• A Reliability-Aware Network Service Chain Provisioning with Delay Guarantees in NFV-Enabled Enterprise Datacenter Networks 

      Qu, Long; Assi, Chadi; Shaban, Khaled; Khabbaz, Maurice J. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      Traditionally, service-specific network functions (NFs) (e.g., Firewall, intrusion detection system, etc.) are executed by installation-and maintenance-costly hardware middleboxes that are deployed within a datacenter ...
    • Delay-Aware Flow Scheduling in Low Latency Enterprise Datacenter Networks: Modeling and Performance Analysis 

      Khabbaz, Maurice; Shaban, Khaled; Assi, Chadi ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)
      Real-time interactive application workloads (e.g., Web search, social networking, and so on) appear in the form of a large number of mini requests and responses flowing over the datacenters' networks. They end up being ...
    • Delay-Aware Scheduling and Resource Optimization with Network Function Virtualization 

      Qu, Long; Assi, Chadi; Shaban, Khaled ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      To accelerate the implementation of network functions/middle boxes and reduce the deployment cost, recently, the concept of network function virtualization (NFV) has emerged and become a topic of much interest attracting ...
    • Network function virtualization scheduling with transmission delay optimization 

      Qu, Long; Assi, Chadi; Shaban, Khaled ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      To accelerate the implementation of network functions/middle boxes and reduce the deployment cost, recently the concept of Network Function Virtualization (NFV) has emerged and became a topic of much interest attracting ...
    • 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 ...
    • Prioritizing deadline-constrained data flows in cloud datacenter networks 

      Khabbaz, Maurice; Shaban, Khaled; Assi, Chadi; Qu, Long ( Association for Computing Machinery , 2016 , Conference Paper)
      Real-time interactive application workloads (e.g. web search, social networking, etc.) are composed of a remarkably large number of mini request partitions that require stringent delayminimal aggregation of responses and ...
    • Reliability-aware service provisioning in NFV-enabled enterprise datacenter networks 

      Qu, Long; Assi, Chadi; Shaban, Khaled; Khabbaz, Maurice ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)
      Network Function Visualization (NFV) enables the complete decoupling of Network Functions (NFs) (e.g., firewall, intrusion detection, routing, etc.) from physical middleboxes used to implement service-specific and strictly ...
    • 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 ...
    • 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 ...