Design of contention resolution over backup path in path computation element based wavelength-switched optical networks

2010 ◽  
Vol 8 (4) ◽  
pp. 372-376
Author(s):  
侯连兴 Lianxing Hou ◽  
陆月明 Yueming Lu ◽  
王俊华 Junhua Wang ◽  
纪越峰 Yuefeng Ji
Keyword(s):  
Optical Networks ◽  
Contention Resolution ◽  
Backup Path ◽  
Path Computation ◽  
Path Computation Element

Survey on Path Computation Element extensions for Spectrum Switched Optical Networks

2013 ◽  
Author(s):  
Joana Socrates Dantas ◽  
Davide Careglio ◽  
Regina Melo Silveira ◽  
Wilson Vicente Ruggiero ◽  
Josep Sole-Pareta
Keyword(s):  
Optical Networks ◽  
Path Computation ◽  
Path Computation Element

The Path Computation Element (PCE)

2015 ◽  
pp. 237-266 ◽  
Author(s):  
Francesco Paolucci ◽  
Filippo Cugini
Keyword(s):  
Optical Networks ◽  
Task Force ◽  
Network Resource ◽  
Internet Applications ◽  
Path Computation ◽  
Adequate Quality ◽  
Implementation Aspects ◽  
Effective Network ◽  
Path Computation Element

The Internet Engineering Task Force (IETF) has promoted the Path Computation Element (PCE) architecture to provide effective network resource utilization while guaranteeing advanced Internet applications with adequate quality of service (QoS). The PCE is a dedicated network entity devoted to path computation. This chapter presents the state-of-the-art of the PCE architecture for different networking scenarios including single-domain networks, optical networks, and multi-domain/layer networks. Relevant architectural and implementation aspects are analyzed and discussed, highlighting related benefits, limitations and open issues. Recent progresses and future directions are also addressed, including the PCE evolution to operate in the context of software defined networking.

Extending path computation element for lightpath restoration in wavelength-switched optical networks

2010 ◽  
Vol 8 (2) ◽  
pp. 142-145 ◽  
Author(s):  
侯连兴 Lianxing Hou ◽  
陆月明 Yueming Lu ◽  
王俊华 Junhua Wang ◽  
纪越峰 Yuefeng Ji ◽  
华一强 Yiqiang Hua
Keyword(s):  
Optical Networks ◽  
Path Computation ◽  
Path Computation Element

Cloud-integrated wireless-optical broadband access network with survivability

2020 ◽  
Vol 10 ◽  
Author(s):  
Sangita Solanki ◽  
Raksha Upadhyay ◽  
Uma Rathore Bhatt
Keyword(s):  
Access Network ◽  
Access Networks ◽  
Manhattan Distance ◽  
Broadband Access ◽  
Optical Access Networks ◽  
Component Level ◽  
Backup Path ◽  
Wireless Router ◽  
Path Computation ◽  
Broadband Access Network

Cloud-integrated wireless optical broadband (CIW) access networks inheriting advantages of cloud computing, wireless and optical access networks have a broad prospect in the future. Due to failure of components like OLT level, ONU level, link or path failure and cloud component level in CIW, survivability is becoming one of the important issues. In this paper, we have presented cloud-integrated wireless-optical broadband access network with survivability using integer linear programming (ILP) model, to minimize the number of cloud components while providing maximum backup paths. Hence, we have proposed protection through cloud-integrated wireless router to available ONUs (PCIWRAO). So, evaluated the backup path computation. We have considered ONU level failure in which the affected traffic is transferred through wireless routers and cloud component to the available ONUs using Manhattan distance algorithm. Simulation results show different configurations for different number of routers and cloud components illustrating available backup path when ONU fails.

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