2019
DOI: 10.1002/dac.3920
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Post‐Disaster least loaded lightpath routing in elastic optical networks

Abstract: SummaryDisaster events directly affect the physical topology of core networks and may lead to simultaneous failure of multiple lightpaths leading to massive service outages for network operators. To recover from such a failure scenario, the existing routing algorithms running on network nodes (routers or switches) typically attempt to reestablish the connections over new routes with shortest distances and hop count approach. However, this approach may result in congestion on some links, while other links may h… Show more

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Cited by 8 publications
(3 citation statements)
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“…Depending on the network type, HP connections can be present between nodes situated at close proximity (NN), situated further apart (FN), or among random node (RN) pairs. Although the shortest path is generally calculated in terms of the actual propagation distance (DB), it can also be measured in terms of the number of hops (HB) [57,58]. Therefore, results have been repeated considering both HB and DB shortest path calculation methods.…”
Section: Simulation Settingmentioning
confidence: 99%
“…Depending on the network type, HP connections can be present between nodes situated at close proximity (NN), situated further apart (FN), or among random node (RN) pairs. Although the shortest path is generally calculated in terms of the actual propagation distance (DB), it can also be measured in terms of the number of hops (HB) [57,58]. Therefore, results have been repeated considering both HB and DB shortest path calculation methods.…”
Section: Simulation Settingmentioning
confidence: 99%
“…In the superchannel, multi-flow optical transponder is employed rather than single line rate transponder. [3][4][5][6] In a fixed grid DWDM, 1000 Gb/s polarization-multiplexed quadrature phase-shift keying (PM-QPSK) could be transmitted using 10 × 100 Gb/s subcarriers that require 500 GHz of the optical spectrum, whereas in EON it could be transmitted using 200 GHz of the optical spectrum. Hence, EON provides up to 150% improvement in the SE over a fixed grid DWDM.…”
Section: Introductionmentioning
confidence: 99%
“…According to the data forecasting report by Cisco, 18.4 billion devices are connected to Internet protocol (IP) networks in 2018, and the global IP traffic crossed 122 Exabyte data per month in year 2017 and is expected to increase with a compound annual growth rate of 26% by 2022 2 . This traffic mainly consists of commercial, business, or both kind of services such as fog‐and‐cloud computing, video‐on‐demand, IoT, online gaming, e‐commerce, video conferencing, machine learning, and store‐and‐forward bulk data 3–6 . These services needed variable spectrum bandwidth and high data rate.…”
Section: Introductionmentioning
confidence: 99%