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Wi-Fi
Description: 

Wi-Fi, also known as Wireless Local Area Network (LAN), is the most common wireless technology generally used for connecting a computer to the Internet. Wi-Fi operates based on IEEE 802.11 standards, which has been developed to enable Wireless LAN in the 2.4 GHz, 3.6 GHz or 5.2 GHz frequency bands. Wi-Fi access points are known as hot spots which are small, so the coverage is sparse. A single access point can support 30 users and can function within a range of 100-150 feet indoors and up to 300-500 feet outdoors.

802.11a
- Operates at 3.7/5 GHz;
- Data rate can be up to 54 Mbps;
- Approximate indoor range of 100-150 ft;
- Approximate outdoor range of 300-400 ft;

802.11b
- Operates at 2.4 GHz;
- Data rate can be up to 11 Mbps;
- Approximate indoor range of 100-150 ft;
- Approximate outdoor range of 300-500 ft;

802.11g
- Operates at 2.4 GHz;
- Data rate can be up to 54 Mbps;
- Approximate indoor range of 100-150 ft;
- Approximate outdoor range of 300-500 ft;

802.11n
- Operates at 2.4/5 GHz;
- Data rate can be up to 54 Mbps;
- Approximate indoor range of 200-250 ft;
- Approximate outdoor range of 500-800 ft;

Interested readers can visit Wi-Fi Alliance site for more information: http://www.wi-fi.org/

Applications: 

Wi-Fi can serve as a communication platform for smart appliances, home area networks, neighborhood networks, and wide area networks integrating with a smart grid. Wi-Fi can also be implemented in a substation environment to support the operation of wireless sensors. However, Wi-Fi will require encryption for increased security.

Key Technology Area: 
Integrated Communications

Sample Vendors:

 

(Disclaimer: This is a representative sample list of vendors which is updated frequently. The SGIC portal does not endorse any companies or products listed herein.)