1. Wireless LAN Applications
A wireless LAN is one that makes use of a wireless transmission medium.
LAN Extension
Cross-building interconnect
Nomadic Access
Ad hoc networking

2. LAN Extension Wireless LAN linked into a wired LAN on same premises
Backbone
Support servers and stationary workstations
Wireless LAN
Stations in large open areas such as Manufacturing plants, stock exchange trading floors, and warehouses
Historical buildings
Small offices

4. Multiple-cell Wireless LAN

5. Cross-Building Interconnect
Connect LANs in nearby buildings
Wired or wireless LANs
Point-to-point wireless link is used
Devices connected are typically bridges or routers
This signal point-to-point link is not a LAN.

6. Nomadic Access
Wireless link between LAN hub and mobile data terminal equipped with antenna
Laptop computer or notepad computer
Uses:
Transfer data from portable computer to office server
Extended environment such as campus

7. Ad Hoc Networking
Temporary peer-to-peer network (no centralized server) set up to meet immediate need
Example:
Group of employees with laptops convene for a meeting; employees link computers in a temporary network for duration of meeting

9. Wireless LAN Requirements
Throughput
Number of nodes
Connection to backbone LAN
Service area
Battery power consumption
Transmission robustness and security
Collocated network operation
License-free operation
Handoff/roaming
Dynamic configuration

10. Wireless LAN Categories
Infrared (IR) LANs
Spread spectrum LANs
Narrowband microwave

11. Comparison of Wireless LAN technologies

12. Bluetooth Techniques Overview
Universal short-range wireless capability
Uses 2.4-GHz band
Available globally for unlicensed users
Devices within 10 m can share up to 720 kbps of capacity
Supports open-ended list of applications
Data, audio, graphics, video

13. Bluetooth Application Areas
Data and voice access points
Real-time voice and data transmissions
Cable replacement
Eliminates need for numerous cable attachments for connection
Ad hoc networking
Device with Bluetooth radio can establish connection with another when in range