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Analysis of User Perceived QoS in Ubiquitous UMTS Environments Subject to Faults [chapter]

Andrea Bondavalli, Paolo Lollini, Leonardo Montecchi
2008 Lecture Notes in Computer Science  
This paper provides a QoS analysis of a dynamic, ubiquitous UMTS network scenario in the automotive context identified in the ongoing EC HIDENETS project.  ...  Adopting a compositional modeling approach based on Stochastic Activity Networks formalism, we analyze the Quality of Service (QoS) both from the users' perspective and from the mobile operator's one.  ...  Since the user perceived QoS level depends on the availability of network resources, base stations' faults are also considered.  ... 
doi:10.1007/978-3-540-87785-1_17 fatcat:e3zr6lswuvcbnay2r7jjoo233e

Multimedia Traffic over Wireless and Satellite Networks [chapter]

Floriano De, Mauro Tropea, Peppino Fazio
2010 Digital Video  
UMTS segments as it is possible to see in Figure 16 .  ...  The MPEG-2 transport stream (MPEG-2-TS) arises from the need to create a layer of data for a fault tolerant environment (see Figure 13 ); and precisely, because this uses small packets.  ...  In addition, research issues related to the application layer and to the content semantic, organization and research on the web have also been addressed in order to give a complete view of the problems  ... 
doi:10.5772/8023 fatcat:aet6s5dwxrga5lzbowaa3pvbei

Analysis and taxonomy of security/QoS tradeoff solutions for the future internet

Ana Nieto, Javier Lopez
2013 Security and Communication Networks  
(QoS) mechanisms in resource-constrained networks, that are relevant types of networks within the FI environment.  ...  As a result, we define a dependency-based model for the analysis of Security and QoS tradeoff, and also define a high-level integration architecture for networks in the FI setting.  ...  ACKNOWLEDGMENT This work has been partially supported by the Spanish Ministry of Economy and Competitiveness through the projects SPRINT (TIN2009-09237) and ARES (CSD2007-00004), being the first one also  ... 
doi:10.1002/sec.809 fatcat:vhjuyd2tjbdmpltink3yssg2ni

A Vertical Handoff Decision Algorithm for Next Generation Wireless Networks

Yaw Nkansah-Gyekye, Johnson I. Agbinya
2008 2008 Third International Conference on Broadband Communications, Information Technology & Biomedical Applications  
The objective of the thesis research is to design such vertical handoff decision algorithms in order for mobile field workers and other mobile users equipped with contemporary multimode mobile devices  ...  to streamline and optimise the operations of their field workforces in an increasingly competitive market place.  ...  Numerical analysis showed that the WLAN-to-UMTS handoff due to error-prone and bandwidth-limited wireless links incurred much larger delay than the UMTS-to-WLAN handoff.A major limitation of SIP-based  ... 
doi:10.1109/broadcom.2008.42 dblp:conf/broadcom/Nkansah-GyekyeA08 fatcat:t6wtst6vovebbk6anf54sicqy4

End-to-end quality of service provisioning through an integrated management system for multimedia content delivery

Toufik Ahmed, Abolghasem (Hamid) Asgari, Ahmed Mehaoua, Eugen Borcoci, Laure Berti-Équille, Kormentzas Georgios
2007 Computer Communications  
This paper presents an approach to the management and provisioning of end-to-end Quality of Service (QoS) in next generation networks (IP and non-IP networks) that is being developed in the IST ENTHRONE  ...  The adopted methodology in providing end-to-end QoS is through an integrated management in the context of MPEG-21 framework for managing services at both customer and provider levels using Service Level  ...  The authors would like to thank their colleagues who participated in the ENTHRONE project for the fruitful discussions, which have also contributed to the ideas presented in this article.  ... 
doi:10.1016/j.comcom.2006.10.009 fatcat:jbiqn5mj4bg63bov345vo4jbly

Metrics for Broadband Networks in the Context of the Digital Economies [chapter]

Salman M. Al-Shehri, Pavel Loskot, Tolga Numanoğlu, Mehmet Mert
2018 Broadband Communications Networks - Recent Advances and Lessons from Practice  
In a transition to automated digital management of broadband networks, communication service providers must look for new metrics to monitor these networks.  ...  Complete metrics frameworks are already emerging whereas majority of the new metrics are being proposed in technical papers.  ...  × smaller energy consumption, end-to-end latency at most 1 ms, and ubiquitous coverage also in areas with low density of users.  ... 
doi:10.5772/intechopen.72035 fatcat:cetfmc7imra27mvatqnzun7yca

Real-Time Emulation of Heterogeneous Wireless Networks with End-to-Edge Quality of Service Guarantees: The AROMA Testbed

Miguel López-Benítez, Francisco Bernardo, Nemanja Vučević, Anna Umbert
2010 EURASIP Journal on Wireless Communications and Networking  
The complexity of the interaction between all-IP B3G systems and user applications, while dealing with the Quality of Service (QoS) concept, motivates the development of this kind of emulation platform  ...  Several case studies are also presented in order to illustrate the full potential and capabilities of the presented emulation platform.  ...  Acknowledgment This work was performed in the framework of the IST AROMA project (, which was partly funded by the European Community (Ref. IST-4-027567).  ... 
doi:10.1155/2010/961302 fatcat:kbxgglwfibg4fbf3qmpqtbmtzu

Requirements and design spaces of mobile medical care

Prajakta Kulkarni, Yusuf Öztürk
2007 ACM SIGMOBILE Mobile Computing and Communications Review  
Commercial and academic mobile medical sensor systems have been mapped to the requirements derived and a comparative analysis of state of the technology is given.  ...  These models must capture not only the perceived value of the new technology and its ease of use, but most importantly the perceived risk of using this technology.  ...  The analysis of results from these trials revealed technical issues related to UMTS networks performance.  ... 
doi:10.1145/1317425.1317427 fatcat:g3wlad7v5zexbbbxhjrlv32txm

Heterogeneous and opportunistic wireless networks [chapter]

Giovanni Corazza, Alessandro Vanelli-Coralli, Raffaella Pedone, Andreas Polydoros, Dominique Noguet, Adrian Klicks, Jordi Pérez-Romero, Alessandro Guidotti, Flavia Martelli
2012 The Newcom++ Vision Book  
Recent years have witnessed the evolution of a large plethora of wireless technologies with different characteristics, as a response of the operators' and users' needs in terms of an efficient and ubiquitous  ...  In particular, and addressing a shorter term perspective, the paper starts in Section 1 with the implications of network heterogeneity on how wireless networks will be operated and perceived by the users  ...  UMTS and OFDMA in LTE), with the inclusion of adaptive Radio Resource Management (RRM) mechanisms that try to better exploit the different channel conditions perceived by users (e.g. link adaptation strategies  ... 
doi:10.1007/978-88-470-1983-6_3 fatcat:qxrlclyaojdlphftrvndvuqvoq

Performance Characterization and Call Reliability Diagnosis Support for Voice over LTE

Yunhan Jack Jia, Qi Alfred Chen, Zhuoqing Morley Mao, Jie Hui, Kranthi Sontinei, Alex Yoon, Samson Kwong, Kevin Lau
2015 Proceedings of the 21st Annual International Conference on Mobile Computing and Networking - MobiCom '15  
We perform in-depth cross-layer analysis and find that the causes are rooted in the lack of coordination among protocols designed for different purposes, and invalid assumptions made by protocols used  ...  Although the identified problems are all concerned with the immature LTE coverage in the current deployment, we find that they can cause serious impairment on user experience and are urgent to be solved  ...  Specially, we would like to acknowledge contributions from Suchit Satpathy from operations team at T-Mobile, who grounded us to the practicality of the problems that customers are facing.  ... 
doi:10.1145/2789168.2790095 dblp:conf/mobicom/JiaCMHSYKL15 fatcat:niyr5zv4bnahlgg3lxiyrvgxuy

The Emerging Core and Metropolitan Networks [chapter]

Andrea Di Giglio, Angel Ferreiro, Marco Schiano
2010 Core and Metro Networks  
set-up and tear-down), reconfiguration of signaled connections and connection restoration in case of network faults. .  ...  On the contrary, in the connection-oriented network mode, the route of any connection is planned in advance and, in the case of faults, traffic is rerouted on a new path that can be determined in advance  ...  to gain a better position in the competitive environment.  ... 
doi:10.1002/9780470683576.ch1 fatcat:qophd7gzd5gltf5qp2kkwryjx4

Why Do We Need 6G?

Bassoli Riccardo, Frank H.P. Fitzek, Emilio Calvanese Strinati
2021 Zenodo  
In parallel, 5G standardization is as Release 16, which is going to complete the definition and the design guidelines of the 5G radio access network.  ...  The study and design of 5G seems to have reached its end and 5G communication systems are currently under deployment.  ...  In particular, there can be three possible metrics to measure 'quality': QoS, Quality-of-Perception (QoP) (or user-perceived QoS), and Quality-of-Experience (QoE).  ... 
doi:10.5281/zenodo.5509644 fatcat:w5hnbvqdkbed3lou53f6v7uxo4

Multidimensional context modeling applied to non-functional analysis of software

Luca Berardinelli, Marco Bernardo, Vittorio Cortellessa, Antinisca Di Marco
2017 Journal of Software and Systems Modeling  
Indeed, many applications need to be aware of their context in order to adapt their structure and behavior for offering the best quality of service even in case the software and hardware resources are  ...  We demonstrate how certain types of analysis, not feasible with context-agnostic approaches, are enabled in our framework by explicitly representing the interplay between context evolution and non-functional  ...  , and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.  ... 
doi:10.1007/s10270-017-0645-2 fatcat:3v36z5ggkvgglnqwavgeyx2ori

Mobile Networks and Internet of Things Infrastructures to Characterize Smart Human Mobility

Luís Rosa, Fábio Silva, Cesar Analide
2021 Smart Cities  
The evolution of Mobile Networks and Internet of Things (IoT) architectures allows one to rethink the way smart cities infrastructures are designed and managed, and solve a number of problems in terms  ...  The objective of this work is to identify and discuss the challenges of mobile networks, alongside IoT and AI, to characterize smart human mobility and to discuss some workable solutions to these challenges  ...  Conflicts of Interest: The authors declare no conflicts of interest. Smart Cities 2021, 4  ... 
doi:10.3390/smartcities4020046 fatcat:lndroanudzbe7hfm53mzy2jph4

Convergence and Next Generation Networks [article]

Jaydip Sen, Munir Sayyad, Basavaraj Hooli
2010 arXiv   pre-print
The central theme of this chapter is to examine the developments in what is commonly refereed to as next generation access networks and next generation core networks and their role in convergence.  ...  The objective of this chapter is neither to give an overview of all communication platforms, nor is it aimed to assess the relative extent to which different platforms complement or compete with each other  ...  NGN offers access by users to different service providers, and supports "generalized mobility which will allow consistent and ubiquitous provision of services to users" [5] .  ... 
arXiv:1012.2524v1 fatcat:ectlu4figvgefnqeo65zjud3uu
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