A Tutorial on Optical Networks
Advanced Lectures on Networking, NETWORKING 2002 [This book presents the revised version of seven tutorials given at the NETWORKING 2002 Conference in Pisa, Italy in May 2002]
Path selection methods with multiple constraints in service-guaranteed WDM networks
IEEE/ACM Transactions on Networking (TON)
Dynamic scheduling of survivable connections with delay tolerance in WDM networks
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
Provisioning of deadline-driven requests with flexible transmission rates in WDM mesh networks
IEEE/ACM Transactions on Networking (TON)
Deadline-based connection setup in wavelength-routed WDM networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Service level agreement and provisioning in optical networks
IEEE Communications Magazine
Optimal design and evaluation of survivable WDM transport networks
IEEE Journal on Selected Areas in Communications
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The need to support the diverse quality-of-service (QoS) requirements of the ever-emerging Internet applications is a major challenge for optical network operators. This paper tackles such a challenge through the definition of a QoS-aware optical connection setup management scheme. The proposed scheme utilizes the Earliest Deadline First (EDF) queueing discipline to schedule the setup of optical connections that cannot be established due to lack of optical resources. The EDF-based approach aims at minimizing blocking probability while realizing QoS differentiation. Blocking probability reduction is realized through the insertion of blocked connection requests into a queue giving them thus a second chance with respect to network access. QoS differentiation on the other hand is achieved as follows. The blocked connection requests are ranked in the EDF queue according to their connection setup requirements, which are viewed as deadlines during connection setup. In this way, pending connection requests having shorter setup time requirements are guaranteed to experience better QoS compared to the ones having longer setup time requirements. The performance of the EDF-based strategy is analyzed through extensive simulations in the context of both opaque and transparent NSFNET network topologies. The reported results show that the proposed strategy yields remarkable reduction in terms of blocking probability while effecting QoS differentiation.