The Need to Measure the Value of Information Technology

2002 ◽  
pp. 1-9
Author(s):  
Han van der Zee
Keyword(s):  
Information Technology ◽  
Communication Networks ◽  
New Technologies ◽  
Capital Expenditure ◽  
Data Communication ◽  
Leading Edge ◽  
Local Area ◽  
Rate Of Change ◽  
Personal Digital Assistants ◽  
Personal Area Networks

Living as we do in the Information Age, an immense amount of information is readily available through high-powered workstations, laptop computers, Personal Digital Assistants (PDAs), and other smart devices, connected through high-bandwidth data communication networks, including the Internet, Wide Area Networks (WANs), Local Area Networks (LANs), and upcoming Personal Area Networks (PANs). Evolving technologies are directly changing the speed and shape of competition and how business is done, rewriting the rules of the game in industry after industry. The rate of change in today’s business environment has pushed the need for technologies and acceptance of them to a continuously accelerating pace. The new technologies are enabling organizations to be flatter, networked, and more flexible, redefining our notions about everything from R&D to distribution, and in the processes making possible smarter, more customized products and services. As a result of these forces, organizations spend enormous sums of money on computer hardware, software, communication networks, databases, and specialized personnel, collectively known as Information Technology (IT). Leading-edge companies all over the world in all industries have increased their overall IT expenditures by double-figure percentages annually. Many organizations currently observe that up to 50 percent of their total capital expenditure is for IT.

Collaborative Working in an ISP Environment

2011 ◽  
pp. 269-279
Author(s):  
Sathya Rao ◽  
Eric Mannie-Corbisier ◽  
Leszek Siwik
Keyword(s):  
Information And Communication Technologies ◽  
Communication Networks ◽  
Business Models ◽  
Business Processes ◽  
New Technologies ◽  
Service Providers ◽  
Data Communication ◽  
The Internet ◽  
Sustainable Business ◽  
Internet Service

The way of life has changed with the introduction of information and communication technologies (ICT) in every one’s day to day activities and the business. As ICT technologies are constantly evolving, many people attribute the success of enterprises to the ways they deploy and take advantage of new technologies, not only to make their operations more efficient but most importantly to refine and adopt new effective and adaptive business models. Since the advent of the Internet and the very first Internet service providers (ISP) in operation, the traditional ISP market has been in constant evolution due to the gradual globalisation and commoditisation of ISP services. Deregulation and ICT policies have fostered competition (e.g., unbundling of the local loop and so forth) as well. The Internet is as an important channel of interaction inside and/or outside enterprises. The essence of the Internet is conducting business and running of business processes over data communication networks based on nonproprietary standards (Porter, 2001). The World Wide Web as a portal represents a major electronic business (e-business) platform accessed through communication channels provisioned by network and service providers (such as ISDN, DSL, WLAN, UMTS, etc.). There are many challenging aspects of the e-Business that must be considered for a sustainable business of an ISP (Petrie et al., 2004).

Convergence Technology for Enabling Technologies

2007 ◽  
pp. 149-153
Author(s):  
G. Sivaradje
Keyword(s):  
Communication Networks ◽  
Local Area ◽  
Wide Area Networks ◽  
Personal Area Networks ◽  
Wireless Communication Networks ◽  
Metropolitan Area Networks ◽  
Wireless Personal Area Networks ◽  
Heterogeneous Architecture ◽  
Radio Access ◽  
Wireless Metropolitan Area Networks

Today, we find a large number of wireless networks based on different radio access technologies (RATs). Every existing RAT has its own merits. Now the focus is turned towards the next-generation communication networks (Akyildiz, Mohanty, & Xie, 2005), which will seamlessly integrate various existing wireless communication networks, such as wireless local area networks (WLANs, e.g., IEEE 802.11 a/b/g and HIPERLAN/2), wireless wide area networks (WWANs, e.g., 1G, 2G, 3G, IEEE 802.20), wireless personal area networks (WPANs, e.g., Bluetooth, IEEE 802.15.1/3/4), and wireless metropolitan area networks (WMANs, e.g., IEEE 802.16) to form a converged heterogeneous architecture (Cavalcanti, Agrawal, Cordeiro, Xie, & Kumar, 2005).

scholarly journals An architecture for power substations communication networks based on SDN and virtualization paradigms

2021 ◽  
Author(s):  
Juan Felipe Botero Vega ◽  
Alexander Leal Piedrahita
Keyword(s):  
Communication Networks ◽  
Network Architecture ◽  
New Technologies ◽  
Network Virtualization ◽  
Data Communication ◽  
Electrical Energy ◽  
New Research ◽  
Grid Operation ◽  
Transmission And Distribution ◽  
Power Substations

The deployment of infrastructures related to the Smart Grid concept introduces data communication networks in the grid operation systems (control, communication, and monitoring). The implementation of data communication networks facilitates and improves the efficiency of the tasks related to the generation, transmission, and distribution of electrical energy. In turn, network management is being permeated by new technologies such as Software Defined Networking (SDN) and network virtualization, that promote automation and innovation of communication networks aiming to overcome the lack of flexibility and the difficulties to evolve that are present in current communication networks. In this context, this paper proposes a reconceptualization of the power substations communications network architecture based on the IEC 61850 standard. Here, we present a complete view of the Smart Solution for Substation Networks (S3N) architecture, which allows modeling the future power substations communication networks taking advantage of the benefits introduced by SDN and virtualization technologies. In addition, in order to provide a better understanding of the challenges arising in this area, and to generate new research interest in this field, a review of several studies oriented to determine the feasibility of incorporating SDN as a key element to improve the management and operation of the power substations communication networks is presented.

Bivalence Fuzzified Decision Stump Bootstrap Aggregation for Energy and Cost-Efficient 6G Communication

2021 ◽  
Author(s):  
Robbi Rahim ◽  
Parameshwaran Ramalingam ◽  
Manikandan Ramachandran ◽  
Vidhyacharan Bhaskar ◽  
Ambeshwar Kumar
Keyword(s):  
Communication Networks ◽  
Mobile Communication ◽  
Architectural Design ◽  
New Technologies ◽  
Data Communication ◽  
High Energy ◽  
Sixth Generation ◽  
Efficient Communication ◽  
Cost Efficient ◽  
Energy Signal

Abstract Future Sixth generation (6G) wireless networks are anticipatedto offer entirecoverage, improved spectral, energyandcost-efficient communication.The 6G will enable a network collectivelyand offer seamless wireless connectionsbetween the devices. While the deployment of 5G is ongoing, mobile communication networks are still suffering many basic challenges such as high-energy consumption and operating costs. To address these issues, it is very important to consider and develop new technologies in next-generation mobile communication, namely 6G. Novel machine learning can potentially assist the 6G to obtain better communication. Bivalence Fuzzified Decision Stump Bootstrap Aggregating (BFDSBA) model is introduced for energy and cost efficient communication. The BFDSBA model considers the nodes i.e. devices in the forecasting process before the data communication in the 6G network. The Bootstrap Aggregative technique utilizes set of weak learners as Bivalence Fuzzified Decision Stump. For each device in the network, energy, signal strength, and bandwidth is measured. Based on the estimated resources, efficient devices are selected for the 6G network architectural design. This in turn helps to improvedata communication with lesser cost in6G networks. The result exposesimprovement of BFDSBA model than the conventional methods.

scholarly journals Mapping of data communication networks on social media

2021 ◽  
Vol 5 (2) ◽  
pp. 143-162
Author(s):  
Noviar Jamaal Kholit ◽  
Muhamad Nastain
Keyword(s):  
Information Technology ◽  
Communication Networks ◽  
Real Life ◽  
Data Communication ◽  
Easy Access ◽  
Media Industry ◽  
Positive Side ◽  
The Social ◽  
Ease Of Access ◽  
Network Patterns

Information technology is developing very fast, this has an impact on real changes in every element of life. In addition to hitting the information media industry, developments in information technology have brought updates to public spaces with easy access and an increasingly massive pattern of information distribution. Ease of access does not always present a positive side but there is a negative side, namely shifting communication patterns with the spread of false information or disinformation methods that invite public upheaval. This research uses the case study method, which is one way to investigate contemporary phenomena in the context of real life, where the boundaries between the phenomenon and the context are not clearly visible. Through the Social Network Analyzer (SNA) theoretical approach, this research will find three communication network patterns, namely a centralized network, a decentralized network and a distributed network.

Convergence Technology for Enabling Technologies

2009 ◽  
pp. 961-967
Author(s):  
G. Sivaradje ◽  
I. Saravanan ◽  
P. Dananjayan
Keyword(s):  
Communication Networks ◽  
Radio Resource Management ◽  
Path Loss ◽  
Type Systems ◽  
Local Area ◽  
Personal Area Networks ◽  
Wireless Personal Area Networks ◽  
Heterogeneous Architecture ◽  
Radio Access ◽  
Wireless Metropolitan Area Networks

Today, we find a large number of wireless networks based on different radio access technologies (RATs). Every existing RAT has its own merits. Now the focus is turned towards the next-generation communication networks (Akyildiz, Mohanty, & Xie, 2005), which will seamlessly integrate various existing wireless communication networks, such as wireless local area networks (WLANs, e.g., IEEE 802.11 a/b/g and HIPERLAN/2), wireless wide area networks (WWANs, e.g., 1G, 2G, 3G, IEEE 802.20), wireless personal area networks (WPANs, e.g., Bluetooth, IEEE 802.15.1/3/4), and wireless metropolitan area networks (WMANs, e.g., IEEE 802.16) to form a converged heterogeneous architecture (Cavalcanti, Agrawal, Cordeiro, Xie, & Kumar, 2005). Seamless integration does not mean that the RATs are converged into a single network. Instead the services offered by the existing RATs are integrated as shown in Figure 1. Convergence technology is a technology that combines different existing access technologies such as cellular, cordless, WLAN-type systems, short-range wireless connectivity, and wired systems on a common platform to complement each other in an optimum way and to provide a multiplicity of possibilities for current and future services and applications to users in a single terminal. After creating a converged heterogeneous architecture, the next step is to perform a common radio resource management (RRM) (Magnusson, Lundsjo, Sachs, & Wallentin, 2004). RRM helps to maximize the use of available spectrum resources, support mixed traffic types with different QoS requirements, increase trunking capacity and grade of service (GoS), improve spectrum usage by selecting the best RAT based on radio conditions (e.g., path loss), minimize inter-system handover latency, preserve QoS across multiple RATs, and reduce signaling delay.

The effects of Tx./Rx. pointing errors on the performance efficiency of local area optical wireless communication networks

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mahmoud M. A. Eid ◽  
Ahmed Nabih Zaki Rashed ◽  
Mohd. Sultan Ahammad ◽  
Bikash Kumar Paul ◽  
Kawsar Ahmed
Keyword(s):  
Wireless Communication ◽  
Communication Networks ◽  
Local Area ◽  
Cavity Surface ◽  
Wireless Communication Networks ◽  
Q Factor ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Pointing Errors ◽  
Emitting Lasers

Abstract This study presents the effects of Tx./Rx. pointing errors on the performance efficiency of local area optical wireless communication networks. The received signal power and max Q factor are measured in the presence of vertical-cavity surface-emitting lasers (VCSELs) bias current and modulation current at maximum propagation distance for the wireless network. The signal is enhanced with increasing of bias and modulation peak currents of the VCSEL device. The optimum received power and max. Q factor is also examined at Tx./Rx. the pointing error of 0.1 mrad and propagation reach of 5 km at available bit rates transmission of 10 Gb/s.

Numerical simulation of swirling flow effect on the first stage vane film cooling distribution

2016 ◽  
Vol 07 (03) ◽  
pp. 1650031
Author(s):  
Hong Yin
Keyword(s):  
Flow Field ◽  
Film Cooling ◽  
Swirling Flow ◽  
Cooling System ◽  
Leading Edge ◽  
Suction Side ◽  
Local Area ◽  
Swirl Flow ◽  
Flow Effect ◽  
Recirculation Flow

In advanced gas turbine technology, lean premixed combustion is an effective strategy to reduce peak temperature and thus, NO[Formula: see text] emissions. The swirler is adopted to establish recirculation flow zone, enhancing mixing and stabilizing the flame. Therefore, the swirling flow is dominant in the combustor flow field and has impact on the vane. This paper mainly investigates the swirling flow effect on the turbine first stage vane cooling system by conducting a group of numerical simulations. Firstly, the numerical methods of turbulence modeling using RANS and LES are compared. The computational model of one single swirl flow field is considered. Both the RANS and LES results give reasonable recirculation zone shape. When comparing the velocity distribution, the RANS results generally match the experimental data but fail to at some local area. The LES modeling gives better results and more detailed unsteady flow field. In the second step, the RANS modeling is incorporated to investigate the vane film cooling performance under the swirling inflow boundary condition. According to the numerical results, the leading edge film cooling is largely altered by the swirling flow, especially for the swirl core-leading edge aligned case. Compared to the pressure side, the suction side film cooling is more sensitive to the swirling flow. Locally, the film cooling jet is lifted and turned by the strong swirling flow.

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