Microsoft Word wlan security Assessment Countermeasures Final Draft Modified[1]


Table 5 IEEE 802.11 family of standards 10



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Table 5 IEEE 802.11 family of standards
10

Specification
Description

Main Purpose
Pros
Cons
IEEE 802.11
(June, 1997)
The earliest standard, allowing 1-
2 Mbps of bandwidth in the 2.4 GHz band uses FHSS, DSS, and IR in the physical layer, covering typical range of m. Basic wireless technology standard
IEEE ab (Sep, 1999)
Second revision to the original
802.11 standard bandwidth of 54
Mbps in 5 GHz RF band uses
OFDM; typical range ism. Higher Performance Fast maximum speed no signal interference as it operates in licensed frequency. Highest cost short signal range that is more easily obstructed.
IEEE b
(Sep., 1999)
First revision to the original
802.11 standard bandwidth of 11
Mbps in 2.4 GHz RF band uses
DSSS/CCK; typical range ism. Performance Enhancements Lowest cost good signal range that is not easily obstructed slowest maximum speed interference with home appliances on the unlicensed frequency band
IEEE db (b
Defines physical layer requirements to satisfy regulatory domains not covered by the existing standards enable client adjusts its frequencies, power levels and bandwidth accordingly.
Promote Worldwide Use
IEEE ebb (b) Defines a set of Quality of Service enhancements for wireless LAN applications through modifications of the Media Access Control (MAC) layer to support applications such as such as VoIP and video.
QOS Enhancements
IEEE F
(2003) A standard designed to enforce interoperability of multi-vendor
APs within a WLAN network infrastructure. It uses the Inter-
Access Point Roaming Protocol, which lets a roaming user transparently switch from one access point to another while moving around.
Interoperability
IEEE g
(June, 2003) Fourth revision to the original
802.11 standard bandwidth of 54
Mbps in 2.4 GHz RF band uses
OFDM/PBCC; typical range is Higher Performance with b Backward Fast maximum speed good signal range Costs more than b chances of interference on

Wireless Local Area Network (WLAN): Security Risk Assessment and Countermeasures
Nwabude Arinze Sunday
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