Future benefits and applications of intelligent on-board processing to VSAT services

The trends and roles of VSAT services in the year 2010 time frame are examined based on an overall network and service model for that period. An estimate of the VSAT traffic is then made and the service and general network requirements are identified. In order to accommodate these traffic needs, four satellite VSAT architectures based on the use of fixed or scanning multibeam antennas in conjunction with IF switching or onboard regeneration and baseband processing are suggested. The performance of each of these architectures is assessed and the key enabling technologies are identified

The 30/20 GHz fixed communications systems service demand assessment. Volume 3: Appendices

The market analysis of voice, video, and data 18/30 GHz communications systems services and satellite transmission services is discussed. Detail calculations, computer displays of traffic, survey questionnaires, and detailed service forecasts are presented

ACUTA Journal of Telecommunications in Higher Education

In This This The Strategic Accommodation of Change Good Advice: Clean Out Your Closets (and More) Making Decisions to Remove Legacy Cable ADVERTORIAL: Best Practices for lP Telephony lmplementation ADVERTORIAL: VolP Security: Myth or Reality? ln-Room Phones: Nice or Necessary? Voice and Network Department Convergence Making Communications Accessible lnstitutional Excellence Award: Sinclair Community College Interview President\u27s Message From the Executive Director Here\u27s My Advic

Space station data system analysis/architecture study. Task 2: Options development, DR-5. Volume 2: Design options

The primary objective of Task 2 is the development of an information base that will support the conduct of trade studies and provide sufficient data to make key design/programmatic decisions. This includes: (1) the establishment of option categories that are most likely to influence Space Station Data System (SSDS) definition; (2) the identification of preferred options in each category; and (3) the characterization of these options with respect to performance attributes, constraints, cost and risk. This volume contains the options development for the design category. This category comprises alternative structures, configurations and techniques that can be used to develop designs that are responsive to the SSDS requirements. The specific areas discussed are software, including data base management and distributed operating systems; system architecture, including fault tolerance and system growth/automation/autonomy and system interfaces; time management; and system security/privacy. Also discussed are space communications and local area networking

Voice over IP

The area that this thesis covers is Voice over IP (or IP Telephony as it is sometimes called) over Private networks and not over the Internet. There is a distinction to be made between the two even though the term is loosely applied to both. IP Telephony over Private Networks involve calls made over private WANs using IP telephony protocols while IP Telephony over the Internet involve calls made over the public Internet using IP telephony protocols. Since the network is private, service is reliable because the network owner can control how resources are allocated to various applications, such as telephony services. The public Internet on the other hand is a public, largely unmanaged network that offers no reliable service guarantee. Calls placed over the Internet can be low in quality, but given the low price, some find this solution attractive. What started off as an Internet Revolution with free phone calls being offered to the general public using their multimedia computers has turned into a telecommunication revolution where enterprises are beginning to converge their data and voice networks into one network. In retrospect, an enterprise\u27s data networks are being leveraged for telephony. The communication industry has come full circle. Earlier in the decade data was being transmitted over the public voice networks and now voice is just another application which is/will be run over the enterprises existing data networks. We shall see in this thesis the problems that are encountered while sending Voice over Data networks using the underlying IP Protocol and the corrective steps taken by the Industry to resolve these multitudes of issues. Paul M. Zam who is collaborating in this Joint Thesis/project on VoIP will substantiate this theoretical research with his practical findings. On reading this paper the reader will gain an insight in the issues revolving the implementation of VoIP in an enterprises private network as well the technical data, which sheds more light on the same. Thus the premise of this joint thesis/project is to analyze the current status of the technology and present a business case scenario where an organization will be able to use this information

A framework for improving the quality of management information

Good management information is critical to the success of any organisation. Without proper information, the organisation will starve and management will steer it towards its own destruction. Although management usually receives a constant flow of information every day, it does not necessarily serve its purpose. The information could be useful and contribute to good decision making. It could also be wrong, which could contribute to poor decisions and failure. Finally it could be available but inappropriate to the management of the organisation. Computer systems produce most of the management information in organisations. There are a variety of types of computer equipment and applications that could make a significant contribution to improve the quality of the information produced in an organisation. Improving the quality of the information could enhance the decisions and actions of management and therefore improve the results of the organisation. The objective of this study is to develop a framework for enabling managers to understand the attributes of quality information, and to identify appropriate computer equipment and applications to enhance the quality of information. The hypothesis is as follows: "Quality information is that information that can have a decisive impact on the decisions and action of the decision maker. It is feasible to identify the attributes of quality information. This research clarifies the main and supportive attributes of quality information. Computer equipment and applications, collectively known as computer tools, used and managed in an organisation contribute to enhance or impair quality information. These tools, and the role they can play to produce quality information, will be explained in this study. " To support the hypothesis the study is conducted in three phases. Phase 1 will establish the attributes of quality information. It commences by considering the historical development of computers and information. It explores the different driving forces that produced the technology of today and tomorrow. It then explores the nature and characteristics of information to develop an appreciation for the complexity and intricacies of information. This phase concludes by identifying the attributes of quality information: relevancy, accuracy, timeliness and comprehensibility. Phase 2 will assess the contribution of computer tools to produce quality information. The contribution that the computer equipment and applications make to enhance the attributes of quality information is described and evaluated. Computer tools are defined, and a method of assessing their contribution to enhance quality is designed and applied. The phase concludes with a summary of the contribution that the tools could make to enhance specific information components. The final phase produces a framework to evaluate the production of quality information. With a clear understanding on the one hand of the attributes of quality information, and, on the other hand of the contribution that different computer equipment and applications can make to improve the quality of information, a framework is developed to help managers to identify appropriate technology to improve the information on which they base their decisions. This framework could be used by information managers to improve the effectiveness of management's actions and decisions. The results of the study, it is submitted, support the stated hypothesis and add benefit to the practical application of information management.Dissertation (MCom)--University of Pretoria, 2009.AccountingUnrestricte