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A Standardization Plan for Broadband Access Network Transport

Nama Pengarang : Yoichi Maeda, Reinhold Feigel, Sharon Kingman, Kristie Richardson, Karen Liu, John Ryan, Medard, Muriel , Steven Lumetta, Jeremy Lawrence, Ayan Banerjee dkk, John M. Khoury, Kadaba R. Lakshmikumar, John Koulouris, Philippe Verveer, Yoshiharu Takizawa, John Hunter, Ola Toftemo, Roald Ekholdt, Paul Bonenfant, Antonio Rodriguez Moral, Murali Krishnaswamy, Eytan Modiano, Philip J. Lin
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 166-172
Abstraksi Narasi : ITU-T has designed Study Group 15 as the Lead Study Group on access network transport, with the mandate to define and maintain the overall framework for standards, in collaboration with other Study Groups and standards bodies, to coordinate, assign, and prioritize studies done by the Study Groups, and to ensure the development of consistent, complete, and timely Recommendations. This article gives a brief overview of existing and ongoing standardization activities within ITU-T in the area of access network transport, focusing on broadband access systems such as xDSL and optical access networks.

The Open Services Gateway Initiative: An Introductory Overview

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 110-114
Abstraksi Narasi : The Open Services Gateway Initiative is a consortium of more than 80 companies from around the world working together to create an infrastructure to enable the deployment of services over wide area networks to local networks and devices. In this article we outline the benefits of OSGi, typical markets, and example use cases. The article goes on to discuss the architecture of the system and the capabilities that are afforded by the latest release. The article concludes with a brief glimpse into the future specifications that are expected to result from the OSGi initiative.

Terminal Independent Mobility for IP (TIMIP)

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 34-41
Abstraksi Narasi : This article presents the Terminal Independent Mobility for IP (TIMIP), which is a new architecture for IP mobility in wireless access networks. TIMIP is based on principles similar to those in the CIP and HAWAII architectures proposed at IETF and equally suited for micromobility scenarios. With TIMIP, terminals with legacy IP stacks have the same degree of mobility as terminals with mobility-aware IP stacks. Nevertheless, it still uses MIP for macromobility scenarios. In order to support seamless handoff, TIMIP uses context-transfer mechanisms compatible with currently in discussion at the IETF SeaMoby group.

Securing the Wireless Internet

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 68-74
Abstraksi Narasi : Internet-enabled wireless devices continue to proliferate and are expected to surpass traditional Internet clients in the near future. This has opened up exciting new opportunities in the mobile e-commerce market. However, data security and privacy remain major concerns in the current generation of "wireless Web" offerings. All such offerings today use a security architecture that lacks end-to-end security. This unfortunate choice is driven by perceived inadequacies of standard Internet security protocols like SSL on less capable CPUs and low-bandwidth wireless links. This article presents our experiences in implementing and using standard security mechanisms and protocols on small wireless devices. We have created new classes for the Java 2 Micro-Edition plantform that offer fundamental cryptographic operations such as message digests and ciphers as well as higher level security protocols like SSL. Our results show that SSL is a practical solution for ensuring end-to-end security of wireless Internet transactions even within today`s technological constraints.

RSVP Extensions for Real-Time Services in Wireless Mobile Networks

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 52-59
Abstraksi Narasi : Currently, the RSVP model, which is efficient resource reservation in the fixed endpoints, becomes invelid under host mobility. In this article, we investigate the problems of standard RSVP in providing real-time services in wireless mobile networks. We also observe carefully how to interoperate IntServ services over DiffServ networks, and how to map IntServ QoS parameters into a wireless link. We then identify the advantages and drawbacks of the existing RSVP proposals to support QoS under both micromobility and macromobility. We finally propose a dynamic resource allocation scheme for reducing service disruption of real-time applications due to frequent mobility of a host.

Optimizing Internet Flows over IEEE 802.11b Wireless Local Area Networks: A Performance-Enhancing Proxy Based on Forward Error Correction

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 60-67
Abstraksi Narasi : The success of the IP and associated technologies has led to new challenges as we try to use it more widely in everyday communications. In particular, the drive toward wireless and highly heterogeneous infrastructures supporting IP services transparently and independent of the underlying physical layer is a challenge. In this context, this article focuses on introducing an implementation of a generic performance enhancing proxy, called Wireless Adaptation Layer, and particularly its forward error control enhancement module. The error control module is a potentially important tool for achieving better UDP and TCP performance over the inherently unreliable wireless channels, and providing some adaptation for that. In order to assess the benefits and drawbacks of the selected design, we have also conducted some performance measurements over IEEE 802.11b WLANs.

Mobility Management Incorporating Fuzzy Logic for a Heterogeneous IP Environment

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 42-51
Abstraksi Narasi : The next generation in mobility management will enable different mobile networks to interoperate with each other to ensure terminal and personal mobility and global portability of network services. However, in order to ensure global mobility, the deployment and integration of both satellite and terrestrial components are necessary. This article is focused on issues related to mobility management in a future mobile communications system, in a scenario where a multisegment access network is integrated into an IP core network by exploiting the principles of Mobile IP. In particular, attention is given to the requirements for location, address, and handover management. In a heterogeneous environment, the need to perform handover between access networks imposes particular constraints on the type of information available to the terminal and network. In this case, consideration will need to be given to parameters other than radio characteristics, such as achievable quality of service and user preference. This article proposes a new approach to handover management by applying the fuzzy logic concept to a heterogeneous environment. The article concludes with the presentation of mobility management signaling protocols.

Home Networks: A Standards Perspective

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 78-85
Abstraksi Narasi : An overview of home networks, as defined by the Home Networking and IT (HNIT) division of the Consumer Electronics Association (CEA) [1], is presented in this paper. HNIT`s membership includes consumer electronics executives, marketing and market research professionals, engineers, and standards developers, which provide a broad perspective on this subject. The article first introduces the rational behind the definition. From that baseline, it moves on to review some of the most critical issues home networks must address so as to meet the expectations of content and service providers-- and ultimately those of the consumer. With that foundation, the article provides an overview of each of the major home networking protocols and standards, as well as their respective strengths and weaknesses. Also included is a discussion of the interrelationships between the major standards and industry specifications: in other words, how they will work together to create a seamless home network environment.

Home Network with Universal Plug and Play

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 104-109
Abstraksi Narasi : In this article we present an overview of the Universal Plug and Play (UPnP) technology and the UPnP Forum, the multicompany organization that develops parts of the architecture. A technical description of the technology is presented, followed by three illustrative usage cases where it could be applied in home networking environments. Finally, the authors describe the benefits UPnP technology can provide in home networking and briefly discuss potential future work in this area.

High-Rate Wireless Personal Area Networks

Nama Pengarang : -
Nama Majalah/Jurnal : IEEE Communications Magazine
Volume / Nomor Edisi : -
Nomor Halaman : 96-102
Abstraksi Narasi : This article presents an overview of high-rate wireless personal area networks, its targeted applications, and a technical overview of medium access control and physical layers, and system performance. The high-rate WPANs operate in the unlicensed 2.4 GHz band at data rates up to 55 Mb/s that are commensurate with distribution of high-definition video and high-fidelity audio. An industry effort to create a MAC and PHY layer standard specification for high-rate WPANs has been ongoing in the IEEE 802.15.3 High Rate WPAN Task Group.
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