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In this paper, we propose a novel approach to inter-provider service class mapping in third party (3P) negotiation model. The foundation for this mapping is laid on integer programming model enabling service class selection in domains on the end-to-end path so that performance requirements in terms of quality of service (QoS) parameters are fulfilled. This selection is based on two constraints, referring...
Shaping subscriber traffic based on token bucket filter (TBF) by Internet service providers (ISPs) results in waste of network resources in shared access when there are few active subscribers, because it cannot allocate excess bandwidth in the long term. New traffic control schemes have been recently proposed to allocate excess bandwidth among active subscribers proportional to their token generation...
Economical analysis of congested networks was studied with using economical and mathematical methods. It was found that Quality of Service (QoS) tiering may be more efficient in the short run, because it better allocates the existing network capacity, and in the long run, because it provides higher investment incentives due to the increased demand for priority services by the entry of new congestion...
The electrical engineering approach to cache coherence is defined not only by the study of IPv7, but also by the natural need for A search 12. In fact, few cyberneticists would disagree with the valuation of write-back caches. Grafter, our new algorithm for cacheable configurations, is the solution to all of these problems.
The eHealth technology will change the way the health system is handled, mainly in developing countries, such as Brazil, where there is a huge shortage of healthcare professionals to assist the patients, especially for those living in rural and remote areas. The Context-Aware Mobile Approach (CAMA) seeks to improve the Brazilian primary healthcare system through context-aware eHealth facilities, such...
The Internet is a packet-based network switches become part of everyday people in the world at large. Currently, the implementation of Internet interconnection has been held in almost all countries in the world, but in a country that has not had an all-IP based networks, is still limited to the relationship of business to business, where the state has not made regulations on this matter. It is expected...
To effectively utilize storage space of edge streaming media servers, cache policies are being studied. Unlike traditional work that focused on hit ratio and overall system bandwidth cost, this paper recognize different significance of users and propose the concept of caching utility as a new metric to evaluate caching strategies. A user based caching algorithm, USCS, involving differentiated service...
The Great East Japan Earthquake, which occurred in March 2011, damaged information infrastructure. Latest researches showed that some parts of communication networks are available even immediately after the earthquake. Therefore, connections among the different available parts of communication networks can keep communication quality for damaged areas at disasters. Recently, “Software-Defined Networking...
Under the OTT threat, a telecom call-based ICT integration approach is studied to alleviate the revenue shrinkage. The CT-initiated IT services are thereby proposed to maintain existing telecom call service while adding OTT-like communication features on Internet. To do this, an IMS-based ICT service infrastructure is developed and the OpenFlow Controller is incorporated. Under such infrastructure...
The decrease in price of internet access has brought clients' focus on a good internet service. Clients now demand guarantees for the bandwidth promised. We present a scheme in which clients are assured connection and bandwidth and if assured service is not provided, service providers pay penalty to them. The use of multi-SIM handheld devices such as mobiles and tablets have enabled clients to make...
In this paper we study a wireless access network based on the WLAN technology and enriched with features such as caching and mesh networking. This system is analysed in terms of energy efficiency and traffic offloading, two objectives that are somewhat in contrast, but both relevant to network and service providers as they directly impact the operational cost. To this aim, we developed a mathematical...
Recent years have witnessed rapid development of Telehealth applications and the integration of portable devices to facilitate services such as Voice-over-IP (VoIP), Video-over-IP and distribution of other data types e.g., medical images and health sensor data. In line with Telehelath, Home Area Network (HAN) has also seen broad deployments and has expanded conventional households to support latest...
The paper presents telecommunication services quality evaluation issues. It discusses the general European Union attitude and mentions the main documents of the European Council regarding the quality of service. The author presents two different, user's and operator's, points of view on the matter. Hence, two approaches to the service quality evaluation are discussed: an objective and subjective one...
The reliability of a communication network is important, as the Internet is an important social infrastructure. However, especially in a large network, it is difficult to avoid the failures due to various factors. It is necessary to design a network that keeps communication among nodes even during failures. However, in many actual networks, there exists the risk of telecommunication blackout by a...
In this study, the discrete-time performance of BLUE algorithms under bursty and correlated traffics is analyzed using two-state Markov-modulated Bernoulli arrival process (BLUE-MMBP-2). A two-dimensional discrete-time Markov chain is used to model the BLUE algorithm for two traffic classes, in which each dimension corresponds to a traffic class and the parameters of that traffic class. The MMBP is...
In present network, bandwidth is valuable resource that limits the enlargement and speed up of communication. Hardware price drops as nearly line speed while long distance transmit price stays stable for years. This trend directs the future network to exchange computation and storage with bandwidth. Service-Oriented Future Internet Architecture proposes to add computation and storage ability to service...
As one of the most popular topics in the Next Generation Network (NGN), Named Data Networking (NDN), a newly proposed network architecture centered on content data, targets on altering the existing communication protocol between Internet hosts. NDN uses data names rather than IP addresses for data transmission and re-designs the packet formats and the protocols between layers in order to substitute...
Over the course of the past two decades, network use has continued to outpace network capacity growth. This has lead to increasing network congestion, which hinders day to day use as well as Internet content innovation. Modifying how Internet Service Providers (ISPs) charge the user is one way to control congestion and improve collective social welfare. In this paper, we discuss several Internet pricing...
Mobile internet penetration is increasing significantly in Taiwan, but it also leads to more and more subscribers' complaints about mobile internet performance. The regulatory authority, National Communications Commission (NCC), authorizes Telecom Technology Center (TTC) to start the project named “Measure Taiwan Mobile Internet” since 2012. The project not only aims to comprehensively understand...
In order to understand the effects of QoE (Quality of Experience) on User Engagement, we measured QoE metrics on client side during Roland Garros 2013, an international tennis tournament broadcast live over the Internet. We analyze the impacts of four metrics on User Engagement: the video startup time, buffering ratio, average bitrate and content popularity. Our results demonstrate that video buffering...
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