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Wireless LAN (WLAN) Resources
By most accounts, Wireless Local Area Network (WLAN) first began in 1971 when a wireless computer network was implemented (dubbed the AlohaNet) at the University of Hawaii. In 1990 AT&T, developed WaveLAN, a Direct Sequence Spread-Spectrum (DSSS) that exhibited superior interference immunity. After many versions of designs using discrete components, in 1996, Harris (now Intersil) introduced their PRISM WLAN chipset. Needing a standard to guarantee interoperability, in 1997, the Institute for Electrical and Electronics Engineers published the first specification for IEEE 802.11 - 2.4 GHz, 2 Mbps, using Frequency Hopping (FH) and DSSS. In 1998, the ETSI HomeRF standard was developed for 2.4 GHz, 1.6 Mbps, Wideband Frequency Hopping. 1999 saw the publication of the IEEE 802.11b standard - 2.4 GHz, 11 Mbps, DSSS. With the unlicensed 2.4 GHz ISM band being crowded with existing WLAN, Bluetooth, ZigBee and microwave ovens, and with a need for higher datarates, in 1999 the IEEE released its 802.11a standard, which moved up into the 5 GHz ISM band, and provided 54 Mbps, OFDM data. In 2000, the ETSI HiperLAN2 emerged - 5 GHz, 54 Mbps, OFDM, connection-oriented QoS. Alas, the difficulty with mass-producing high yielding, inexpensive systems at 5 GHz forced, combined with revolutionary modulation methods, drove the IEEE in 2003 to provide a new high datarate āgā spec for operation back in the 2.4 GHz band, but offering the same datarate as the āaā spec 802.11g - 2.4 GHz, 54 Mbps, OFDM, compatible with 802.11b. Now, 802.11n is in the works for 2.4 GHz operation yielding greater than 100 MHz datarates.
Information about an ongoing AVS project to contribute 802.11 wireless LAN (WLAN) support for the GNU/Linux operating system and other Open Source platforms.
Bringing together users in the Capital Region to discuss and learn about wireless networks, wireless networking and 802.11x technologies such as 802.11a, 802.11b & 802.11g, etc.
Specializing in CDMA, WISP and WLAN solutions as well as CW and TDMA used for drive-studies, antenna alignment, wardriving, survey sweeping, indoor & outdoor walk-about RF studies.
802.1X and WPA solutions from Meetinghouse help organizations secure their wired and wireless LANs with interoperable Layer 2 standards-based software.
Advancing the science of computer networks especially as they pertain to the future wireless networks and their need to transport a maze of multimedia, voice and data applications across the globe, from the University of Massachusetts.
Links & information on basic theory of WLANs, to the design of WLANs, through the selection of vendor hardware and system architecture, to discussions of WLAN security issues.
The Wireless Networking Industries information source - Find out how about wireless LAN fundamentals, proper wireless LAN design, and advanced wireless network security.
Linux Wireless LAN Howtos, wireless LAN drivers web pages, wireless Linux software on the Internet, security software for your wireless LAN, public wireless Linux networks, wireless LAN hardware (surveys and reviews).
Wireless LAN (WLAN) information, news, events and happenings, conferences, announcements & more. Other Wireless Technologies such as Bluetooth, UWB, fixed wireless & similar topics may also be featured.
Not-for-profit Amateur and Community Wireless Local Area Networks (WLANs) using Open Spectrum Technology.
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