|
| |
| | Making IEEE 802.11 Networks Enterprise-Ready |
 | | These security features can also be applied to other IEEE 802 networks to improve network-wide access security; for example, 802.3 Ethernet. |
|
http://www.microsoft.com/windows2000/techinfo/administration/security/wirelessec.asp
(194 words)
|
|
| |
| | IEEE 802.11 - Wikipedia, the free encyclopedia |
 | | Channels 10 and 11 are the only channels which work in all parts of the world, because Spain hasn't licensed channels 1 to 9 for 802.11b operation. |  | | The spectral mask for 802.11b requires that the signal be attenuated by at least 30 dB from its peak energy at ±11 MHz from the center frequency, and attenuated by at least 50 dB from its peak energy at ±22 MHz from the center frequency. |  | | Although the statement that channels 1, 6, and 11 are "non-overlapping" is incomplete, the 1, 6, 11 guideline has merit. |
|
http://en.wikipedia.org/wiki/IEEE_802.11
(2948 words)
|
|
| |
| | IEEE 802.11 - Wikipedia, the free encyclopedia |
 | | The IEEE set up a dedicated task group to create a replacement security solution, 802.11i (previously this work was handled as part of a broader 802.11e effort to enhance the MAC layer). |  | | On January 19, 2006, the IEEE 802.11n Task Group approved the Joint Proposal's specification, based on EWC's specification as the confirmed 802.11n proposal. |  | | The original version of the standard IEEE 802.11 released in 1997 specifies two raw data rates of 1 and 2 megabits per second (Mbit/s) to be transmitted via infrared (IR) signals or in the Industrial Scientific Medical frequency band at 2.4 GHz. |
|
http://en.wikipedia.org/wiki/IEEE_802.11
(3696 words)
|
|
| |
| | What is 802.11B |
 | | With 802.11b WLANs, mobile users can get Ethernet levels of performance, throughput, and availability. |  | | However when devices move beyond the optimal range for 11 Mbps operation, or if substantial interference is present, 802.11b devices will transmit at lower speeds, falling back to 5.5, 2, and 1 Mbps. |  | | For example, if the network requirement is for high performance (5.5 Mbps or 11 Mbps) and complete coverage, long range at lower network speeds (1 Mbps and 2 Mbps) may make it difficult to employ a channel reuse pattern while maintaining high performance. |
|
http://www.pulsewan.com/data101/802_11_b_basics.htm
(5298 words)
|
|
| |
| | 802.11 Routers |
 | | It provides 11 Mbps data rate and all WLAN Router functions, including DHCP server, IP sharing, Firewall, VPN pass through,... |
|
http://www.devbuzz.com/mp/wireless_routers.asp
(463 words)
|
|
| |
| | Wireless LAN Security Site |
 | | This means that IEEE 802.1X can scale from speeds of 11 Mbps (802.11) to 10+ Gbps, and can be enabled on existing switches with a firmware upgrade, without the need to buy new hardware. |  | | Since the IEEE 802.11 Task Group I security work had only just gotten underway at the time that the IEEE 802.1X standard was approved, 802.1X does not describe how the 802.1X and 802.11 state machines are to be coupled. |  | | IEEE 802 and IETF communicate regularly relating to IETF dependencies of IEEE 802 working groups. |
|
http://www.drizzle.com/~aboba/IEEE
(3452 words)
|
|
| |
| | IEEE 802.11 Wireless Local Area Networks |
 | | In IEEE 802.11, carrier sensing is performed at both the air interface, referred to as physical carrier sensing, and at the MAC sublayer, referred to as virtual carrier sensing. |  | | The portal is a logical entity that specifies the integration point on the DS where the IEEE 802.11 network integrates with a non-IEEE 802.11 network. |  | | The standard IEEE 802.11 frame format is illustrated in Fig. |
|
http://www.comsoc.org/ci1/private/1997/sep/Crow.html
(8566 words)
|
|
| |
| | Introduction to IEEE 802.11 - Intelligraphics |
 | | Typically the 802.11 functions are implemented in the hardware and software of a network interface card (NIC). |  | | Wireless networking has a promising future with 802.11 leading the way as the standard for adoption in local networking environments. |  | | An extension to the 802.11 architecture (802.11a) defines different multiplexing techniques that can achieve data rates up to 54 Mbps. |
|
http://www.intelligraphics.com/articles/80211_article.html
(3114 words)
|
|
| |
| | IEEE 802.11 |
 | | IEEE 802.11 is a popular specification for unlicensed wireless computer networking. |  | | This article is about the radio-based wireless computer networking system defined by the IEEE 802.11 standard. |  | | IEEE is the Institute for Electrical and Electronics Engineers, and the use of equipment based on the 802.11b standard is becoming a very inexpensive and popular way for computers to communicate over radio, especially over short distances such as within an office building. |
|
http://www.qsl.net/kk7dv/uarc/ieee802
(935 words)
|
|
| |
| | IEEE 802.11 - Internet-ional Articles v. 1 no. 1 |
 | | IEEE 802.11a is seen by some in the industry as the future of IEEE 802.11. |  | | The data rates specified by IEEE 802.11a are 6, 9, 12, 18, 24, 36, 48, and 54 Mbps, with support for 6, 12, and 24 Mbps as a man-datory requirement. |  | | Up to this point IEEE 802.11 could be considered an absolute success; however, security of IEEE 802.11 is not quite on par with other aspects of the standard. |
|
http://www.isoc.org/pubs/int/cisco-1-1.html
(4193 words)
|
|
| |
| | IEEE 802 |
 | | However, the specifications of WLAN do not define a handover mechanism [13], therefore the roaming is transparent to the MAC layer of IEEE 802.11. |  | | Relevant requirement for the IEEE 802.11 infrastucture network planning would be that the intelligence of the frequency planning should be in the equipment itself. |  | | Relevant requirement for the IEEE 802.11 infrastucture WLAN planning would be that the intelligence of the frequency planning should be in the equipment itself. |
|
http://www.tml.tkk.fi/Opinnot/Tik-110.551/2000/papers/IEEE_802/wlan.html
(7689 words)
|
|
| |
| | OhioLINK ETD: Ge, Ye |
 | | By extending the analytical model, we study the impact of AIFS values in IEEE 802.11e on rate differentiation between different traffic classes, demonstrate that the per flow throughput ratio between different traffic classes is a function of both the persistent probability (or the contention window size) and AIFS values. |  | | We associate the contention window based backoff scheme in the current 802.11 mac protocol to the proposed p-persistent MAC protocol through a simple relation between the contention window, $cw$, and the persistent probability, p. |  | | In particular, we derive an approximate solution for the analytical model to reduce the computational complexity and estimate the performance deterioration due to such an approximate solution. |
|
http://rave.ohiolink.edu/etdc/view?acc_num=osu1095441321
(349 words)
|
|
| |
| | Introduction to IEEE 802.11 - Intelligraphics |
 | | The privacy service, applying to all data frames and some authentication management frames, is an encryption algorithm based on the 802.11 Wired Equivalent Privacy (WEP) algorithm. |  | | An extension to the 802.11 architecture (802.11a) defines different multiplexing techniques that can achieve data rates up to 54 Mbps. |  | | Another extension to the standard (802.11b) defines 11 Mbps and 5.5 Mbps data rates (in addition to the 1 and 2Mbps rates) utilizing an extension to DSSS called High Rate DSSS (HR/DSSS). |
|
http://www.intelligraphics.com/articles/80211_article.html
(3114 words)
|
|
| |
| | IEEE 802.11 standard for WLAN - Intel in Standards |
 | | IEEE 802.11 standard for WLAN - Intel in Standards |  | | In response to these needs, Intel product groups and Intel research and development are working with both the IEEE 802.11n Task Group and the Wi-Fi Alliance. |  | | This combined approach, employing MIMO and 40 MHz channels will enable the IEEE 802.11n technology to reach even higher performance as Moore's Law and CMOS process technology improvements advance DSP capabilities. |
|
http://www.intel.com/standards/case/case_802_11.htm
(2918 words)
|
|
| |
| | IEEE 802.11 |
 | | As mentioned above, 802.11 has been moving rapidly to provide continuous improvements, as has been seen within the Ethernet 802.3 environment. |  | | The 1997 completion of the IEEE 802.11 standard for wireless LANs (WLANs) was a first important step in the evolutionary development of wireless networking technologies. |  | | Lucent Technologies has participated in the development of IEEE 802.11 since its inception in 1990, with Vic Hayes of Lucent Technologies' Wireless Communications and Networking Division, chairing the 802.11 committee since its establishment. |
|
http://www.parksassociates.com/events/forum99/F99papers/ieee802.11.htm
(1330 words)
|
|
| |
| | O'Reilly Network: 802.11b Tips, Tricks, and Facts |
 | | Approved in 1997 by the IEEE 802 committee, 802.11 details the framework necessary for a standard method of wireless networked communications. |  | | In September of 1999, the 802 committee extended the specification, deciding to standardize on DSSS. |  | | The top speed is 11 Mbps, but that's only over the air. |
|
http://www.oreillynet.com/pub/a/wireless/2001/03/02/802.11b_facts.html
(1262 words)
|
|
| |
| | IEEE Oregon Section 802.11 Seminar |
 | | This session will provide an introduction to issues of coexistence between Bluetooth and Wi-Fi (IEEE 802.11b), with particular attention to scenarios requiring simultaneous operation, or "Sim-OP," of both systems in very close proximity. |  | | The WLAN industry is at the forefront of the move from 802.11b at 2.4 GHz to 802.11a at 5 GHz. |  | | He is also the technical editor for 802.11 TGi, his punishment for being the first to discover the flaws in WEP. |
|
http://www.ieee.or.com/IEEEProgramCommittee/80211/80211seminar.htm
(1605 words)
|
|
| |
| | IEEE 802.11 |
 | | The other work is to design 802.11 Compatible MAC scheme for multi-hop ad-hoc network. |  | | Link adaptation on 802.11 is a hot-topic for recent years. |  | | This kind of research is popular in computer science society where people are not very familiar with the varying characteristics of wireless channel. |
|
http://www.winlab.rutgers.edu/~zhibinwu/html/WLAN.html
(541 words)
|
|
| |
| | WLANA The Learning Zone for Wireless Networking |
 | | The 802.11 working group took on the task of developing a global standard for radio equipment and networks operating in the 2.4GHz unlicensed frequency band for data rates of 1 and 2Mbps. |  | | This paper is a general overview of the IEEE 802.11 standard and the working group. |  | | The IEEE 802.11 standard defines the protocol for two types of networks; Ad-hoc and client/server networks. |
|
http://www.wlana.org/learn/80211.htm
(893 words)
|
|
| |
| | PCAUSA - NDIS IEEE 802.11 Notes |
 | | One potentially interesting use of the NDIS Monitor is to gain additional insight into the way IEEE 802.11 adapters are managed in the Windows XP environment. |  | | The Microsoft Whitepaper "IEEE 802.11 Network Adapter Design Guidelines for Windows XP" and the Windows Driver Development Kit (DDK) documentation provides the essential specifications for managing 802.11 adapters. |  | | Interpretation of the bulk of this IEEE 802.11 log is left to the reader. |
|
http://www.ndis.com/papers/ieee802_11_notes.htm
(666 words)
|
|
| |
| | IEEE 802.11 Networks and Windows XP |
 | | IEEE 802.11 Networks and Windows XP Device Fundamentals > |  | | Support for IEEE 802.11 has been added to Microsoft® Windows® XP as a solution for the security, configuration, and management issues that arise when an enterprise considers deploying a wireless network. |  | | IEEE 802.11 Networks and Windows XP Updated: December 4, 2001 |
|
http://www.microsoft.com/whdc/device/network/wireless/IEEE802Net.mspx
(3580 words)
|
|
| |
| | Infrastructure-Based MAC in Wireless Mobile Ad-Hoc Networks |
 | | The performance of MPC-MAC is compared to the IEEE 802.11 DCF-based MAC without MPC. |  | | Therefore, our MPC-MAC outperforms the standard DCF IEEE 802.11 MAC protocol in multi-hop ad-hoc environments. |  | | The IEEE 802.11 standard is the most popular Medium Access Control (MAC) protocol for wireless local area networks. |
|
http://csdl2.computer.org/persagen/DLAbsToc.jsp?resourcePath=/dl/proceedings/lcn/&toc=comp/proceedings/lcn/2002/1591/00/1591toc.xml&DOI=10.1109/LCN.2002.1181868
(320 words)
|
|
| |
| | Spread Spectrum Scene Online's Wireless LAN page |
 | | "Your 802 Wireless Network Has no Clothes", a paper by William A. Arbaugh, Narendar Shankar, and Y.C. Justin Wan, of the University of Maryland's Department of Computer Science, March 30, 2001. |  | | Colubris Networks thinks it has the answer to one of the WLAN's biggest pitfalls", by Peter Fricke, 08/21/01, CommWeb.Com |
|
http://sss-mag.com/wlan.html
(1503 words)
|
|
| |
| | IEEE P802.11, Main General Info Page |
 | | The Status of the work of IEEE P802.11 |  | | For the latest information on 802.11 meetings, please see |  | | Note that 802.11 only specifies the air-interface, that is the interface between stations and between stations and Access points. |
|
http://grouper.ieee.org/groups/802/11/main.html
(773 words)
|
|
| |
| | Dictionary and Encyclopedia - "Number Entries" Listings |
 | | The IEEE 802.11 working groups develop standards to specify an "over-the-air" interface between a wireless client and a base station or access point, as well as among wireless clients. |  | | 802.11 wireless networks prior to 2004 depended on the switched infrastructure that was "in back" of the access points to provide correct packet forwarding when a mobile, roaming client moved from one access point's coverage into that of another. |  | | The IEEE 802.11 specifications address both the Physical (PHY) and Media Access Control (MAC) layers and are tailored to resolve compatibility issues between manufacturers of Wireless LAN equipment. |
|
http://www.connect802.com/encyclopedia/enc-numbers.htm
(3129 words)
|
|
| |
| | Linux & Wireless LANs |
 | | Lucent Wavelan IEEE, Lucent Orinoco, Apple Airport Enterasys RoamAbout 802, Elsa AirLancer 11 and Melco/Buffalo 802.11b |  | | Instant 802 Networks, Inc have created OpenAP, a Linux distribution which directly on Prism II Access Points (such as the US Robotics, SMC or Addtron Access Points). |  | | WISP-Dist is as embedded Linux distribution for wireless routers based on |
|
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux
(3005 words)
|
|
|