2015 ns3 projects Archives

A Non-Stationary MIMO Vehicle-to-Vehicle Channel Model Derived from the Geometrical Street Model

In this paper, we derive a non-stationary multiple-input multiple-output (MIMO) vehicle-to-vehicle (V2V) channel model from the geometrical street model. Single-bounce scattering is assumed for both fixed and moving scatterers. The high mobility of the transmitter, the receiver, and the surrounding…

December 19, 2015 · by NS3 Tutorial ·

SERVUS: Reliable low-cost and disconnection-aware broadcasting in VANETs

The future of Vehicular Ad-Hoc Networks (VANET) will rely mainly on the support of efficient information dissemination protocols, whether we talk about safety applications that warn the driver of an imminent collision, a simple update on traffic conditions, or road-side advertisements. One of the…

December 19, 2015 · by NS3 Tutorial ·

Geocast routing: Recent advances and future challenges in vehicular adhoc networks

Recently, geocast routing (GR) has been extensively investigated for reliable and efficient dissemination of information due to increasing number of intelligent transport system (ITS) applications favoring geocasting. In this paper, a qualitative survey of recent protocols of GR and some…

December 19, 2015 · by NS3 Tutorial ·

A new information model towards context-aware service provisioning in the Internet-of-Things

Context information and context-awareness are some of the drivers for the Internet-of-Things paradigm, whereas a well-stated and defined model is the key element of any context information system. An appropriate context model ensures that the information gathered by a context…

December 19, 2015 · by NS3 Tutorial ·

Sparse Uncorrelated Linear Discriminant Analysis for Undersampled Problems

Linear discriminant analysis (LDA) as a well-known supervised dimensionality reduction method has been widely applied in many fields. However, the lack of sparsity in the LDA solution makes interpretation of the results challenging. In this paper, we propose a new…

December 19, 2015 · by NS3 Tutorial ·

Topology-Based Clustering Using Polar Self-Organizing Map

Cluster analysis of unlabeled data sets has been recognized as a key research topic in varieties of fields. In many practical cases, no a priori knowledge is specified, for example, the number of clusters is unknown. In this paper, grid…

December 19, 2015 · by NS3 Tutorial ·

Rayleigh based bilateral filtering for flash and no-flash image pairs

Digital photography provides a quick and facile means to capture a pair of images i.e. flash and no-flash image. Digital images are often superimposed by noises at the acquisition stage depending upon the availability of lighting. Image denoising is a…

December 19, 2015 · by NS3 Tutorial ·

Chalcogenide fibers for infrared photonics: Recent developments

Compared to oxide based glasses, vitreous materials composed of chalcogen elements (S, Se, Te) show large transparency windows in the infrared. Indeed, chalcogenide glasses can be transparent from the visible up to 12 – 15 µm, depending on their compositions.…

December 19, 2015 · by NS3 Tutorial ·

Microwave photonic notch filter with a flat passband and large free spectral range frequency response

A new multiple-tap microwave photonic signal processing structure that can realize a flat passband and large free spectral range notch filter response is presented. It is based on a polarization modulator followed by a length of polarization maintaining fiber and…

December 19, 2015 · by NS3 Tutorial ·

Integrated microwave photonics phase shifter using on-chip stimulated Brillouin scattering

In this paper we consider two new topologies of a tunable microwave photonic phase shifter using stimulated Brillouin scattering. In the first topology, independent phase and amplitude control of an optical carrier was achieved by controlling two SBS pumps in…

December 19, 2015 · by NS3 Tutorial ·