Hello, everyone!
Today, I would like to share with you an article on the types of wireless networks.
PAN (Personal Area Network):
Wireless Personal Area Networks are networks that connect devices within a relatively small area, usually within a domain where a person can access all its parts. For example, Bluetooth technology connects a personal computer with headphones.
WLANs:
Wireless Local Area Networks are the most common type of wireless network. It connects devices at a greater distance than the previous type, such as a home, office, or even a building, and sometimes it extends to cover several kilometers. Most LANs are based on the IEEE 802.11 standard, which contains standards for wireless local networks operating in the 2.4, 3.6 and 5 GHz bands and includes a number of different protocols. The important characteristics of this network compared to the WAN network is that it transmits data at much higher speeds, as it transmits data at a speed of 10 to 10,000 Mbps per second. Existing LANs, mostly non-wireless, are based on the Ethernet standard.
Wi-Fi is a name commonly used as an alternative to IEEE 802.11 although this use is scientifically incorrect. Because Wi-Fi is a company logo that signifies that devices that follow the previous standard can be connected together.
Fixed Wireless Data:
These are wireless networks that are used to establish a connection between two devices or networks in two different places. This is done through the use of microwaves or laser beams over the line of sight (Line of Sight). This type of network is often used to connect networks in adjacent buildings without the need to physically connect these buildings with each other.
MAN - Networks:
Metropolitan Area Networks link several LAN networks together to achieve a wireless network that extends over a medium-sized geographic area, such as across a university campus or a city. The service you perform is similar to the service that your Internet Provider (ISP) performs.
WiMAX is the term used to refer to this type of network and is addressed by the IEEE 802.16d and IEEE 802.16e standards established by the Society of Electrical and Electronics Engineers. There are two advantages to this type of network., The size of this type of network is larger than the LAN. Many of the MANs cover an area the size of a city and some cover a group of buildings, equivalent to an area of between 5 and 50 km in radius. The MAN operates as a network with high speeds allowing the sharing of local and regional resources. They are often used to provide or support a communication subscription with other networks using a WAN connection.
Cellular Networks:
The recent development in the field of PCS: a radio network used by some cell phone users. Cellular networks have enabled us to transfer data and information through these networks, in addition to the main objective of which is to transfer conversations between two cellular devices.
Global System for Mobile Communications (GSM):
It is a standard for the communication of mobile devices with each other. It consists of 3 basic systems: Base Station System, Operation and Support System, and Switching System. When a call is made, it communicates first with the base system, which communicates with the operations and assistance system, which in turn communicates with the transfer system, and finally, this system delivers the call to its destination.
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