technology conforms to standard 802.11b increasingly being used as
main standard for corporate internal wireless LAN networks. The bandwidth
of 802.11b is 11 Mbps and operates at 2.4 GHz Frequency. The successor of
this current 802.11b standard is 802.11a and it is designed to operate at
faster speed and at a different frequency. Though 802.11a standard and the
technology behind it has become available, 802.11b is still widely used
today. Both 802.11b and 802.11a are compatible with each other and many
companies deploying dual 802.11b and 802.11a devices.
2. Benefits of
- Useful in
organizations such as hotels, hospitals, and manufacturing units that have
constraints for laying cables.
- Useful for small
and medium companies that intend to relocate their premises according to
needs. There are no cabling costs involved when relocating the Company
premises when wireless networking is used.
networks are also useful for notebook users in an office environment.
Having a wireless LAN in place saves mobile users the hassle of plugging
into a docking station every time they want to access the network.
Instead, they can access the network from anywhere in the building.
Inventory management: It is possible to update the inventory in real time
by using notebook computers with barcode readers. The inventory is updated
in real time as the products come and go out of the storage space.
- You can use PDA
(Personal Digital Assistant) to access the network resources.
Being a wireless network, a wireless LAN has a few security
risk that need to be taken care of while designing the network. Typical
security risks are categorized below:
Process of placing unauthorized devices on the wireless network without
going through a security process and review.
monitoring wireless traffic: An attacker can sniff and capture legitimate
traffic. By encrypting the data this type of attack can be minimized.
Jamming: Similar to
DoS (Denial of Service) attacks, a wireless network may be subjected to
jamming, where legitimate traffic gets jammed because illegitimate traffic
overwhelms the frequencies, making it impossible for timely flow of