Results 241 to 250 of about 110,412 (281)
Some of the next articles are maybe not open access.
On the Capacitated Controller Placement Problem in Software Defined Networks
IEEE Communications Letters, 2014Controller placement is a key problem in software defined networks (SDNs). Previously, the solution to this problem only focused on propagation latency but ignored the load of controllers, which is a critical factor in real networks. In this letter, we define a capacitated controller placement problem (CCPP), taking into consideration the load of ...
Jun Bi, Yuliang Li
exaly +2 more sources
The Controller Placement Problem in Software Defined Networking: A Survey
IEEE Network, 2017Recently, a variety of solutions have been proposed to tackle the controller placement problem in SDN. The objectives include minimizing the latency between controllers and their associated switches, enhancing reliability and resilience of the network, and minimizing deployment cost and energy consumption.
Jun Huang
exaly +2 more sources
Optimal Model for the Controller Placement Problem in Software Defined Networks
IEEE Communications Letters, 2015In this letter, we propose a mathematical model for the controller placement problem in Software Defined Networks (SDN). More precisely, given a set of switches that must be managed by the controller(s), the model simultaneously determines the optimal number, location, and type of controller(s) as well as the interconnections between all the network ...
Marc St-Hilaire
exaly +2 more sources
The Energy-Aware Controller Placement Problem in Software Defined Networks
IEEE Communications Letters, 2017Controller placement is an important problem in software defined networks. Previously, some works addressed the problem by taking into account primary factors, such as propagation delay of control paths and capacity of controllers. Here, the problem is addressed from a novel standpoint of energy consumption, which is modeled as a binary integer program
Ying Hu, Tao Luo, Norman Beaulieu
exaly +2 more sources
Controller placement problem in software‐defined networking: A survey
Networks, 2021AbstractA distinctive feature of software‐defined networking (SDN) is a logically centralized control plane realized using multiple physical controllers. The placement of the controllers, the so‐called controller placement problem (CPP), is a crucial design issue.
Abha Kumari, Ashok Singh Sairam
openaire +1 more source
Wireless controller placement problem
2018 15th IEEE Annual Consumer Communications & Networking Conference (CCNC), 2018Software Defined Networking decouples the control and data planes. The response time and quality of service of the controllers is a key aspect in implementing the Software Defined Networking paradigm. A wireless Software Defined Networking control plane is even more challenging. Many radio communication problems arise in modeling the wireless east west
Amit Dvir +2 more
openaire +1 more source
Expansion Model for the Controller Placement Problem in Software Defined Networks
IEEE Communications Letters, 2017Marc St-Hilaire
exaly +2 more sources
The SDN controller placement problem for WAN
2014 IEEE/CIC International Conference on Communications in China (ICCC), 2014Large networks are always partitioned into several small networks when deploying software defined networking (SDN). The network partitioning with SDN control planes open many unanswered questions such as latency, reliability, and load balancing. This paper opens the investigation by focusing on two specific questions: given a wide-area network topology,
Peng Xiao 0007 +4 more
openaire +1 more source
On Using SDN in 5G: The Controller Placement Problem
2016 IEEE Global Communications Conference (GLOBECOM), 2016To integrate Software Defined Networking (SDN) in the envisioned 5G system, a separation of the control and user data plane functions of the Evolved Packet Core (EPC) is required. This separation will impact mainly the functions available at the Serving GateWay (SGW) and Packet data GateWay (PGW) elements, and will result in two new entities; i.e.
Ksentini, Adlen +3 more
openaire +1 more source
Performance of Metaheuristic Algorithms for the Controller Placement Problem in SDN
2020 IEEE 25th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2020Software Defined Networks (SDN) have the potential to improve network resource utilization through its logically centralized architecture. However, the growing interest on its large-scale deployment has raised issues regarding how to better place one or more (physical) SDN controllers under conflicting network performance metrics, which naturally leads
Ana Carolina O. Christofaro +2 more
openaire +1 more source