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FDM for Wireless Communications Systems
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Hits: 12 |
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Date added: 12/13/2006 |
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Written by leading authority Ramjee Prasad, this timely new work offers a complete understanding of OFDM technology and applications in wireless communications systems, placing emphasis on wireless LANs and PANs. OFDM is a key technology for beyond 3G communications, promising robust, high capacity, high speed wireless broadband multimedia networks. In this practical resource, established and new technologies are explained clearly and comprehensively, from OFDM basics to a detailed account of a new technique, hybrid OFDM CDMA slow frequency hopping. |
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Wireless Attacks
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Hits: 48 |
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Date added: 12/15/2006 |
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As more and more home and business users adapt wireless technologies because of their ease of use and affordability, these devices are coming under attack by the malicious who are after your data and by the casual user looking for free bandwidth. In this paper, I will explain how wireless attacks are done on Wired Equivalency Privacy (WEP) networks, other common network attacks and then present several options to defend wireless networks. |
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Wireless Intrusion Detection Systems
hot!
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Hits: 50 |
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Date added: 12/16/2006 |
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Wireless has opened a new and exciting world for many of us. Its technology is advancing and changing every day and its popularity is increasing. The biggest concern with wireless, however, has been security. For some time wireless has had very poor, if any, security on a wide open medium. Along with improved encryption schemes, a new solution to help combat this problem is the Wireless Intrusion Detection System (WIDS). In the security and wireless world this has fast become a major part of securing a network. The next sections will cover details of what a WIDS is and can do, along with incident response, and creating a wireless policy. |
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Cryptanalysis of an anonymous wireless authenticat
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Hits: 7 |
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Date added: 12/17/2006 |
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Cryptanalysis of an anonymous wireless authentication and conference key distribution scheme
In this paper we analyse an anonymous wireless authentication and con- ference key distribution scheme which is also designed to provide mobile participants with user identification privacy during the conference call. The proposed scheme consists of three sub-protocols: the Call Set-Up Authenti- cation Protocol, the Hand-Off Authentication Protocol, and the Anonymous Conference Call Protocol. We show that the proposed scheme suffers from a number of security vulnerabilities. |
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Potential Security Vulnerabilities of a Wireless Network
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Hits: 6 |
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Date added: 12/18/2006 |
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Potential Security Vulnerabilities of a Wireless Network in a Military Healthcare Facility
The adaptation of wireless technology into the healthcare practitioner’s daily activities is changing the face of patient care every day. Doctors can now review any pertinent patient data from digital x-rays as they are taken, lab results as they are coded into the system and live patient vital statistic monitoring from their mobile PDA’s and Tablet PC’s at the point of care. Wireless technology adaptation has other benefits such as lowering long term cost of infrastructure maintenance and upgrades, and allowing for rapid changes to the network infrastructure versus wired technology. (Owens, Tachakra, Banitsas, Istepanian, 2001) As a system administrator in a large military healthcare facility, I am responsible for the security of all systems, network and patient data that is transmitted through that network. To keep up with the advanced implementations of wireless technology, understand the requirements I am bound by and the threats I may have to face, I started this research project for my own benefit as well as to share my findings with my staff. I will review the regulations that govern patient data in its electronic state, review a number of the current threats against a wireless network and recommend a possible wireless structure based on my research and policies that guide me. |
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