| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 46-52 |
| Abstraksi Narasi | : | Effective end-to-end management of today`s globalized heterogeneous corporate customer networks, a mixture of ATM WANs and ATM LANs, is essential for customers at the cutting edge of technology. ATM WAN and ATM LAN management systems generally have different management policies and management information models. Studies on the customer network management system (CNMS) to realize end-to-end customer network management have thus adopted the telecommunications management network (TMN) interoperability concept, which is based on CNM manager and agent interoperation. This article proposes an end-to-end customer network management method that realizes interoperation. In order to realize configuration management, fault management, and performance management, the CNM agent extracts the information needed by CNMS from the ATM transport network operations system and controls the operations system accordingly. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 118-121 |
| Abstraksi Narasi | : | In this article the authors summarize CSELT`s experience in setting up a corporate intranet as a way to distribute and publish information. The intranet archiecture and the main service offered are presented, with an outline of the deployment and organizational aspects. Finally, the CSELT intranet evolution as foressen is presented. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 132-140 |
| Abstraksi Narasi | : | The growing popularity of portable and mobile computing and communication devices, along with the introduction of wireline broadband networks, is fueling demand for wireless broadband networks. Since ATM has been accepted as the standard for broadband integrated service networks, the authors consider the problem of providing `ATM-like services` to mobile devices. In this article, the fundamental issues that to be tackled in order to provide broadband services which are currently available (or will be very shortly) to wireline hosts are discussed. The authors compare and contrast the architectures that have been proposed for extending the broadband wireline network infrastructure to the wireless environment. It is argued that transporting smal ATM cells over the air leads to inefficient utilization of the already scarce transmission capacity. Subsequently, the authors propose an architecture for integrated wireless and wireline broadband networks which allows the wireline and wireless parts of the networks to be designed independently, therefore allowing each to be optimized for the environment in which it operates. At the same time, the proposed architecture also permits simple and efficient interconnection between the wireline and wireless infrastructures. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 72-76 |
| Abstraksi Narasi | : | No matter how good the transmission technology, if you can not use it. Telecommunications planners are faced with simultaneousyly provisioning the explosion of lines linking homes and businesses with central offices and planning for a future where highly sophisticated interactive broadband services must be provided. Managing all portions of the network is complicated, but none more so than the access network known colloquially as `the last mile,` the low data speed capacity lines that actually connect the home or business to the high-speed network. Before a line used for Plain Old Telephone Service, called a loop, can be used in higher speed applications it must be checked to make sure that it has the right electrical characteristics. The evolution of the loop from POTs to midband to broadband usage is examined emphasizing the relevant plant administration processes. Using today`special service administration is an expensive way to provide service. Alternates to special service provisioning are described. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 112-117 |
| Abstraksi Narasi | : | The increasing number and heterogeneity of networked of personal computers (PCs) along with the integration of PC networks into classical data processing infrastructures consistig of UNIX, NT, and mainframe serves is one of the most important computing trends in recent years. The variety of operating systems and system configurations turns management in this environment into a complex task. Obviously, this scenario cannot be efficiently managed with proprietary or dedicated tools alone. Management applications must become part of an integrated network, system, and application management solution. This need is further exacerbated by the increasing appearance of mobile systems. Relevant management task such as inventory management, software distribution, remote control, and license management are presented according to their need in different PC networking environments. An overview of the DMI standard of the DMTF as well as the web-based enterprise management (WBEM) and Java management API (JMAPI) activities is followed by a complex, and very dynamic area in management. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 40-45 |
| Abstraksi Narasi | : | Multimedia applications have been evaluated in multiple field trials for some years. Experience was gained on the application, network services, and technology levels. Lessons learned from multimedia field trials will influence development, rollout, and operations of future broadband networks. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 84-91 |
| Abstraksi Narasi | : | An intranet is a network which facilitates seamless computing and communications-using mostly Internet software and hardware technologies-within a corporation. In this article the key issues, challenges, technological and policy enablers, and driving expectations of customers and/or applications of corporate network are briefly reviewed. Management of service and information transport are then examined. Various phases in the life cycle of enterprise networks (ENs) are then presented. Finally, one posibble path for the evolution of existing ENs to intranets or next-generation ENs is discussed. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 122-131 |
| Abstraksi Narasi | : | In the Global System for Mobile Communications (GSM) Phase 2+ development, one major activity is to specify the general packet radio service (GPRS). The standardization is expected to be completed at the end of 1997. The purpose of GPRS, like other packet data service, is to efficiently accommodate data sources that are bursty in nature. Another important goal of the technology is to make it possible for GSM license holders to share physical resources on a dynamic, flexible basis between packet data services and other GSM services. In this article the authors present a detailed description of the GPRS system, emphasizing the radio link protocol, and demonstrate its performance. The performance measures have been obtained from the WINLAB GPRS simulator. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 60-65 |
| Abstraksi Narasi | : | Telecommunications Management Network (TMN)-based object models need to satisfy the three objectives of interoperability, integration, and flexibility in order to support rapid provosion of future broadband services. While current models are focused on interoperability, it is necessary to consider new techniques to deliver the integration and flexibility capabilities required for these services. The Open Distributed Processing Reference Model (RM-ODP) [1], coupled with CORBA technology [2], has been proposed as a distributed environment to provide the integration and flexibility capabilities lacking in existing protocols. Existing protocols will continue to be widely used for broadband management interfaces as the distributed environment evolves. The challenge is to maximize the benefits of the distributed environment without compromising the benefits already delivery by the existing protocols. A multiplicity of models has been developed to differing requirements and using differing methodologies. Although there is much commonality between these models, a final stage of convergence is needed to produce a unified network model. There are outstanding issues for definition of management services, resource models, and at the computational level, which need to be resolved for successful evolution to distributed systems. However, a partnership between formal standards bodies and other organizations and consortia which exploits their complementary strengths will ensure that distributed network management of the TMN will become a reality. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 142-147 |
| Abstraksi Narasi | : | Two one-way channels are normally used in digital two-way voice communication. Each channel is in effect used only oone half the time. A recent discovery of ours recognized that any one-way channel within a satellite spot-beam can be accessed by anyone in the footprint of the beam. In a two-way voice call, the two parties alternate (in principle) in their transmissions- when one speaks the other is silent. Therefore, the two can share a single one-way channel and provide continuous use of the channel, their respective transmissions interleaved with one another. This condition is unique to intrabeam communication via satellite (or ballon). In a satellite system, capacity is a valued commodity, where capacity is limited by allocated bandwidth and power available. Under those two constraints of bandwidth and power limitation, the discovery described generates a doubling of capacity. This article addresses this concept and some of the engineering challenges and opportunities arising therefrom. |
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