 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| . |  |
. |
Another View Of The Internet's Fragility
The Internet may not be as vulnerable to centralized attacks as previously suggested, researchers in California reported Monday. Researchers have built mathematical models of the Internet and used them to study the robustness of the system. One type of model, called a "scale-free" network, portrays the Internet as being unaffected by random component failures, but vulnerable to targeted attacks on highly connected hubs. John Doyle and colleagues at the California Institute of Technology examined the abstract models and compared them with the organizing principles behind the Internet. They found that at the router level, the current Internet does not have most characteristics predicted by the scale-free models. The authors also found technological, economic and mathematical reasons explaining why a functioning Internet could not be dominated by high-traffic hubs that render the entire network vulnerable to attacks. The scientists propose a model involving optimization of tradeoffs under constraints. "Understanding complex networks in technology and biology is increasingly important, since seemingly arcane aspects of their robustness and fragility are having greater impacts on everyone's lives," Doyle says. The study appears in the online early edition of the Proceedings of the National Academy of Sciences. All rights reserved. � 2005 United Press International. Sections of the information displayed on this page (dispatches, photographs, logos) are protected by intellectual property rights owned by United Press International.. As a consequence, you may not copy, reproduce, modify, transmit, publish, display or in any way commercially exploit any of the content of this section without the prior written consent of United Press International. Related Links SpaceDaily Search SpaceDaily Subscribe To SpaceDaily Express 
Wireless World: Standards Of The Future
Chicago (UPI) Oct 03, 2005The future of wireless network standards - conventions that will gird the next generation of technologies for business mobility - is being debated by industry leaders, and new mobile communications devices may be available as soon as next year, experts told UPI's Wireless World.
|
|
| |||||||||
| The content herein, unless otherwise known to be public domain, are Copyright 1995-2016 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service. |
