Wireless Network allows you to connect one or more computers or other devices such as mobiles, laptops, and printers so that you can share files and access the internet, it uses radio signals.
Wireless Networks “are networks that use radio waves to connect devices, without the necessity of using cables of any kind”.
Wireless networks work similarly to a wired network; however wireless networks must convert information signals into a form suitable for transmission through the air medium.
Wireless networks serve many purposes. In some cases, they are used as cable replacements, while in other cases they are used to provide access to corporate data from remote locations.
Wireless networks can be classified into four main categories according to the area of application and their signal range;
WPAN is based on the IEEE 802.15 standard. They communicate in short-range about 10 meters. It is created by interconnecting devices within a relatively small area. These technologies rely on technologies such as Bluetooth, and Zigbee.
Advantages of WPAN
Disadvantages of WPAN
Are designed to provide wireless access in areas with a typical range of up to 100 meters, and is used mostly in homes, schools, and computer laboratories or office environments. WLAN is based on IEEE 802.11 standard. The maximum transfer rate for IEEE 802.11 is 54 Mbps.
Advantages of WLAN
Disadvantages of WLAN
WMAN is based on IEEE 802.16 standard, which is often called WiMAX (Worldwide Interoperability for Microwave Access). WMAN is the interconnection of LANs (Local Area networks). WMAN has a greater coverage distance compared to WLAN.
Advantages of WMAN
Disadvantages of WMAN
WWAN extends beyond 50 kilometers and typically uses licensed frequency. It can be maintained over large areas like cities, and countries, via satellite systems or antennas.
Advantages of WWAN
Disadvantages of WWAN
Advantages of Wireless Network
Wireless Network Operations
The wireless adapter receives the data from the computer and translates it into a radio signal. The radio signal is then transmitted through an antenna, the wireless router receives the radio and decodes it, and sends data to the receiver.
Wireless security is the prevention of unauthorized access or damage to computers or data using wireless networks which include Wi-Fi networks. The most common type of Wi-Fi securities is Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), and Wi-Fi Protected Setup(WPS).
WEP is designed to provide a wireless local area network with a level of security and privacy.
WPA was developed by the Wi-Fi Alliance to provide more sophisticated data encryption and better user authentication than WEP.
WEP version one (WEP) was introduced in 2003, WEP version two (WEP 2) was introduced in 2004, and WEP version three (WEP 3) was introduced in 2018.
Limitations of Wireless Network