Cart (Loading....) | Create Account
Close category search window

Packet-switched local area networks using wavelength-selective station couplers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Grah, A. ; Newbridge Networks Corp., Kanata, Ont., Canada ; Todd, T.D.

Many LAN designs have been considered using passive star and passively tapped ring and bus architectures. Similar networks can also be designed using active wavelength-selective coupling devices such as those based on acoustooptics. A major advantage of actively coupled designs is that functions such as station slot synchronization are greatly simplified. In this paper, we consider the use of active couplers as station taps in networks that support packet-switched modes of operation. When used for this purpose, a major source of complexity results from the fact that at a given time, an unknown number of stations may be inserted into a particular wavelength-division multiplexing bus. For this reason, global slot-timing information cannot be derived from any one particular channel. As a result, when conventional protocols are used, the system may suffer from “retuning collision”, where a station destroys transit packets on other channels when the coupler is inadvertently retuned. We investigate protocols that can avoid this problem. In the simplest protocol, the overhead drastically restrict the range of physical parameters over which efficient operation can be achieved. The more sophisticated ones significantly extend this range so that metropolitan coverage is possible at reasonable data rates. In addition, we consider the use of active station taps in multichannel dual-bus networks. Capacity, delay, and power models are also derived, and comparisons are made with previous systems including passively tapped networks

Published in:

Networking, IEEE/ACM Transactions on  (Volume:8 ,  Issue: 2 )

Date of Publication:

Apr 2000

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.