
Routing Algorithm ◽  
Spatial Distance ◽  
Physical Plane ◽  
Network Nodes ◽  
Link Failures ◽  
All Optical ◽  
End To End

Lightpaths enable end-to-end all-optical transmission between network nodes. For survivable routing, traffic is often carried on a primary lightpath, and rerouted to another disjointed backup lightpath in case of the failure of the primary lightpath. Though both lightpaths can be physically disjointed, they can still fail simultaneously if a disaster affects them simultaneously on the physical plane. Hence, we propose a routing algorithm for provisioning a pair of link-disjoint lightpaths between two network nodes such that the minimum spatial distance between them (while disregarding safe regions) is maximized. Through means of simulation, we show that our algorithm can provide higher survivability against spatial-based simultaneous link failures (due to the maximized spatial distance).

scholarly journals Signaling free localization of node failures in all-optical networks

2014 ◽  
Author(s):  
Janos Tapolcai ◽  
Lajos Ronyai ◽  
Eva Hosszu ◽  
Pin-Han Ho ◽  
Suresh Subramaniam
Keyword(s):  
Optical Networks ◽  
All Optical ◽  
Node Failures

scholarly journals Methods for physical impairment constrained routing with selected protection in all-optical networks

2013 ◽  
Vol 56 (1) ◽  
pp. 177-188 ◽  
Author(s):  
Péter Soproni ◽  
Tibor Cinkler ◽  
Jacek Rak
Keyword(s):  
Optical Networks ◽  
Physical Impairment ◽  
All Optical
Sign in / Sign up

Export Citation Format

Share Document