User Manual

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Differentiating Between Wireless Technologies
IEEE 802.11
2 Mbps, 2.4 GHz band, 1997, MAC/Physical Standard
IEEE 802.11a 54 Mbps, 5 GHz band, 1999, MAC/Physical Standard
IEEE 802.11b 11 Mbps, 2.4 GHz Band, 1999, MAC/Physical Standard
IEEE 802.11c MAC Layer Bridging to support IEEE802.1D
IEEE 802.11d Automatic settings for different countries
IEEE 802.11e Quality of Service (QoS)
IEEE 802.11f IAPP, Inter-Access Point Protocol, cancelled by IEEE after February, 2006
IEEE 802.11g 54 Mbps, 2.4 GHz Band, 2003, MAC/Physical Standard
IEEE 802.11h Support more channels on 5GHz spectrum, 2004
IEEE 802.11i Wireless security, 2004
IEEE 802.11j Japanese Standard upgrade, 2004
IEEE 802.11l Reversed
IEEE 802.11m Maintenance Standard
IEEE 802.11n
Draft now, using MIMO (Multi-input Multi Output) Technology to increase transmission
speed to 300–600Mbps
IEEE 802.11 k Define measurement items and protocol
IEEE 802.11r
Define implementations of WLAN roaming, enables 802.11 able to be applied to mobile and
VoIP applications
IEEE 802.11s
Standard for Mesh under standard architecture
1.3 Evolution of IEEE 802.11
With the advent and development of local area networks (LAN), IEEE 802.3 has been widely adopted in many
different kinds of communication applications. The continued prevalence of wired communication has also
contributed to the growing demand for wireless communication. In 1997, IEEE released the IEEE 802.11 standards
that define the Physical Layer and Data Link Layer of TCP/IP, allowing communication based on these protocols
to be extended and used with greater flexibility. For the Physical Layer, IEEE 802.11 utilizes non-licensed ISM
(Industrial, Scientific and Medical) bands that operate between 2.4 GHz and 5 GHz. In order to make wireless
communication more prevalent and feasible, there are also task groups within IEEE designated to develop different
wireless applications.