Search results for "INTERNET"
showing 10 items of 2589 documents
Market Opportunity of China Telecom 3G Toward 4G - A Social-Technical Analysis for its Future Development
2013
In the Information and communication Technology (ICT) field, the success a new player will face is the challenge for the opportunity of new market development. China's mobile subscribers grew by 9.93 millions to 1.132 billions in February 2013.The convenience of communication prompted China’s growth, but there is little information available in literature about how it happened and what the next development steps will be for the China Telecom Industry.The purpose of this paper is an attempt to picture the future growth path of China Telecom market opportunities from 3G toward 4G and beyond, including viewing this from the angles of telecom/internet e-commerce regulation development; globaliz…
Energy Efficient Resource Allocation for OFDMA Two-Way Relay Networks with Channel Estimation Error
2015
In this work, we consider the practical issues of resource allocation problem in OFDMA two-way relay networks: the inaccuracy of channel-state information (CSI) available to the transmitters. Instead, only the estimated channel status is known by the transmitters. In this context, a joint optimization of subcarrier pairing and allocation, relay selection and transmit power allocation is formulated in the OFDMA two-way amplify-and-forward relay networks. Moreover, to ensure the Quality of Service (QoS) requirement, the energy consumption must be minimized without compromising the QoS. Therefore, by applying convex optimization techniques, energy efficient algorithms are developed with the ob…
Scalable and Privacy-Preserving Admission Control for Smart Grids
2015
International audience; Energy demand and production need to be constantly matched in the power grid. The traditional paradigm to continuously adapt the production to the demand is challenged by the increasing penetration of more variable and less predictable energy sources, like solar photovoltaics and wind power. An alternative approach is the so called direct control of some inherently flexible electric loads to shape the demand. Direct control of deferrable loads presents analogies with flow admission control in telecommunication networks: a request for network resources (bandwidth or energy) can be delayed on the basis of the current network status in order to guarantee some performanc…
Structural Source of the Trap of ICT Advancement - Lessons from World ICT Top Leaders
2014
In light of the significant consequence of the trap of dramatic advancement of information and communication technology (ICT) in the global economy, both nations and firms that have been compelling their productivity decline. This resulted in great stagnation of ICT advanced economies and therefore its structural sources were analyzed. Based on an empirical analysis tracing, the trend in marginal productivity of ICT and its subsequent prices among the top ICT leaders in the world over the last two decades correlating with the effects of ICT, two faces of ICT advancement were identified. On one side, advancement of ICT contributes to its prices increase by new functionality development, its …
Smart plugs: A low cost solution for programmable control of domestic loads
2014
International audience; Balancing energy demand and production is becoming a more and more challenging task for energy utilities. This is due to a number of different reasons among which the larger penetration of renewable energies which are more difficult to predict and the meagre availability of financial resources to upgrade the existing power grid. While the traditional solution is to dynamically adapt energy production to follow the time-varying demand, a new trend is to drive the demand itself by means of Direct Load Control (DLC). In this paper we consider a scenario where DLC functionalities are deployed at a large set of small deferrable energy loads, like appliances of residential…
Large Scale Control of Deferrable Domestic Loads in Smart Grids
2016
International audience; In this paper, we investigate a realistic and low-cost deployment of large scale direct control of inelastic home appliances whose energy demand cannot be shaped, but simply deferred. The idea is to exploit 1) some simple actuators to be placed on the electric plugs for connecting or disconnecting appliances with heterogeneous control interfaces, including non-smart appliances, and 2) the Internet connections of customers for transporting the activation requests from the actuators to a centralized controller. Our solution requires no interaction with home users: in particular, it does not require them to express their energy demand in advance. A queuing theory model …
Research the Opportunities a Foreign Languages’ Competence for Professional Project Management in Latvia
2015
In the current competitive working environment time has become the key resource therefore universities must be able to satisfy higher education needs by enabling students to obtain as many professional skills and knowledge as possible. One of the solutions is to develop online studies by organising the language courses on the internet and by supplementing in-class courses with online study materials. The goal of this work is to research the opportunities a foreign languages’ competence for professional project management in Latvia. Research materials on foreign language teaching methods and applicable IC technological aspects were gathered, and a survey was completed and its results analyse…
Service-oriented Architecture Projects in Practice: A Study of a Shared Document Service Implementation
2014
Published version of an article in the journal: Procedia Technology. Also available on Science Direct: http://dx.doi.org/10.1016/j.protcy.2014.10.017 This paper reports on a case study focusing on service-oriented architecture (SOA) projects in practice. The aim of these projects has been to develop a shared document service supporting different business divisions in a large Norwegian governmental institution. The research question guiding this research is: How are SOA projects carried out in practice? What are the challenges of developing shared services in service-oriented architecture? SOA projects are accompanied by a complex socio-technical system development environment. In the presen…
Defining an Internet-of-Things Ecosystem
2012
By bringing the Internet connectivity to the things, the Internet-of-Things (IoT) promises a number of benefits to its customers, varying from faster and more accurate sensing of our environment, to more cost-efficient tracking of industrial processes. Likewise, from the business perspective, the wide adoption of IoT is expected to generate significant revenues to the providers of IoT application and services. The IoT adoption depends on whether the ecosystems of the companies focusing on IoT technologies would emerge and succeed in delivering to the market the solutions attractive to the customers. Therefore, it is of utmost importance to understand the essence and constituents of IoT ecos…
Understanding flow experience from users’ requirements
2015
This paper argues that the concept of flow can be useful in gaining a better understanding of information system users’ flow experience. This paper applies this concept in the requirements development phase of an Internet protocol television e-learning service development project. The findings show that flow experience can be visualised and measured, and that there are differences in how users see and perceive different features. Some features are driven by more experiential needs, whereas others are driven by more task-oriented goals. The findings indicate that the users’ perceived flow experiences can already be measured during the early phases of information systems IS development projec…