Metropolitan Area Packet Radio Networks
Author | : Kenneth John Zdunek |
Publisher | : |
Total Pages | : 336 |
Release | : 1991 |
Genre | : |
ISBN | : |
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Author | : Kenneth John Zdunek |
Publisher | : |
Total Pages | : 336 |
Release | : 1991 |
Genre | : |
ISBN | : |
Author | : Clifford A. Lynch |
Publisher | : Pergamon |
Total Pages | : 320 |
Release | : 1987 |
Genre | : Computers |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 44 |
Release | : 1988-08-22 |
Genre | : |
ISBN | : |
For more than 20 years, Network World has been the premier provider of information, intelligence and insight for network and IT executives responsible for the digital nervous systems of large organizations. Readers are responsible for designing, implementing and managing the voice, data and video systems their companies use to support everything from business critical applications to employee collaboration and electronic commerce.
Author | : |
Publisher | : |
Total Pages | : 190 |
Release | : 2001-01-16 |
Genre | : |
ISBN | : |
PCMag.com is a leading authority on technology, delivering Labs-based, independent reviews of the latest products and services. Our expert industry analysis and practical solutions help you make better buying decisions and get more from technology.
Author | : Daniel Minoli |
Publisher | : McGraw Hill Professional |
Total Pages | : 698 |
Release | : 2002 |
Genre | : Computers |
ISBN | : 9780071396868 |
Covers the realities of implementation in an incredible technology.
Author | : Tomasz Imielinski |
Publisher | : Springer |
Total Pages | : 736 |
Release | : 2007-08-26 |
Genre | : Computers |
ISBN | : 0585296030 |
The rapid development of wireless digital communication technology has cre ated capabilities that software systems are only beginning to exploit. The falling cost of both communication and of mobile computing devices (laptop computers, hand-held computers, etc. ) is making wireless computing affordable not only to business users but also to consumers. Mobile computing is not a "scaled-down" version of the established and we- studied field of distributed computing. The nature of wireless communication media and the mobility of computers combine to create fundamentally new problems in networking, operating systems, and information systems. Further more, many of the applications envisioned for mobile computing place novel demands on software systems. Although mobile computing is still in its infancy, some basic concepts have been identified and several seminal experimental systems developed. This book includes a set of contributed papers that describe these concepts and sys tems. Other papers describe applications that are currently being deployed and tested. The first chapter offers an introduction to the field of mobile computing, a survey of technical issues, and a summary of the papers that comprise sub sequent chapters. We have chosen to reprint several key papers that appeared previously in conference proceedings. Many of the papers in this book are be ing published here for the first time. Of these new papers, some are expanded versions of papers first presented at the NSF-sponsored Mobidata Workshop on Mobile and Wireless Information Systems, held at Rutgers University on Oct 31 and Nov 1, 1994.
Author | : |
Publisher | : |
Total Pages | : 304 |
Release | : 1999 |
Genre | : Mobile computing |
ISBN | : |
Author | : Timothy Jason Shepard |
Publisher | : |
Total Pages | : 81 |
Release | : 1995 |
Genre | : Electronic noise |
ISBN | : |
Abstract: "This thesis addresses the problems of managing the transmissions of stations in a spread-spectrum packet radio network so that the system can remain effective when scaled to millions of nodes concentrated in a metropolitan area. The principal difficulty in scaling a system of packet radio stations is interference from other stations in the system. Interference comes both from nearby stations and from distant stations. Each nearby interfering station is a particular problem, because a signal received from it may be as strong as or stronger than the desired signal from some other station. Far-off interfering stations are not individually a problem, since each of their signals will be weaker, but the combined effect may be the dominant source of interference. The thesis begins with an analysis of propagation and interference models. The overall noise level in the system (mainly caused by the many distant stations) is then analyzed, and found to remain manageable even as the system scales to billions of nodes. A scheme for designing a scalable packet radio network is then presented. Included is a method of scheduling packet transmissions to avoid collisions (caused by interference from nearby stations) without the need for global coordination or synchronization. Simulations of a system of one thousand stations are used to verify and illustrate the methods used. A method of choosing routes (minimum-energy routes) is demonstrated in simulation to produce a fully connected and functional network for one hundred and one thousand randomly placed stations. Unfortunately, congestion as the system scales is unavoidable if the traffic is not limited to some degree of locality. If traffic is limited to a few hops, then for a large system the techniques presented in this thesis are superior to ideal time division multiplexing of a clear channel."
Author | : Gregory Kipper |
Publisher | : CRC Press |
Total Pages | : 239 |
Release | : 2007-02-26 |
Genre | : Computers |
ISBN | : 1040065147 |
Security is always a concern with any new technology. When we think security we typically think of stopping an attacker from breaking in or gaining access. From short text messaging to investigating war, this book explores all aspects of wireless technology, including how it is used in daily life and how it might be used in the future. It provides a one-stop resource on the types of wireless crimes that are being committed and the forensic investigation techniques that are used for wireless devices and wireless networks. The author provides a solid understanding of modern wireless technologies, wireless security techniques, and wireless crime techniques, and shows how to conduct forensic analysis on wireless devices and networks. Each chapter, while part of a greater whole, is self-contained for quick comprehension.
Author | : Watfa, Mohamed |
Publisher | : IGI Global |
Total Pages | : 384 |
Release | : 2010-05-31 |
Genre | : Business & Economics |
ISBN | : 161520914X |
"This book tackles the prevalent research challenges that hinder a fully deployable vehicular network, presenting a unified treatment of the various aspects of VANETs and is essential for not only university professors, but also for researchers working in the automobile industry"--Provided by publisher.