The controller placement problem (CPP) is one of the key challenges of software defined
networks (SDNs) to increase performance. Given the locations of n switches, CPP consists …

The controller placement problem (CPP) is one of the key challenges of software defined
networks to increase performance. Given the locations of switches, CPP consists of …

Recently, 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 …

One major research challenge for Software-Defined Networking is to properly deploy and
efficiently utilize multiple controllers to improve resource utilization and maintain high …

Software defined networking emerges as a promising paradigm shift that decouples the
control plane from the data plane. It has the ability to centrally monitor and control the …

In 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 …

Recently, software defined networking (SDN) is a promising paradigm shift that decouples
the control plane from the data plane. It can centrally monitor and control the network …

A 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 …

Controller 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 …

Software Defined Networking (SDN), the novel paradigm of decoupling the control logic from
packet forwarding devices, has been drawing considerable attention from both academia …