Download or read book Evaluation of WLAN Security and Performance written by Alikira Richard and published by GRIN Verlag. This book was released on 2012-12-06 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2012 in the subject Computer Science - Internet, New Technologies, Kampala International University (School of postgraduate studies/computer department), course: Network security, language: English, abstract: This report addresses the reality of Wireless LAN security and performance. It provides an overview of security mechanisms and explains how security works in Wireless LAN networks. An in depth analysis of the Wired Equivalent Privacy (WEP), Wi-Fi protected access (WPA) and WPA2 standards is presented. The security vulnerabilities that exist in them are analyzed and explained. An experiment involving four devices (Dlink, Linksys, nanostationloco2 and a WBS) was done at Kampala international university. It was discovered from literature that most people prefer using WEP yet it is least secure. One study says 30% of all WLANs detected during network discovery experiment operate with WEP encryption. The study further proved that WEP can be compromised with 100% success. It was also discovered during the experiment that factors such as line of sight, obstruction, distance, antenna type, channel being used all affect network performance. The findings of this experiment can be used as guideline choosing the right encryption method and in designing a WLAN.
Download or read book 802 11 Wireless Networks written by Alan Holt and published by Springer Science & Business Media. This book was released on 2010-06-25 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique and practical text introduces the principles of WLANs based upon the IEEE 802.11 standards, demonstrating how to configure equipment in order to implement various network solutions. The text is supported by examples and detailed instructions.
Download or read book Performance Evaluation of Security Algorithms in a Wi Fi Testbed written by Kshitiz Saxena and published by LAP Lambert Academic Publishing. This book was released on 2012-05 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the IEEE 802.11 standard an optional encryption protocol called Wired Equivalency Privacy (WEP) is used to make wireless traffic as secure as wired network traffic. However it has been found that WEP suffers several weaknesses like a shared key weakness, no per-packet authentication, vulnerability to disassociation attacks, no user identification and authentication, no central authentication, authorization, and accounting support and vulnerability of RC4 to known plaintext attacks. To address these concerns, The Temporal Key Integrity Protocol (TKIP) was created to fix the weaknesses of Wired Equivalent Privacy (WEP). Wireless security is an exciting field of study, and we aim to find more weaknesses and new application areas of the attacks on TKIP. We hope that our work may contribute to motivate people to migrate their wireless security protocols to the more secure alternative CCMP.
Download or read book Performance Evaluation and Protection Management for Wireless Networks written by Avesh Kumar Agarwal and published by . This book was released on 2009 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: DoS attacks, protection management, security, performance, wireless networks.
Download or read book Wireless Network Security written by Yang Xiao and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book identifies vulnerabilities in the physical layer, the MAC layer, the IP layer, the transport layer, and the application layer, of wireless networks, and discusses ways to strengthen security mechanisms and services. Topics covered include intrusion detection, secure PHY/MAC/routing protocols, attacks and prevention, immunization, key management, secure group communications and multicast, secure location services, monitoring and surveillance, anonymity, privacy, trust establishment/management, redundancy and security, and dependable wireless networking.
Download or read book Improving the Performance of Wireless LANs written by Nurul Sarkar and published by CRC Press. This book was released on 2014-01-08 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there are countless books on wireless networks, few actually quantify the key performance-limiting factors of wireless local area networks (WLANs) and describe various methods for improving WLAN performance. Fulfilling these needs, Improving the Performance of Wireless LANs: A Practical Guide provides both theoretical background and empirical
Download or read book Improving the Performance of Wireless LANs written by Nurul Sarkar and published by CRC Press. This book was released on 2014-01-08 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there are countless books on wireless networks, few actually quantify the key performance-limiting factors of wireless local area networks (WLANs) and describe various methods for improving WLAN performance. Fulfilling these needs, Improving the Performance of Wireless LANs: A Practical Guide provides both theoretical background and empirical results for the optimum planning and deployment of high performance WLAN systems in different residential and commercial buildings. Useful to students, faculties, researchers, engineers, and network developers, this must-have book not only explains the fundamentals of WLAN systems, including WLAN features and standards, but also: Supplies strategic guidelines for WLAN system design, modeling, and performance evaluation Includes radio propagation and site measurements as well as simulations for various network design scenarios Discusses environmental effects on WLAN performance, protocol redesign for routing and MAC, and traffic distribution Contains numerous illustrations and examples, plus chapter summaries, review questions, reading lists, mini-projects, an extensive glossary, and a list of acronyms Examines emerging and future network technologies, such as next generation Wi-Fi (802.11ac), very high throughput Wi-Fi (802.11ad), wireless mesh networking (802.11s), emergency QoS (802.11u), and vehicle-to-vehicle communications (802.11p) Improving the Performance of Wireless LANs: A Practical Guide makes the teaching, learning, and researching of advanced wireless network design and performance a more active process by using practical tools and exercises to add life to this highly technical subject.
Download or read book Handbook of Wireless Local Area Networks written by Mohammad Ilyas and published by CRC Press. This book was released on 2005-05-25 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Wireless Local Area Networks: Applications, Technology, Security, and Standards captures the current state of wireless LANs, and serves as the single comprehensive reference on the subject. Addressing challenges related to the further development of WLAN technology, the Handbook covers the entire spectrum of topics from basic concepts t
Download or read book An IT and Security Comparison Decision Support System for Wireless LANs written by Kevin T. Reynolds and published by Universal-Publishers. This book was released on 2004 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Are all Wireless LANs equal? A network administrator is faced with a plethora of wireless services, complex radio issues, and products for wireless data. There are brand new protocols and products that could become obsolete a day after installation! Over 40% of all deployed WLANs do not even have minimum security activated, exposing the company's network and records to easy outsider access.The WLAN industry is characterized by rapidly changing, incomplete or proprietary standards, which can impact interoperability goals. There are complicated ownership costs, performance limitations, and security configurations that exist for WLANs which many network administrators may not understand or know how to compare. This dissertation presents a decision support system (DSS) that enables a novice network administrator to compare WLAN protocol capabilities, rank security configurations, rate IT cost efforts and use an extensive feature list. An in-depth discussion, concerning WLAN protocols, virtual private networks (VPNs), various encryption algorithms, 802.1X authentication mechanisms, and compilation of network selection criteria provides the foundation to construct a small DSS to aid WLAN network administrators. The DSS uses a set of rules to evaluate a series of potential requirements and provides pertinent WLAN decision-making information. The DSS environment allows a number of specific what-if scenarios to be reviewed and compared; multiple solutions can be tried without having to deal with the consequences. Alternative technologies are listed by the DSS to educate the decision maker about other options.
Download or read book Evaluation of Secure 802 1X Port Based Network Access Authentication Over 802 11 Wireless Local Area Networks written by Huseyin S. Ozturk and published by . This book was released on 2003-03-01 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since wireless technology has been used in Local Area Networks (LAN), our networks are easier to build and are more scalable and mobile than legacy structures. While providing these functionalities, Wireless LAN (WLAN)'s have some security vulnerabilities that should be addressed. Failing to examine the security risks of WLAN technology and to take the necessary countermeasures may result in unauthorized entry into the legacy local area networks and other attacks. A secure connection to an intranet, which holds critical data and applications, must be the utmost consideration in the effort to protect critical resources. This thesis builds an open-source test-bed for evaluating WLAN security protocols. Moreover, it investigates the suitability of the IEEE 802.1X standard to provide the required security framework to WLANs. This research determines that the IEEE 802.1X could enhance the security level in authentication and privacy by enabling the rekeying process but would not prevent Denial of Service attacks via unauthenticated management frames.
Download or read book Wireless Personal Area Networks written by Jelena Misic and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless Personal Area Networks provides an in-depth analysis of the recent IEEE 802.15.4 standard for low data rate wireless personal area networks (LR-WPANs), including suggestions to improve performance and comparisons with the related 802.15.1 (Bluetooth) standard. It assesses the suitability of the standard for the development and deployment of wireless sensor networks as well as providing guidance and insight into the relative advantages and disadvantages of various performance solutions. Wireless Personal Area Networks: Provides a comprehensive, in-depth look at the issues surrounding WPAN network operation and performance. Investigates multi-cluster networks and compares how they can be implemented. Analyzes the performance of a single cluster under different traffic and power management regimes including uplink vs. downlink traffic, acknowledged vs. unacknowledged traffic, saturation vs. non-saturation, and the like. Discusses security issues in WPANs such as different security threats, their impact on performance, standard security mechanisms, and security policies. Compares the IEEE 802.15.4 standard with the related Bluetooth IEEE 802.15.1 standard in terms of suitability for implementing wireless sensor networks. This reference is a valuable tool for developers and researchers getting acquainted with various aspects of IEEE 802.15.4 technology. Graduate students studying courses such as Performance Evaluation, Wireless Sensor Networks and Queuing Theory will also find this book very insightful.
Download or read book Performance Evaluation of Multi hop Ad hoc Wireless LANs written by Farshad Eshghi and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing advances in computing devices and mobile communications and the ever-increasing demand for network services have been fueling the interest in wireless packet services. Mobility, installation speed, simplicity, scalability, and less vulnerability to point-of-break problem, make wireless local area networks (WLAN) a good candidate for providing wireless packet services. Among the introduced WLAN standards, IEEE 802.11 due to its compatibility with the IEEE 802 protocol suite has become the dominating standard. The need for easy and spontaneous communications between proliferated mobile devices has attracted the attention of researchers and industry toward ad-hoc networks over the past few years. Ad-hoc networks can be used in situations where either there is no wired or wireless infrastructure present or, if present, it can not be used because of security, cost, or safety reasons. Due to the employed random back-off algorithm and system complexity, most of the works toward system performance evaluation resort to simulation. In order to optimally select system parameters to fulfill specific needs, a mathematical description of the system turns to be a lot helpful in observing the trend of any parameter changes made. In this thesis we mathematically model the distributed coordination function (DCF) mode of operation of IEEE 802.1I WLAN. Our model is based on the presentation of the system with a pair of one-dimensional state diagrams which accommodate variations of many input parameters. The model enables us to make optimum choices for the above parameters in different wireless channel qualities represented by the average bit error rate (BER). System performance is evaluated through three following measures: throughput, delay, and probability of fail to deliver of which the last two are crucial for real-time applications. Following that and aiming at multi-hop WLAN communications, we develop a detailed simulation environment spanning both medium access control (MAC) and physical (PHY) layers to investigate a greater number of phenomena such as hidden terminal, mobility, channel fading and path loss, etc. Results show that optimal selection of the system parameters can lead to considerable improvement in performance especially for time-sensitive applications.
Download or read book Guide to Wireless Network Security written by John R. Vacca and published by Springer Science & Business Media. This book was released on 2006-10-16 with total page 835 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major, comprehensive professional text/reference for designing and maintaining security and reliability. From basic concepts to designing principles to deployment, all critical concepts and phases are clearly explained and presented. Includes coverage of wireless security testing techniques and prevention techniques for intrusion (attacks). An essential resource for wireless network administrators and developers.
Download or read book Performance Evaluation of WLAN Based on IEEE 802 11e EDCF written by 白芳諺 and published by . This book was released on 2005 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Research on Wireless Security written by Yan Zhang and published by IGI Global. This book was released on 2008-01-01 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides research on security issues in various wireless communications, recent advances in wireless security, the wireless security model, and future directions in wireless security.
Download or read book CWSP Certified Wireless Security Professional Study Guide written by David D. Coleman and published by John Wiley & Sons. This book was released on 2016-09-26 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most detailed, comprehensive coverage of CWSP-205 exam objectives CWSP: Certified Wireless Security Professional Study Guide offers comprehensive preparation for the CWSP-205 exam. Fully updated to align with the new 2015 exam, this guide covers all exam objectives and gives you access to the Sybex interactive online learning system so you can go into the test fully confident in your skills. Coverage includes WLAN discovery, intrusion and attack, 802.11 protocol analysis, wireless intrusion prevention system implementation, Layer 2 and 3 VPN over 802.11 networks, managed endpoint security systems, and more. Content new to this edition features discussions about BYOD and guest access, as well as detailed and insightful guidance on troubleshooting. With more than double the coverage of the “official” exam guide, plus access to interactive learning tools, this book is your ultimate solution for CWSP-205 exam prep. The CWSP is the leading vendor-neutral security certification administered for IT professionals, developed for those working with and securing wireless networks. As an advanced certification, the CWSP requires rigorous preparation — and this book provides more coverage and expert insight than any other source. Learn the ins and outs of advanced network security Study 100 percent of CWSP-205 objectives Test your understanding with two complete practice exams Gauge your level of preparedness with a pre-test assessment The CWSP is a springboard for more advanced certifications, and the premier qualification employers look for in the field. If you’ve already earned the CWTS and the CWNA, it’s time to take your career to the next level. CWSP: Certified Wireless Security Professional Study Guide is your ideal companion for effective, efficient CWSP-205 preparation.
Download or read book Evaluation of Wireless Network Performance in a Multi nodes Environment written by Xiangle Xu and published by . This book was released on 2012 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
