PPT-Wireless Physical Layer Security:

How to Date a Girl with Her Boyfriend on the Same Table Zhu Han Department of Electrical and Computer Engineering University of Houston Houston TX USA Outline Overview of Physical Layer S. Class Contents. Cordless systems. . Time Division Duplex. DECT Frame Format. DECT Operation. Wireless Local Loop. Role of WLL. Class Contents. Propagation Considerations for WLL. Multichannel Multipoint Distribution Service. 1. Outline. 2. Overview. Physical Security in Wired Networks . Physical . Security. . in . Wireless Networks. Overview. 3. Networks are made up of devices and communication links. Devices and links can be physically threatened. and Actuator Networks . with Packet . Loss. Ahmed . Alhafdhi. Feng. Xia*, . Xiangjie. Kong, and . Zhenzhen. . Xu. School. of Software, Dalian University of Technology, Dalian 116620, China. Agenda. Access. Networks. Core Networks. The Current Internet: Connectivity and Processing. Transit Net. Transit Net. Transit Net. Private. Peering. NAP. Public. Peering. PSTN. Regional. Wireline. Regional. Voice. Why wireless?. Wifi. , which is short for wireless . fi. … something, allows your computer to connect to the Internet using magic.. -Motel 6 commercial. 2. … but it comes at a price. Wireless networks present security risks far above and beyond traditional wired networks. Access. Networks. Core Networks. The Current Internet: Connectivity and Processing. Transit Net. Transit Net. Transit Net. Private. Peering. NAP. Public. Peering. PSTN. Regional. Wireline. Regional. Voice. By Roger Kung. Wireless Security?. Prevention of unauthorized access or damage to computers using wireless networks.. Wi-Fi Alliance (http://www.wi-fi.org. /). WEP. WEP. WPA. Free Tools. NetStumbler. Prabhaker Mateti. Wright State University. www.wright.edu/~pmateti. 2. Talk Outline. Wireless LAN Overview. Wireless Network Sniffing. Wireless Spoofing. Wireless Network Probing. AP Weaknesses. Denial of Service. David Tipper, Ph.D.. Telecommunications and Networking Program. University of Pittsburgh. tipper@tele.pitt.edu. Wireless Background. Wireless Communication System: . Any electrical communication system that uses a naturally occurring communication channel, such as air, water, earth. Prepared by :. Dr. Adel . Soudani. & Dr. . Mznah. Al-. Rodhaan. . Lecture 1. CSC- 329 Computer Network Physical Layer. 2-. 2. Outline. . 2. .1 Analog and Digital. 2. .2 . Transmission Media. and Practice. Fourth Edition. By: William Stallings and Lawrie Brown. VPNs. Virtual Private Network (VPN):. A means of carrying private traffic over a public network. Uses link encryption to give users sense that they are operating on a private network when they are actually transmitting over a public network. .. Wireless is Global. The standard radio frequencies run in the range of 3Hz to 300 GHz. There is other frequencies used for example the 222 MHz through 225 MHz is for amateur radio. If your interested in what frequencies your country is using for what? Take a look at the frequencies. The Benefits of Reading Books,Most people read to read and the benefits of reading are surplus. But what are the benefits of reading. Keep reading to find out how reading will help you and may even add years to your life!.The Benefits of Reading Books,What are the benefits of reading you ask? Down below we have listed some of the most common benefits and ones that you will definitely enjoy along with the new adventures provided by the novel you choose to read.,Exercise the Brain by Reading .When you read, your brain gets a workout. You have to remember the various characters, settings, plots and retain that information throughout the book. Your brain is doing a lot of work and you don’t even realize it. Which makes it the perfect exercise! Preliminaries, Split Connection. COS . 463. : Wireless . Networks. Lecture. . 2. Kyle Jamieson. [Various parts adapted from S. Das, . B.. . Karp,. . N.. . Vaidya. ]. Layering . and the End-to-End Argument.