What Are The Disadvantages Of Wireless Lans - ZyXEL Communications P-873HNUP-51B Support Notes

P-873HNUP-51B Support Notes
networks of thousands of users that enable roaming over a broad area.

What are the disadvantages of Wireless LANs?

The speed of Wireless LAN is still relative slower than wired LAN. The most popular
wired LAN is operated in 100Mbps, which is almost 10 times of that of Wireless LAN
(10Mbps). A faster wired LAN standard (1000Mbps), which is 100 times faster,
becomes popular as well. The setup cost of Wireless LAN is relative high because the
equipment cost including access point and PCMCIA Wireless LAN card is higher than
hubs and CAT 5 cables.
Where can you find wireless 802.11 networks?
Airports, hotels, and even coffee shops like Starbucks are deploying 802.11 networks
so people can wirelessly browse the Internet with their laptops. As these types of
networks increase, this will create additional security risk for the remote user if not
properly protected.
What is an Access Point?
The AP (access point also known as a base station) is the wireless server that with an
antenna and a wired Ethernet connection that broadcasts information using radio
signals. AP typically act as a bridge for the clients. It can pass information to wireless
LAN cards that have been installed in computers or laptops allowing those computers
to connect to the campus network and the Internet without wires.
What is IEEE 802.11?
The IEEE 802.11 is a wireless LAN industry standard, and the objective of IEEE 802.11
is to make sure that different manufactures' wireless LAN devices can communicate
to each other.802.11 provides 1 or 2 Mbps transmission in the 2.4 GHz ISM band
using either FHSS or DSSS.
What is 802.11b?
802.11b is the first revision of 802.11 standard allowing data rates up to 11Mbps in
the 2.4GHz ISM band. Also known as 802.11 High-Rate and Wi-Fi. 802.11b only uses
DSSS, the maximum speed of 11Mbps has fallbacks to 5.5, 2 and 1Mbps.
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