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Information Technology

Networking

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  • Published Date
Displaying 651 - 675 of 833

Coding and Modulation for LMDS and Analysis of the LMDS Channel

October 1, 2000
Author(s)
J E. Hakegard
During the last two to three years, there has been considerable activity aimed towards deploying broadband wireless access systems. The U. S. Local Multipoint Distribution Services (LMDS) auctions in February-March 1998 of 1.3 GHz of spectrum between 27.5

Calibrating an Active Network Node

September 1, 2000
Author(s)
Y Carlinet, V Galtier, Kevin L. Mills, Stefan D. Leigh, Andrew L. Rukhin
tive Network technology envisions deployment of virtual execution environments within network elements, so that nonhomogeneous processing can be applied to network traffic. For management purposes, each node must have a meaningful understanding of resource

A Differentiated Optical Services Model for WDM Networks

February 1, 2000
Author(s)
Nada T. Golmie, T D. Ndousse, David H. Su
This paper addresses the issues of guaranteed and scalable end-to-end QoS in Metropolitan DWDM networks serving as transit networks for IP access networks. DWDM offering few wavelengths have in the past been deployed in the backbone network to upgrade

Web-Based Annotation Collaboration Tool

February 1, 2000
Author(s)
Wo L. Chang
The Web has emerged as a dominant mode of making information available and is increasingly seen as the medium to support collaboration across boundaries of geography and time. To realize this potential the Web must support viewing and manipulating of multi

A Bandwidth Guaranteed Multi-Access Protocol for WDM Local Networks

January 1, 2000
Author(s)
J S. Choi, Nada T. Golmie, David H. Su
In this paper, we propose a bandwidth guaranteed multi-access protocol for broadcast-and-select WDM local networks with a star topology. The proposed protocol is based on a combination of contention and reservation mechanisms for time slotted WDM networks

A Reliable Message Delivery Protocol for Mobile Agents

January 1, 2000
Author(s)
Mudumbai Ranganathan, M Bednarek, Douglas C. Montgomery
The abstractions and protocol mechanisms that form the basis for inter-agent communications can significantly impact the overall design and effectiveness of Mobile Agent systems. We present the design and performance analysis of a reliable communication

Differentiated Services Over Cable Networks

December 5, 1999
Author(s)
Nada T. Golmie, F Mouveaux, David H. Su
The current Medium Access Control interface specifications of the Multimedia Cable Network System (MCNS) project describe a best effort access service over cable networks. In this paper, we show that even though these specifications are mainly intended to

Dynamic Power-Conscious Routing for MANETs: An Initial Approach

November 1, 1999
Author(s)
M W. Subbarao
We develop an initial dynamic power-conscious routing scheme (MPR) that incorporates physical layer and link layer statistics to conserve power, while compensating for the channel conditions and interference environments at the intended receiver. The aim

Mobile Streams: A Middleware for Reconfigurable Distributed Scripting

October 4, 1999
Author(s)
Mudumbai Ranganathan, V Schaal, V Galtier, Douglas C. Montgomery
A large class of distributed applications follow the event-driven or reactive paradigm. Such applications can benefit from Mobile Agent technology by making it easy to add re-configurability, extensibility, and failure resilience features at an application

Air-Java: Networking for Smart Spaces

October 1, 1999
Author(s)
Kevin L. Mills
Increasingly people work and live on the move. To support this mobile lifestyle, especially as work becomes more intensely information-based, companies are producing various portable and embedded information devices. Concurrently, some interesting pico

Guest Editorial Article (Foreword)

October 1, 1999
Author(s)
Hamid Gharavi, L Hanzo
This article provides a short overview of past and present advancements in mobile communication systems, as well as identifying major challenges for the future generation of wireless technologies. Its main objective is to scan the special issue of the

Annotation Collaboration Tool via SMIL (ACTS)

July 26, 1999
Author(s)
Wo L. Chang
The Web has emerged as a dominant mode of making information available and is increasingly seen as the medium to support collaboration across boundaries of geography and time. To realize this potential, the Web must support viewing and manipulating of

The Apache/Linux Measurement Toolkit (ALMT) Using NIST-Developed Chip

June 15, 1999
Author(s)
D C. Tang, J H. Lin
This paper describes the development of the Apache-Linux Measurement Toolkit (ALMT), which is a highly accurate measurement tool for evaluating the performance of a Web server. The toolkit combines hardware and software to provide fine-grained data on the

A Queueing Model of a Spread Spectrum Multiple Access

June 1, 1999
Author(s)
Vladimir V. Marbukh, Nader Moayeri
We propose a queueing model of the reverse link from mobiles to the base station in a single cell of a cellular DS-CDMA system. Approximation of independent queues leads to a non-linear fixed point equation that describes globally or locally stable system

Re-Configurable Distributed Scripting

June 1, 1999
Author(s)
Mudumbai Ranganathan, L S. Andrey, V Schaal, J Favreau
A large class of distributed testing, control and collaborative applications are reactive or event driven in nature. Such applications can be structured as a set of handlers that react to events and that in turn can trigger other events. We have developed

Symposium on Computer-Supported Cooperative Work

June 1, 1999
Author(s)
Kevin L. Mills
IComputer-supported cooperative work (CSCW) holds great importance and promise for modern society. This paper provides an overview of seventeen papers comprising a symposium on CSCW. The overviewI also discusses some relationships among the contributions

A Framework for Throughput and Stability Analysis of a DS-CDMA Network

May 17, 1999
Author(s)
Vladimir V. Marbukh, Nader Moayeri
We propose a framework for throughput and stability analysis of a Direct Sequence Code Division Multiple Access (DS-CDMA) network. Given chip rate, processing gains, packet structure, coding scheme, and the characteristics of the wireless channel, we

Modem Design Issues in LMDS Systems

May 8, 1999
Author(s)
J E. Haakegaard
During the last 2-3 years, there has been considerable activity aimed towards deploying broadband wireless access systems. The US Local Multipoint Distribution Services (LMDS) auctions in February-March 1998 of 1.3 GHz of spectrum between 27.5 GHz and 31.3
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