Enhanced Algorithm for Logical Topology-Based Fault Link Recovery in Crossbar Networks

2021 ◽  
pp. 57-70
Author(s):  
S. Umarani ◽  
S. PavaiMadheswari
Keyword(s):  
Logical Topology

A Joint Multicast Optimization Approach for QoS Provisioning in Optical Label Switching (OLS) Networks

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Yassine Khlifi ◽  
Majid Alotaibi
Keyword(s):  
Traffic Management ◽  
Network Performance ◽  
Data Transfer ◽  
Optimization Approach ◽  
Optimization Strategy ◽  
Wavelength Converter ◽  
Label Switching ◽  
Link Capacity ◽  
Two Stages ◽  
Logical Topology

AbstractOptical label switching is introduced for ensuring fast data transfer, quality of service (QoS) support, and better resource management. However, the important issue is how to optimize resource usage and satisfy traffic constraints for improving network performance and design. This paper proposes a dynamic approach that optimizes the resource in terms of link capacity and FDL (fiber delay line) buffering as well as a wavelength converter. The proposed approach decreases the resources usage and guarantees QoS support for various traffic demands. The optimization strategy consists of two stages: path building and traffic management. The path building assures logical topology making using the cumulative cost of available resource and traffic requirements including unicast and multicast. The traffic management solves the resource formulation problem during the traffic transfer by guaranteeing the required loss and blocking delay. Simulation work is conducted for validating the proposed approach and evaluating its performances and effectiveness. Simulation results show that our proposal minimizes effectively the use of link capacity of lightpath and light-tree. Moreover, our approach optimizes the use of buffering capacity and wavelength converter and guarantees QoS support according to traffic requirements.

Multicast protection algorithms based on aggregated logical topology in survivable multi-domain optical networks

Optik ◽  
2012 ◽  
Vol 123 (6) ◽  
pp. 521-526 ◽  
Author(s):  
Lei Guo ◽  
Jingjing Wu ◽  
Weigang Hou ◽  
Ying Li
Keyword(s):  
Optical Networks ◽  
Logical Topology

Logical Topology Inference via CPGCN Joint Optimizing With Pedestrian Re-Id

2021 ◽  
pp. 1-13
Author(s):  
Keyang Cheng ◽  
Qing Liu ◽  
Rabia Tahir ◽  
Liangmin Wang ◽  
Maozhen Li
Keyword(s):  
Topology Inference ◽  
Logical Topology
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