Fluid models provide a tractable and useful approach in approximating multiclass processing networks. However, they ignore the inherent stochasticity in arrival and service processes. To address this shortcoming, we develop a robust fluid approach to the control of processing networks. We provide insights into the mathematical structure, modeling power, tractability, and performance of the resulting…
Tags: OMNeT++ SDN
There is a Will, There is a Way: A New Mechanism for Traffic Control Based on VTL and VANET
Traffic light is regarded as one of the most effective ways to alleviate traffic congestion and carbon emission problems. However, traditional traffic light cannot meet the challenges in traffic regulation posed by the fast growing number of vehicles and increasing complexity of road conditions. In this paper, we propose a dynamic traffic regulation method based…
BYOC: Bring Your Own Control a new concept to monetize SDN’s openness
Software Defined Networking (SDN) is supposed to bring flexibility, dynamicity and automation to today’s network through a logically centralized network controller. We argue that reaching SDN’s full capacities requires however the development of standardized programming capabilities on its top. In this paper we introduce “Bring Your Own Control” (BYOC) as a new concept providing a…
SDN orchestration of OpenFlow and GMPLS flexi-grid networks with a stateful hierarchical PCE [invited]
New and emerging use cases, such as the interconnection of geographically remote data centers, are drawing attention to the need for provisioning end-to-end connectivity services spanning multiple and heterogeneous network domains. This heterogeneity is due not only to the data transmission and switching technology (the so-called data plane) but also to the deployed control plane,…
Fault tolerance in Dynamic Cluster-Based Wireless Sensor Networks
Researches on Wireless Sensor Networks (WSNs) have been increased tremendously in the recent years. Cluster-based Wireless Sensor Network out performs flat network in terms of data routing, energy dissipation, data load balancing, etc. A self organized cluster-based sensor network that has the cluster management mechanisms for new nodes joining and existing nodes leaving, is defined…
Global Exponential Stability for Discrete-Time Networks With Applications to Traffic Networks
This paper provides sufficient conditions for global asymptotic stability and global exponential stability, which can be applied to nonlinear, large-scale, uncertain discrete-time networks. The conditions are derived by means of vector Lyapunov functions. The obtained results are applied to traffic networks for the derivation of sufficient conditions for global exponential stability of the uncongested equilibrium…
Directivity Estimations for Short Dipole Antenna Arrays Using Radial Basis Function Neural Networks
The role of directivity is very important in the operation of an array as it gives a measure of the effectiveness of the array in pointing the radiations in a specific direction. Traditional methods used for the computation of directivity are although effective but may be time consuming. Artificial neural networks (ANNs) do not require…
Multi-valued Neural Network Trained by Differential Evolution for Synthesizing Multiple-Valued Functions
We consider the problem of synthesizing multiple valued logic (MVL) functions by neural networks. A differential evolution algorithm is proposed to train the learnable multiple valued logic network. The optimum window and biasing parameters to be chosen for convergence are derived. Experiments performed on benchmark problems demonstrate the convergence and robustness of the network. Preliminary…
LED Based Indoor Visible Light Communications: State of the Art
Visible Light Communication (VLC) is an emerging eld in Optical Wireless Com- munication (OWC) which utilizes the superior modulation bandwidth of Light Emitting Diodes (LEDs) to transmit data. In modern day communication systems, the most pop- ular frequency band is Radio Frequency (RF) mainly due to little interference and good coverage. However, the rapidly dwindling RF spectrum along with…
Towards a Cybernetics-Based Communication Framework for IT Governance
Communication is a crucial part and, often, a thorny problem of organizational life. In the modern-day organization, individuals must exchange information continuously and rapidly throughout the chain of command, whether to offer evaluation, direction or control. No more is this true, then for the rapidly growing and evolving domain of IT governance. Unfortunately, communication failures between business and…