What is 802.11b? | Wireless-B | Wireless Standards: 802.11b is also called as Wireless-B or IEEE 802.11b-1999 is a part of the 802.11 family which extends up to 11MB/s. 802.11b was found in the year 1999 along with 802.11a but the 802.11a works in the frequency 5.8GHz and 802.11-b operates in the 2.4GHz band. The IEEE 802.11-B or the Wireless-B is similar to the traditional wireless as it has a maximum data transmission capacity of 11MB/s.
The Wireless-B is the first wireless LAN which was used widely. The reason for high usage of wireless-b is its low cost and availability. The device manufacturers made their systems compatible with the 802.11b devices. The successful wireless-b has certain drawbacks as well. The 802.11-B uses the unregulated radio frequency (2.4GHz) similar to 802.11 standards.
What is 802.11b?
802.11-b uses the CSMA/CA media access method which was used and defined by the original standard. It has a maximum raw data rate of 11MB/s. Due to the CA/CSMA protocol overhead, the maximum 802.11b throughput an application achieves is about 5.9 MB/s if using TCP and 7.9 MB/s if using UDP. The 802.11-B products are available in the market since the mid of 1999. The IEEE 802.11-B standard is a direct extension of Direct Sequence Spread Spectrum (DSSS) modulation technique defined in the original standard.
The Apple iBook was the first mainstream computer which was released with the 802.11b networking. As per technical terms, the 802.11b standard uses CCK (complementary code keying) as its modulation technique. The increase in the throughput of 802.11-B along with the reduction in the prices led to the rapid increase in acceptance of 802.11 B as the definitive wireless LAN technology. The devices operated with the standard 802.11b suffer interference from other devices or products operated in the 2.4GHz band.
802.11b | Wireless-B’s Wireless Signalling
The 802.11-B product uses 2.4GHz while 802.11a uses 5.8GHz. Some household appliances like a microwave oven and Bluetooth also uses the same frequency i.e. 2.4GHz. This causes interference to the signal that uses 802.11-B products. The IEEE 802.11-B standard operates under 2.4GHz frequency and the manufacturing cost of the product or device with 802.11 B standard is low as well. But the interference causes slowness in the data transmission. But however installing a wireless B device away from other appliance can reduce interference.
Pros and Cons
The below are the advantages of using 802.11-B
- Cost is low
- Signal range is good
The below are the disadvantages of Wireless-B
- Data Transmission speed is slow
- Home appliances influence the signal