IEEE 802.11 Standards
The IEEE 802 standards are a set of network standards developed by the Institute of Electrical and Electronics Engineers or the IEEE (Stallings, 384). The IEEE formed the IEEE 802 committee because they recognized that the communication across a local network is extremely complex and that no one method would satisfy all requirements (Stallings, 384). Therefore, the committee chose to standardize all thoughtful and important proposals rather than adopt only one. Each standard begins with a group of people interested in developing a standard. The group submits a project authorization request for approval to the IEEE. If approved, the group works collectively to draft a standard for approval. Currently there are several active groups working on drafting new IEEE 802 standards. The IEEE 802.1 group develops standards that relate to network management issues. IEEE 802.3 is a group that develops standards for the media access control layer for bus networks that use CSMA/CD. This is the foundation of the Ethernet standard. IEEE 802.11 develops recommendations for wireless local area networks or WLANs. The IEEE 802.15 group develops Personal Area Network consensus standards for short distance wireless networks or WPANs. IEEE 8
In addition to the active groups mentioned above, there are also numerous inactive or disbanded groups within IEEE 802. These include 802.2 (Logical Link Control Working Group), 802.4 (Token Bus Working Group), 802.5 (Token Ring Working Group), 802.6 (Metropolitan Area Network Working Group), 802.7 (Broadband TAG), 802.9 (Isochronous LAN Working Group), 802.10 (Security Working Group), 802.12 (Demand Priority Working Group), 802.8 (Fiber Optic TAG), 802.14 (Cable Modem Working Group), (O’Hara). Frequency 2.4 GHz 5GHz 2.4GHz 2.4 GHz 5GHz Comparison of 802.11, 11.a, 11.b, 11.g, 11.h 802.11h is a working group that addresses the media access control layer of 802.11 and the physical layer of 802.11a (www.ieee.org). Its purpose is to overcome both interference problems, as well as improve the problem of multiple specs that may be transmitted on the same band. 802.11h utilizes DFS (Dynamic Frequency Selection) to ensure that devices check a frequency to make sure they are not in use prior to transmitting. Additionally, it also utilizes TPC (Transmit Power Control) to ensure that only the minimum necessary power is utilized (www.ieee.org). One very important working group to the networking industry is IEEE 802.11. 802.11 defines standards for wireless local and metropolitan area networks. The IEEE 802.11 standard places specifications on the parameters of both the physi
Some topics in this essay:
Conover DSSS,
Modem O’Hara,
IEEE Stallings,
Access Protocol,
Power Control,
Technical Advisory,
Frequency Selection,
DFS/TPC Frequency,
WPANs IEEE,
,
physical layer,
access control,
ieee 80211,
data rate,
ieee 802,
physical layer standard,
layer standard,
80211a 80211b,
develops standards,
channels available,
csma/ca csma/ca,
access control mac,
medium access control,
technology data rates,
speeds technology data,
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Approximate Word count = 936
Approximate Pages = 4 (250 words per page double spaced)
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