Flashcards in 7 - WLANs Deck (8):
What are three advantages of Wireless LAN?
- Fast installation
- User mobility
What are three disadvantages of Wireless LAN?
- Small bandwidth
- Broadcast medium can be intercepted
What is a LAN?
A low cost, high speed local area network, with almost error-free communications.
What are the two modes in WLAN Architecture?
- BSS (basic service set)
- Ad hoc network
What is an ESS?
Extended service set, formed by interconnecting BSSs via a distribution system.
What are some advantages to the infrared physical layer?
- Simple and inexpensive
- Constrained by walls, secured against eavesdropping
What are some disadvantages against the infrared physical layer?
- Interference from sunlight, indoor lighting
- Limited range