| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 72-79 |
| Abstraksi Narasi | : | The Common Object Request Broker Architecture (CORBA) specification defines interfaces and services to support interoperability and distribution transpsrencies for building distributed applications. The Telecommunications Information Netowrking Architecture (TINA) defines a framework for development of service and network management applications which relies on the use of a distributed processing such as CORBA. This approach is presented in the article, which discusses also the interoperation with the current TMN infrastructure. |
| Nama Pengarang | : | Scott Burgett, Eckhard Koch, Jian Zhao, Juan Pavon et al, German Goldszmidt, Yechiam Yemini, Lakshmi Raman, Stallings, William, Dimitris Alevras et al, William Webb, David J. Sidor, J. Patrick Thompson |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 94-100 |
| Abstraksi Narasi | : | This article addresses the problem of embedding a robust copyright label into image data for identifying the ownership and distribution of the digitized image. The article first defines a reasonable set of functional requirements and design criteria for an image copyright labeling system, and then describes a labeling method using a JPEG model-based, frequency-hopped, randomly sequenced pulse position modulated code (RSPPMC). Our experiments demonstrated that the proposed method meets the requirements for copyright protection, including the robustness of an embedded label against several damaging possibilities such as lossy data compression, low-pass filtering, and color space conversion, as well as printing/scanning, scaling, and cropping. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 40-44 |
| Abstraksi Narasi | : | For decades, TDM has been the fundamental basis for adding capacity to digital telecommunications networks. Suddenly emerging in the past two years WDM has emerged as an important and widely deployed complement to TDM. In fact, sales of systems based on the new technology have risen to over a billion dollars at breathtaking speed. In this article, the author addresses the factors that propelled WDM to the forefront of telecommunications technologies, and looks at the immediate future, with WDM pushing into new areas of telecommunications networks, and emerging as the basis of logical optical networking. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 56-61 |
| Abstraksi Narasi | : | This article examines the complex issues surrounding deployment of wavelength-division technology in the local exchange network. It discussed demand, economics, technology advantages/disadvantages, salability, operations, interoperability, and optical networking. The emphasis is on economics and manageability. After a review of these issues, the article looks forward to the optical network in a multivendor interoperable environment and to the continuing evolution of standards that will expedite the deployment of optical networking technology. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 52-55 |
| Abstraksi Narasi | : | The deployment of wave-division multiplexing (WDM) systems in the long distance network has dramatically increased the usable bandwidth of the embedded fiber optic cable. Many of the factors affecting the deployment of WDM systems are discussed from the selection and installation of the fiber optic cable in the 1980s to the current bandwidth demand. The future of WDM systems, network architecture, and the emerging optical layer are briefly addressed. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 68-78 |
| Abstraksi Narasi | : | The definition of standards for optical networking is a new work item for the International Telecommunication Unio (ITU) 1997-2000 Study Period. The authors provide a brief overview of this standards development effort, with a specific focus key issues currently under discussion that, when resolved, will have farreaching impact on the ultimete realization of `optical networking.` |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 118-124 |
| Abstraksi Narasi | : | The ACTS program moves the results of the R&D of the parent RACE program nearer to realization through technology and user trials. Particularly in the mobile domain of ACTS, several projects have been investigating the user dimension in the context of the third-generation Universal Mobile Telecommunications Service. Results so far suggest many opportunities to broaden participation, exploit the inherent benefits of the mobile environment, and take advantage of the enormous improvements in wireless communications to realize the potential of global multimedia mobility. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 128-136 |
| Abstraksi Narasi | : | This article addresses the secure provision of UMTS services in diverse access networks and is based upon the research work of the ACTS projects EXODUS, COBUCO, and ASPECT. One of the distinguishing requirements. This will necessitate the development of distinct radio interfaces for each environment, and a service provision and management functionality that can operate across diverse access technologies. Projects within the ACTS program are addressing these issues, and we highlight the UMTS platforms developed by the COBUCO and EXODUS projects. The EXODUS services, access network, IN-based functional architecture, and mobility management are described, which address the deployment of UMTS services through wired (ATM) and wireless (DECT) access networks. This is followed by a description of the services, access network, and mobility management in the COBUCO project, where the emphasis is on the deployment of UMTS services in private networks using DECT access. Both project are studying the practicability of selected UMTS services as demonstrated in an operating trial system. Having described these platforms, we focus discuss how the security features developed are being integrated into the UMTS platforms. The focus here is on the joint scheduled with the EXODUS project. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 82-95 |
| Abstraksi Narasi | : | Currently worldwide activities are going on to define third-generation mobile systems (IMT-2000 on ITU/UMTS in Europe). These systems aim to support a wide range of services from voice and low-rate data up to high-rate data services, including multimedia services, and circuit- and packet-oriented services. These systems will operate in all radio environments to provide service to anyone, anytime, anywhere. In Europe the European Commision is partlyfunding research activites in the ACTS framework related to third-generation systems. A spectrum-efficient multiple access scheme proposal is being developed by the ACTS FRAMES project to fulfill the requirements for terrestrial third-generation mobile radio system architecture and network issues are currently being discussed in the relevant standardization bodies. On one hand, the the GRAN approach envisages a single UMTS access part able to connect proposes to develop UMTS core network functionality able to handle multiple access networks, which can adopt different types of radio access techniques. The ACTS RAINBOW project presents a proposal where both approaches are unified in a system structure. From the network planning viewpoint, the major features of a third-generation mobile system are the wide variaety of services provided, the high number of customers expected (especially in urban and densely populated areas), the network architecture flexibility to allow different configurations to be deployment, and the advanced mobility management strategies. From this perspective the ACTS STORMS project is elaborating new planning methodologies tailored to the specific needs of a UMTS operator, and designing and developing a set of software modules covering the whole set of discplines involved in mobile network planning. |
| Nama Pengarang | : | - |
| Nama Majalah/Jurnal | : | IEEE Communications Magazine |
| Volume / Nomor Edisi | : | - |
| Nomor Halaman | : | 104-110 |
| Abstraksi Narasi | : | This article summarizes the EU`s activities in the ACTS program on mobile satellite communication, which are directed to the satellite component of UMTS. In this article the project INSURED, NEWTEST, SECOMS, SINUS, and TOMAS are briefly introduced, and their R&D work on the services implemented in the different test platforms, the network integration scenario into the UMTS network, the studies performed for the air interface, the mobile implemented, and the demonstrated applications are summarized. Furthermore, a new approach using neural networks for adaptive channel equalization and the concept for an EHF/Ka-Band system are introduced. |
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