… In this paper, the state of the art of controller placement problem are surveyed from the …
the overview of software-defined networking and controller placement problem. Then we …

… In this section, we classify ongoing research efforts on the controller placement problem. …
controller placement problem is presented first. For an SDN-enabled network, the main network …

… In this section, we present the objectives used in the formulation of the controller placement
problem. The SDN control plane, although logically centralized, is typically comprised of …

… Software defined networking emerges as a promising paradigm shift that decouples the …
-based CPP (“controller placement for improving resilience of software defined networks”) is …

… the controller placement problem across six aspects: target environment and medium, controller
capacity, traffic characteristics, reliability of network … on controller placement approaches …

… Here, we provide an overview of the basic components of a software-defined networking
system, their functions, operations, and the process of communication between these …

… We investigate and analyze the controller placement techniques for multi-controller scalability
in Table 1. We compare different techniques from the aspects of authors, mode, objective, …

… This section discusses the placement problem of multiple controllers. Firstly, three single …
placement of SDN multiple controller, including propagation latency, reliability and controller …

… in this problem which can pave the way for future work in CPP optimization. In … review
article, after reviewing the controller placements problem in SDN-based networks, we review …

… aspect especially in the software-defined networking perspective and the SDWSN … controller
placement. Moreover, studies have suggested that a practical controller placement problem (…