Wireless transmission requires a circuitry to generate GHz range signal. Spin transfer torque devices are one of the promising candidates for generating stable signal in the GHz range through collective precession of the local spins in one of the ferromagnetic layer, known as free layer. Another ferromagnetic layer, fixed layer, acts as a medium to…
Tags: OMNeT++ Network
Implementation of fault tolerant control for modular multilevel converter using EtherCAT communication
Modular Multilevel Converter (MMC) is very promising technology this days. It offers fault tolerant capabilities and ensures high efficiency with low output voltage harmonic content which results in need for smaller filter size. A disadvantage of the system is that the control becomes more cumbersome due to the high number of the employed submodules. A…
Bond graph model-based for fault tolerance level assessment of a wireless communication link in a system of systems concept
The main focus of this paper is on graphical modeling of wireless link of a System of Systems (SoS) for the purpose of Fault Tolerance Level Assessment. Having used hypergraphs previously for modeling the structural organization of SoS, it’s now important to introduce another graphical tool for modeling the wireless communication channel (WCL) between component systems of…
EXR: Greening Data Center Network with Software Defined Exclusive Routing
The explosive expansion of data center sizes aggravates the power consumption and carbon footprint, which has restricted the sustainable growth of cloud services and seriously troubled data center operators. In recent years, plenty of advanced data center network architectures have been proposed. They usually employ richly-connected topologies and multi-path routing to provide high networkcapacity. Unfortunately, they also undergo…
Software defined network for multi-tenancy resource sharing in backhaul networks
This paper introduces a Software Defined Network (SDN) architecture for 5G dense multi-infrastructure provider deployed wireless backhaul networks. The architecture contains a two-tier controller in a hierarchical setup aiming to offload some of the control functionalities from the central controller to a collection of logically distributed dynamically configured local controllers in order to balance the tradeoff between scalability and system…
Policy authoring for software-defined networking management
Software-Defined Networking (SDN) permits centralizing part of the decision-logic in controller devices. Thus, controllers can have an overall view of the network, assisting network programmers to configurenetwork-wide services. Despite this, the behavior of network devices and their configurations are often written for specific situations directly in the controller. As an alternative, techniques such as Policy-Based Network Management (PBNM) can be used by business-level operators…
Toward terabit autonomic optical networks based on a software defined adaptive/cognitive approach [invited]
Terabit elastic optical networking (EON) is foreseen as a viable solution to extend the lifetime of anetwork exploiting the available bandwidth in previously deployed optical fibers. EON is based on bandwidth-variable transponders capable of supporting multiple bit rates and/ or modulation formats according to traffic requirements and node architectures that route arbitrary channel band-widths. Thus, EON increases the…
Programmable hardware in software defined networking
Summary form only given. Software presents performance difficulties if it is the sole means of allowing programmability in high-speed optical SDN and NFV. Programmable hardware offers an ideal companion for implementing flexible SDN data planes and accelerating NFV functions.
A design of 10 Gigabit Capable Passive Optical Network(XG-PON1) architecture based on Software Defined Network(SDN)
A SDN-based XG-PON1 Network Architecture is proposed.A XG-PON1 includes many management technologies that is ONU Management, DHCP Server Management, AAA Server Management, OLT Switch Control, PIU(PON Interface Unit) Control, and OMCI.We proposed a SDN-based XG-PON1 Architecture to manage these functions.
Software defined networking and virtualization for broadband satellite networks
Satellite networks have traditionally been considered for specific purposes. Recently, new satellite technologies have been pushed to the market enabling high-performance satellite access networks. On the other hand, network architectures are taking advantage of emerging technologies such as software-defined networking (SDN), network virtualization and network functions virtualization (NFV). Therefore, benefiting communications services over satellite networks from these new technologies at first, and their seamless integration with terrestrial networks at second, are…