Metamake—tools for personal project making in network heterogeneous environment

2003 ◽  
Vol 502 (2-3) ◽  
pp. 418-419
Author(s):  
Eugene Huhlaev
Keyword(s):  
Heterogeneous Environment ◽  
Personal Project

Network Selection in Wireless Heterogeneous Environment Based on Available Bandwidth Estimation

2019 ◽  
Vol 12 ◽  
Author(s):  
Kiran Ahuja ◽  
Brahmjit Singh ◽  
Rajesh Khanna
Keyword(s):  
Real Time ◽  
Estimation Error ◽  
Network Selection ◽  
Bandwidth Estimation ◽  
Heterogeneous Environment ◽  
Bootstrap Approximation ◽  
Available Bandwidth ◽  
Internet Connection ◽  
Available Bandwidth Estimation ◽  
Selection Of

Background: With the availability of multiple options in wireless network simultaneously, Always Best Connected (ABC) requires dynamic selection of the best network and access technologies. Objective: In this paper, a novel dynamic access network selection algorithm based on the real time is proposed. The available bandwidth (ABW) of each network is required to be estimated to solve the network selection problem. Method: Proposed algorithm estimates available bandwidth by taking averages, peaks, low points and bootstrap approximation for network selection. It monitors real-time internet connection and resolves the selection issue in internet connection. The proposed algorithm is capable of adapting to prevailing network conditions in heterogeneous environment of 2G, 3G and WLAN networks without user intervention. It is implemented in temporal and spatial domains to check its robustness. Estimation error, overhead, estimation time with the varying size of traffic and reliability are used as the performance metrics. Results: Through numerical results, it is shown that the proposed algorithm’s ABW estimation based on bootstrap approximation gives improved performance in terms of estimation error (less than 20%), overhead (varies from 0.03% to 83%) and reliability (approx. 99%) with respect to existing techniques. Conclusion: Our proposed methodology of network selection criterion estimates the available bandwidth by taking averages, peaks, and low points and bootstrap approximation method (standard deviation) for the selection of network in the wireless heterogeneous environment. It monitors real-time internet connection and resolves internet connections selection issue. All the real-time usage and test results demonstrate the productivity and adequacy of available bandwidth estimation with bootstrap approximation as a practical solution for consistent correspondence among heterogeneous wireless networks by precise network selection for multimedia services.

scholarly journals Writing and exhibiting a ‘live’ and convivial sociology: Portraiture and women’s lived experiences of a French suburb

2021 ◽  
pp. 003802612110097
Author(s):  
Magali Peyrefitte
Keyword(s):  
Research Design ◽  
Knowledge Production ◽  
Lived Experiences ◽  
Sociological Imagination ◽  
Ethnographic Study ◽  
Sociological Analysis ◽  
Middle Income ◽  
Personal Project ◽  
Academic Communication ◽  
Opening Up

Embracing the manifesto for a ‘live’ sociology, I included portraiture into the research design of an ethnographic study into women’s lived experiences of French suburbia and organised an exhibition entitled Habitantes d’Hier and d’Aujourd’hui: exposition sociologique et photographique. This was a personal project in the neighbourhood of my youth and was motivated by the intention to shine some light on the invisible stories of women living in lower-middle and middle-income suburbs in France. In this article, I reflect on the use of portraiture for the possibility it offers in capturing the ethnographic encounter as well as in giving saliency and offering a visual representation of the sociological analysis. I also discuss the exhibition of these portraits as a moment of conviviality grounded in the endeavour of writing differently from hegemonic modes of academic communication and dissemination allowing for a sharing and sharpening of the sociological imagination. It represents an opportunity to think beyond some of the more neoliberal imperatives that govern academia today and shape our sociological craft. I argue for the value of creating a moment of conviviality, that is a space challenging modes of dissemination, engagement and even impact to some extent, as well as modes of knowledge production: broadly opening up more possibilities for a truly public sociology to continue to exist.

scholarly journals Direction-dependent turning leads to anisotropic diffusion and persistence

2021 ◽  
pp. 1-37
Author(s):  
N. LOY ◽  
T. HILLEN ◽  
K. J. PAINTER
Keyword(s):  
Anisotropic Diffusion ◽  
Cell Movement ◽  
Orientation Dependence ◽  
Transport Equations ◽  
Heterogeneous Environment ◽  
Enhanced Diffusion ◽  
Mesoscopic Level

Cells and organisms follow aligned structures in their environment, a process that can generate persistent migration paths. Kinetic transport equations are a popular modelling tool for describing biological movements at the mesoscopic level, yet their formulations usually assume a constant turning rate. Here we relax this simplification, extending to include a turning rate that varies according to the anisotropy of a heterogeneous environment. We extend known methods of parabolic and hyperbolic scaling and apply the results to cell movement on micropatterned domains. We show that inclusion of orientation dependence in the turning rate can lead to persistence of motion in an otherwise fully symmetric environment and generate enhanced diffusion in structured domains.

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