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The Role of Admission Control in Assuring Multiple Services Quality

Solange Lima, Paulo Carvalho, Vasco Freitas
2006 2006 15th International Conference on Computing  
Considering that network overprovisioning by itself is not always an attainable and everlasting solution, Admission Control (AC) mechanisms are recommended to keep network load controlled and assure the  ...  In this debate, particular emphasis is given to an enhanced monitoringbased AC proposal for assuring multiple service levels in multiclass networks.  ...  Due to the large number of TCP flow arrivals and their eventual small duration, controlling individual flows using explicit signaling and reservations is impracticable, therefore, in general, a measurement-based  ... 
doi:10.1109/cic.2006.70 fatcat:ew6b5cvgo5eshatkyijwj3q3k4

Fuzzy Load Balancing for IEEE 802.11 Wireless Networks

Mario Collotta, Gianfranco Scatà
2014 Information Engineering Research Institute procedia  
This paper proposes a load balancing technique for IEEE 802.11 networks based on fuzzy logic in order to ensure the achievement of typical constraints that characterize a wireless scenario.  ...  Wireless networks (WNs) are today used in many areas thanks to several benefits deriving from the ease of installation and maintenance and the high scalability.  ...  Load balancing techniques can be classified into two categories: centralized and distributed. The first one is characterized by policies implemented within a single network device.  ... 
doi:10.1016/j.ieri.2014.08.010 fatcat:7suqxuffqzertemlzuwmek6rmi

On Dynamic Load Distribution Algorithms for Multi-AP WLAN under Diverse Conditions

Eng Hwee Ong, Jamil Y. Khan, Kaushik Mahata
2010 2010 IEEE Wireless Communication and Networking Conference  
However, it is known that wireless network conditions in general are diverse owing to both traffic and wireless channel variations.  ...  This raises the importance of exploiting diversity across a multiple access points (multi-AP) WLAN, which requires an advanced network control mechanism to effectuate uniform load distribution, so that  ...  The salient advantage of measurement-based soft admission control is that it relies on historic variations of network conditions captured through measurements to mitigate the difficulty in characterizing  ... 
doi:10.1109/wcnc.2010.5506414 dblp:conf/wcnc/OngKM10 fatcat:q5ievwv3gnhwfgp2piouar5hme

Characterizing information leaders in Twitter during COVID-19 Pandemic [article]

David Pastor-Escuredo, Carlota Tarazona
2022 arXiv   pre-print
We propose the foundation of a framework to characterize leaders in Twitter based on the analysis of the social graph derived from the activity in this social network.  ...  Centrality metrics are used to characterize the topology of the network and the nodes as potential leaders. These metrics are compared with the user popularity metrics managed by Twitter.  ...  Current flow Closeness (cfcloseness) Radial and length-based centrality based on current flow model using the inverse flow property.  ... 
arXiv:2005.07266v3 fatcat:qqdwpvfurnb7fjmnsd4s7uy4l4

Experimental Study of Measurement-based Admission Control for Wireless Mesh Networks

Dhruv Gupta, Daniel Wu, Chao C. Chen, Chen-Nee Chuah, Prasant Mohapatra, Sanjay Rungta
2007 2007 IEEE Internatonal Conference on Mobile Adhoc and Sensor Systems  
In this paper, we develop light-weight monitoring modules to measure current network/traffic conditions and estimate end-to-end path delay, which is then incorporated in our admission control decision.  ...  Several admission control schemes have been presented for wireless LANs and wireless ad-hoc networks.  ...  Centralized Admission Control Algorithm The central controller receives periodic measurement data from various nodes in the network.  ... 
doi:10.1109/mobhoc.2007.4428642 dblp:conf/mass/GuptaWCCMR07 fatcat:nev2qxpwf5fv7d7wabo3gn2b5a

High performance COTS-IoT prototype for dynamic power control in an electrical grid

J.A. Lopez-Leyva, M. Ponce-Camacho, A. Valle, A. Talamantes-Alvarez
2019 Journal of Electrical Systems  
The proposed system was connected to a real electrical grid (emulated scenario) and a central server during 168 hours in order to establish a maximum dynamical threshold and generate control commands for  ...  In particular, the design, electrical characterization and real implementation considering the use of a portable universal test equipment (PTE-100-C) are showed.  ...  In fact, measurement periods of 5 minutes and 1 hours are preliminary conditions because an ideal dynamic power control requires a reduced period as possible (e.g. 1 minute) In particular, a central server  ... 
doaj:f1b7ea637f134956a9fd215df3eab876 fatcat:wzqcc4yxfvepxj4ijuxopm26xm

Admission Control in Multiservice IP Networks: Architectural Issues and Trends

S.R. Lima, P. Carvalho, V. Freitas
2007 IEEE Communications Magazine  
In this context, this article discusses the role of AC in multiservice IP networks and surveys current and representative AC approaches.  ...  We identify important design aspects that contribute to the successful deployment of flexible and scalable AC solutions in multiservice networks.  ...  In more detail, centralized and distributed AC oriented to flow, hybrid or class-based QoS models, as well as active/passive measurement-based AC proposals are discussed. A.  ... 
doi:10.1109/mcom.2007.343620 fatcat:temxm4tj4feizluz4dctdayl2m

Randomized methods to characterize large-scale vortical flow network [article]

Zhe Bai, N. Benjamin Erichson, Muralikrishnan Gopalakrishnan Meena, Kunihiko Taira, Steven L. Brunton
2019 arXiv   pre-print
We demonstrate the effective use of randomized methods for linear algebra to perform network-based analysis of complex vortical flows.  ...  In this work, we propose efficient methods to approximate network quantities, such as the leading eigendecomposition of the adjacency matrix, using randomized methods.  ...  The irrotational regions in both flows have the lowest centrality measure.  ... 
arXiv:1909.00535v1 fatcat:ictu4yegjfe7pircrtiqg5aj6y

Comparison Between Communication Infrastructures of Centralized and Decentralized Wide Area Measurement Systems

Mohammad Shahraeini, Mohammad Hossein Javidi, Mohammad Sadegh Ghazizadeh
2011 IEEE Transactions on Smart Grid  
centralized and decentralized control strategies in power grids.  ...  Communication infrastructures are designed for two different control strategies; centralized and decentralized (multi-area) HSE. These strategies have been investigated in IEEE 118-bus test network.  ...  The control strategies are characterized by information flow among data resources, control center(s), and controllable devices [2] .  ... 
doi:10.1109/tsg.2010.2091431 fatcat:x3pkf6lnfjdqrgktgrr4lmvz44

Implementation and Evaluation of Measurement-Based Admission Control Schemes Within a Converged Networks QoS Management Framework [article]

Suleiman Y. Yerima
2013 arXiv   pre-print
Within any QoS control framework, an effective admission control scheme is essential for maintaining the QoS of flows present in the network.  ...  Measurement based admission control (MBAC) and parameter based admission control (PBAC) are two commonly used approaches.  ...  In [16] , an online measurement-based admission control scheme is presented.  ... 
arXiv:1311.1435v1 fatcat:hmroy2l5a5er3ohirj7eewb34m

Strategic interactions in DRAM and RISC technology: A network approach

Geert Duysters, Wim Vanhaverbeke
1996 Scandinavian Journal of Management  
Network analysis provides such measures, which can then be used as feedback in the industry analysis.  ...  can be measured.  ...  also a centrality measure based upon maximal flow betweenness (Cp): the information flow between two points is not the direct flow between adjacent points, but the overall flow between pairs of points  ... 
doi:10.1016/s0956-5221(96)00001-2 fatcat:sz3gyjuy6ffc5m3vudlgulthwq

A programmable MAC framework for utility-based adaptive quality of service support

G. Bianchi, A.T. Campbell
2000 IEEE Journal on Selected Areas in Communications  
We describe the design and evaluation of a programmable medium access control framework which is based on a hybrid centralized/distributed data link controller.  ...  Index Terms-Medium access control, programmable networks, quality of service.  ...  Liao for his contribution to the utility-fair algorithm and for the many fruitful discussions on the application of utility-based algorithms in networks.  ... 
doi:10.1109/49.824807 fatcat:2leuzsmlk5ck3mx4mvq7zhntk4

Expedited Forwarding Delay Budget Through a Novel Call Admission Control [chapter]

Hamada Alshaer, Eric Horlait
2004 Lecture Notes in Computer Science  
In this network, the back ground (BG or BE) flows are characterized by Poisson process, however the Expedited Forwarding (EF) flows are generated by Exponential and Pareto ON-OFF sources.  ...  Call admission control is a principal component for QoS delivery in IP networks. It determines the extent to which network resources are utilized.  ...  In order to cope with the scalability, most relevant studies adopt distributed admission control schemes, which are further categorized into model-based and measurement-based approaches.  ... 
doi:10.1007/978-3-540-30197-4_6 fatcat:jgiehppjmjgwtppfczaub2fbk4

Centralized Management for Efficient Control of Network Devices

Complexity of network device management is based on the size and design of network.  ...  In this paper we described the methods and technologies used for management and controlling of network devices. Network infrastructure management is big task for any organization.  ...  Central control over the network provides lot of benefits.  ... 
doi:10.35940/ijitee.b1245.1292s419 fatcat:45lfhvhpwjdy3jemdhhiih6sdu

The Global Banking Network in the Aftermath of the Crisis: Is There Evidence of De-globalization?

Eugenio Cerutti, Haonan Zhou
2017 IMF Working Papers  
Measures of Node Importance: Structural significance of nodes in a network can be characterized by node-level measures of importance, known as centrality-like measures.  ...  We provide an in-depth discussion of network measure choice based on the structural context of a core-periphery, asymmetric and unbalanced network structure and in the economic context of characterizing  ... 
doi:10.5089/9781484324868.001 fatcat:aommpqmw25dshnnhagolujz6xe
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