PPT-Wireless Network Instabilities in the Wild:

Prevalence App nonResilience and OS Remedy ZeQi Lai Yong Cui Yimin Jiang Xiaomeng Chen Y Charlie Hu Kun Tan Minglong Dai Kai Zheng Wireless n etwork i. Lenin Ravindranath. Calvin Newport, Hari Balakrishnan, Sam Madden. Massachusetts Institute of. Technology. Big Changes in Access Devices. 172M smartphones sold worldwide in 2009. 25% of US phone market; 50% in two years. 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. Lenin Ravindranath. Calvin Newport, Hari Balakrishnan, Sam Madden. Massachusetts Institute of. Technology. Big Changes in Access Devices. 297M smartphones sold worldwide in 2010. 31% of US phone market; 50% by this year. 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. N . STORAGE ROUTER. Wireless & Router Product Div.. May. . 28th, 2008. D-Link Confidential. The Design. The Market . (Product Position and Target Market). Selling . Points. Competitive Advantages. Lesson . 13. Reminder. As a reminder, remember that the tools and techniques that you learn this semester are only to be used on systems you are authorized to perform scans/tests on.. Authorization doesn’t simply mean that you are an authorized user but rather that:. In this . chapter you . will learn how . to:. Describe . the basics of . wireless. networking. Explain . the differences between . wireless. networking standards. Configure . wireless. . networks. 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. Benn Greenstein. Ramakrishna . Gummadi. Jeffrey Pang. Mike Y. Chen. Tadayoshi. Kohno. Srinivasan. . Seshan. David . Wetherall. Presented by:. Ryan . Genato. Overview. Background. The Paper. Introduction. The Impact of Competition and . Financialization. on Wireless Workers . CWA Wireless Workers Conference. November 2016, San Antonio, TX. The Wireless Communications Industry is Dynamic. Wireless coverage approaching 100%.. Wireless The Headache You Can’t See… Part Deux ! Vikas Khanna V.P. Broadband Technologies Covad Communications vikas[at]covad.com Agenda Why Fixed-Wireless ? Technology Pre-WiMax (non-standardized) .. 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. CS 352, Lecture 24.1. http://www.cs.rutgers.edu/~sn624/352. Srinivas Narayana. 1. Link layer. Application. Transport. Network. Link. …. FTP. HTTP. SMTP. DNS. TCP. UDP. IP. 802.11. 802.3. ATM. HTTPS.