Wireless Network Security Partha Dasgupta and Tom Boyd Dept. of Computer Science and Engineering Fulton School of Engineering Arizona State University partha@asu.edu‚ tboyd@asu.edu Abstract Wireless networking is inherently insecure. From jamming to eavesdropping‚ from man-inthe middle to spoofing‚ there are a variety of attack methods that can be used against the users of wireless networks. Modern wireless data networks use a variety of cryptographic techniques such as encryption and authentication
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Chapter 3 Mobile Radio Propagation: Large-Scale Path Loss 1. (a) Explain the advantages and disadvantages of the 2-ray ground reflection model in the analysis of path loss. (b) What insight does the 2-ray model provide about large-scale path loss that was disregarded when cellular systems used very large cells? 2 .In a 2-ray ground reflected model‚ assume that must be kept below 6.261 radians for phase cancellation reasons. Assuming a receiver height of 2 m‚ and given a requirement that be less
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3G WIRELESS NETWORKS: OPPORTUNITIES‚ CHALLENGES AND COMPARISON BETWEEN 3G & 4G TECHNOLOGY By: Piyush Chandra EIILM UNIVERSITY‚ SIKKIM Email id:piyush.chandra20@gmail
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Wireless network refers to any type of computer network that uses wireless (usually‚ but not always radio waves) for network connections. It is a method by which homes‚ telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building‚ or as a connection between various equipment locations.[1] Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place
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interest in wireless sensor networks can be promptly understood simply by thinking about what they essentially are: a large number of small sensing self-powered nodes which gather information or detect special events and communicate in a wireless fashion‚ with the end goal of handing their processed data to a base station. Sensing‚ processing and communication are three key elements whose combination in one tiny device gives rise to a vast number of applications [A1]‚ [A2]. Sensor networks provide
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April 4th‚ 2006 A Technical Report: Wireless Sensor Networks and How They Work Prepared for Ann Holms University of California Santa Barbara Prepared by Ethan Culler-Mayeno University of California Santa Barbara Abstract Wireless sensor networks are a budding technology with the potential to change the way that we live. This report explains the workings of each network as a system of tiny computers called motes and the parts of the network. Furthermore‚ this report goes on to
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Communications * Consumer Electronics * Control Systems * Energy Conversion * Fuzzy Systems * Industrial Electronics * Instrumentation and Measurement * Intelligent Transportation Systems * Power Electronics * Power Systems * Robotics * VLSI Systems * Wireless Communications * MicroElectroMechanical Systems * Mechatronics Bio Medical * Bio Metrics - Finger Print‚ RFID‚ Voice * Robotics * Security System * Tele Communication * Communication * Unwired Zigbee‚ RFID‚ GSM‚ RF‚ Bluetooth‚ WIFI‚ GPS * Wired
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generation. It is the wireless technology that initially enabled Internet browsing over wireless networks. An example of 3G technologies is EV-DO. 4G is the generic abbreviation for 4th generation. It is the wireless technology that was designed to optimize data over wireless networks‚ improving the speed and efficiency of data delivery. LTE is one of the technologies that can be used to build a 4G network. This research will compare contrast 3G wireless networks to 4G networks. Compare
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local processing and wireless communication‚ a reality. Such nodes are called as sensor nodes. Each sensor node is capable of only a limited amount of processing. But when coordinated with the information from a large number of other nodes‚ they have the ability to measure a given physical environment in great detail. Thus‚ a sensor network can be described as a collection of sensor nodes which co-ordinate to perform some specific action. Unlike traditional networks‚ sensor networks depend on dense deployment
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WIRELESS SENSOR NETWORK (Reshma Bhat‚ 3rd sem‚EC) Abstract A Wireless Sensor network (WSN) consists of spatially distributed autonomous sensors to cooperatively monitor physical or environmental conditions‚ such as temperature‚ sound‚ vibration‚ pressure‚ motion or pollutants. The development of wireless sensor networks was motivated by military applications such as battlefield surveillance and are now used in many industrial and civilian application areas‚ including industrial
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