Hello, everyone!
Today, I would like to share with you a brief introduction on wireless protocols.
WiFi is a term used to specify one of the types of 802.11 families. The wireless LAN node is responsible for a public connection via Wi-Fi that is given from a certain location is called a hotspot. A lot of airports, hotels, fast-food chains, and public spaces allow access to their Wi-Fi networks.
WiMAX: It has a range of 30 miles and presents a provider network that can be accessed by a wireless
solution.
Bluetooth: It is the development of the telecommunications industry that leads to the understanding of how phones, computers, and PDAs can connect to wireless connections at a short distance.
Ultra wideband: Ultra-wideband is also commonly known as is also called UWB. It is a wireless technology set up to transmit huge amounts of data digitally over a wide range of frequency bands for
low power at a short distance.
802.11: This belongs to a currently changing family of the WLANs developed by the Institute of Electrical and Electronics Engineers. New specifications are added from time to time.
Wireless Standards: 802.11 are the specifications of the over-the-air interface between a wireless device and a station that exists between two wireless clients.
There are different kinds of specifications in the family:
802.11a: It provides 54 Mbps in a 5 GHz band to wireless LANs. 802.11a makes use of the orthogonal frequency encoding rather than FHSS or DSSS.
802.11b: It applies to wireless LANs and gives a speed of 11 Mbps in the 2.4 GHz band. This type of specification only uses DSSS. 802.11b was ratified in 1999, which allowed it to function wirelessly.
802.11e: It is a draft standard that determines the Quality of Service (QoS) support for LANs; this is an enhanced version of the other WLAN specifications. The 802.11e provides features such as being able to support multimedia devices and allow wireless connectivity to 802.11a and 802.11b standards.
802.11 g: This specification applies to wireless LANs and can be used for short-distance transmissions like 54 Mbps in the 2.4 GHz bands.
802.11n: This one adds a feature of multiple-input multiple-output (MIMO) in the other standards. Extra antennas are added for transmitting and receiving large amounts of data through spatial multiplexing and diversity by using code like Alamouti coding. The speed is 100 Mbits/s, which is five times faster than 802.11 g.
802.11ac: It builds upon the 802.11n standard to deliver 433 Mbps per stream or 1.3 Gbps in the three stream design. The 802.11Ac specification works in the 5 GHz range and allows support for many channels. It also has beam forming capabilities to cater to better speed.
802.11ac Wave 2: This is an update of the 802.11Ac, which uses MU-MIMO technology and has other advancements that help increase speed to 6.93 Gbps.
802.11ad: It is a wireless specification that is undergoing development and set to operate in the frequency of 60 GHz band. It offers a transfer rate, which is as high as 7 Gbps.
802.11ah: This is also known as the Wi-Fi HaLow. It is the first wireless standard that operates in a frequency band below one gigahertz and possesses a range of twice as many as the other Wi-Fi technologies.
802.11r: This is also called Fast Basic Service Set (BSS) Transition. It allows support for VoWi-Fi handoff to enable access points operating between VoIP roaming on a Wi-Fi network that has authentication of 802.1X.
802.1X: The 802.1X is an IEEE standard used for port-based Network Access Control. It allows the network admins to use IEEE 802 LAN services on a restriction. It helps in establishing secure communication between authenticated and authorized devices.
You are welcome to like and exchange in the comment area. Stay safe and Thank you!
