Farpoint Group Research Shows the Dramatic Impact of WiFi Interference.Common Enterprise and Household Devices Can Have Dramatic Impact On WiFi Networks See wireless Ethernet and 802.11. Running Data, Voice or Video Applications GERMANTOWN, Md. -- Summary Farpoint Group's research validates other industry research on the effects of interference, and points to a need in the marketplace for solutions to help manage interference in WiFi network deployments. Core News Facts * Farpoint Group, a leading advisory firm focused on wireless technologies, today released three additional reports detailing the results of their study on WiFi interference. * Farpoint Group found that common wireless devices and equipment frequently caused interference to wireless-LAN traffic. For example, microwave ovens caused throughput reductions of 62%, Bluetooth headsets caused approximately 20% reduction in throughput and some household devices such as cordless phones A wireless telephone that transmits to and receives signals from a base station within a range of a few hundred feet. Cordless phones are for local use and cannot travel long distances as can cellphones and satellite phones. See DECT and multihandset cordless. caused a 100% reduction in throughput. * For voice, Farpoint Group found that most interfering devices, such as microwave ovens and cordless phones, caused enough impairment Impairment 1. A reduction in a company's stated capital. 2. The total capital that is less than the par value of the company's capital stock. Notes: 1. This is usually reduced because of poorly estimated losses or gains. 2. that voice quality was severely impacted. * For video, Farpoint Group found that most types of interfering devices could cause pixelation This article is about the graphics artifact. For the stop motion animation technique, see pixilation. For the censorship method, see pixelization. In computer graphics, pixelation and/or an unwatchable picture. Quotes attributable to Craig Mathias, Farpoint Group * "As wireless LANs A local area network that transmits over the air typically in the 2.4 GHz or 5 GHz unlicensed frequency band. It does not require line of sight between sender and receiver. Wireless base stations (access points) are wired to an Ethernet network and transmit a radio frequency over an area become the default connectivity for essentially all users in enterprise environments (and in the home as well), the interference issue will become more acute." * "Lower throughput almost always impacts user productivity. It behooves any enterprise-class installation to have the tools necessary to recognize, characterize and remedy radio-frequency interference." Quote attributable to Mike Brown, IT Administrator, Arizona State University Arizona State University, at Tempe; coeducational; opened 1886 as a normal school, became 1925 Tempe State Teachers College, renamed 1945 Arizona State College at Tempe. Its present name was adopted in 1958. * "When WiFi interference occurs, it can manifest itself in strange ways. Interference sources often are turned on briefly, and move between locations. If you don't have the right tools, it's quite difficult to diagnose diagnose /di·ag·nose/ (di´ag-nos) to identify or recognize a disease. di·ag·nose v. 1. To distinguish or identify a disease by diagnosis. 2. , and convince the users whose wireless gadgets are causing the interference." Links to Farpoint Group Research * The Effects of Interference on General WLAN See wireless LAN. WLAN - wireless local area network Traffic * The Effects of Interference on Video Over WiFi * The Effects of Interference on VoFi Traffic http://www.cognio.com/farpoint/effectsofinterference.html **These papers are available on the Light Reading and Computerworld Web sites, as well as other locations. Multimedia and Related Stories * Jupiter Research: An overview of the experiences and pain-points of consumer WiFi home network owners http://www.autocell.com/news/docs/jupiter_interference_ study.pdf * WiFi Interference, are cars the culprits? http://www.youtube.com/watch?v=A0oF0eq6mPI * Mesh: Interference in the City? http://www.unstrung.com/document.asp?doc_id= 104937&f_src=techweb * Keeping Interference Out http://www.wirelessweek.com/article/CA6387870.html?spacedesc =Features * Sides chosen in Logan WiFi battle http://www.boston.com/business/globe * City WiFi could lead to interference issues http://www.mlive.com/mbusinessreview/west/index.ssf?/base/ test/1145520014178060.xml&coll=12&thispage=1 * WiFi Interference: 3 Things New WISPs Need to Know http://www.isp-planet.com/fixed_wireless/business/2001/ wifi_interference_part2.html (Due to the length of the URL URL in full Uniform Resource Locator Address of a resource on the Internet. The resource can be any type of file stored on a server, such as a Web page, a text file, a graphics file, or an application program. addresses above, it may be necessary to copy and paste To copy files from one location to another or to copy text and images from one document to another. All modern operating systems and applications have a copy and paste capability that is typically selected from an Edit menu. See cut and paste and Win Copy between windows. the hyperlinks into your Internet browser's URL address field. Remove the extra space if one exists.) |
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