Browsing Faculty Contributions by Author "Ayoubi, Sara"
Now showing items 1-7 of 7
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MINTED: Multicast virtual network embedding in cloud data centers with delay constraints
Ayoubi, Sara; Assi, Chadi; Shaban, Khaled; Narayanan, Lata ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)Network virtualization is regarded as the pillar of cloud computing, enabling the multi-tenancy concept where multiple Virtual Networks (VNs) can cohabit the same substrate network. With network virtualization, the problem ... -
Optimal Polynomial Time Algorithm for Restoring Multicast Cloud Services
Ayoubi, Sara; Assi, Chadi; Narayanan, Lata; Shaban, Khaled ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)The failure-prone nature of data center networks has evoked countless contributions to develop proactive and reactive countermeasures. Yet, most of these techniques were developed with unicast services in mind. When in ... -
Restoration methods for cloud multicast virtual networks
Ayoubi, Sara; Assi, Chadi; Chen, Yiheng; Khalifa, Tarek; Shaban, Khaled Bashir ( Academic Press , 2017 , Article)Providing reliability guarantees for services hosted in cloud data center networks is a well studied problem that received much attention from the literature in recent years. Yet, the existing literature failed to account ... -
Surviving link failures in multicast VN embedded applications
Ghaleb, Abdulaziz M.; Khalifa, Tarek; Ayoubi, Sara; Shaban, Khaled Bashir ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Virtual network embedding (VNE) is defined as the allocation of network resources to multiple virtual networks (VNs) and is recognized to be a challenging task to perform efficiently. Virtual network survivability is a new ... -
Surviving Multiple Failures in Multicast Virtual Networks With Virtual Machines Migration
Ghaleb, Abdulaziz M.; Khalifa, Tarek; Ayoubi, Sara; Shaban, Khaled Bashir; Assi, Chadi ( IEEE , 2016 , Article)This paper deals with the multiple link/node substrate failures that impact a multicast virtual network (MVN) in which link recovery is not feasible and node migration is mandatory. A novel restoration approach is introduced ... -
Towards scalable traffic management in cloud data centers
Assi, Chadi; Ayoubi, Sara; Sebbah, Samir; Shaban, Khaled ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Article)Cloud Computing is becoming a mainstream paradigm, as organizations, large and small, begin to harness its benefits. This novel technology brings new challenges, mostly in the protocols that govern its underlying infrastructure. ... -
Traffic engineering in cloud data centers: A column generation approach
Ayoubi, Sara; Sebbah, Samir; Shaban, Khaled; Assi, Chadi ( IEEE , 2014 , Conference Paper)While many have advocated for the use of Virtual Local Area Networks (VLANs) as a way to provide scalable traffic management, finding the optimal traffic split (mapping) among VLANs to achieve load balancing has turned out ...