Wi-Fi is defined as a technology that uses radio waves to establish a network connection, and it is an abbreviation of the word “wireless fidelity”. The connection is established using a wireless adapter that allows users to access network and Internet communication services.
How does Wi-Fi work?
A Wi-Fi network uses radio waves to transmit information across the network. The computer or phone contains a wireless adapter that translates the data being transmitted into this signal, which is sent by the antenna from the router.
This wireless network transmits traffic “send and receive” in both directions, and data from the Internet passes through the router, and is converted into “radio” broadcast signals to be received by a wireless adapter for a computer or mobile phone.
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Network Distributor “Access Point”
There are routers that help wireless networks reach a greater range and wider coverage, such as range extenders, “signal boosters”, network distributors, or “access point” devices.
Wi-Fi,
CISCO,ARUBA,DLINK
What is the Access Point?
Known as a wireless access point, it collects all existing wireless devices and connects them using wires to the main network, which contributes to achieving communication between wired devices and wireless devices.
Router
The router sends the electronic packets and directs them to the receivers, and its main task is to determine the path from which the packets will pass to the receiver.
The device contains a dedicated “software” for this process, in addition to other features and services.
Router function
The router works to connect two or more networks that are close or not close to each other, by knowing the path that leads to the other router, using several other routers.
Router
UNIFI, CISCO, ARUBA,
LINKSYS, DLINK, TPLINK
Router types:
- A router that knows and defines the path it will take to reach the other party.
- A router sends packets directly to the incoming path without specifying the best path.
Switch
A switch is a networking device that connects network parts together using packets of switches to send, process and communicate data to the receiving device, unlike a router or router.
Repeater
This device operates in the physical layer of the “OSI” model, regenerates or amplifies the signal before retransmitting it, also known as a “signal booster”, and was released for wired data communication networks due to the challenges of signal propagation over the longer distance area and for wireless networks a simple installation is made to expand the cell size.
- “OSI” is an acronym for “Open-Systems-Interconnection”.
How to use the repeater
The electrical signal weakens when it travels along a medium, depending on the characteristics of the medium, so it is not possible to transmit a signal that exceeds a certain limit imposed by the different types of “LAN” technologies in local networks, and for this reason repeaters are used frequently.
Repeaters follow the analogue electrical signal, they transmit the physical layer signal to correspond to the bottom layer of the “OSI” model, so that the repeater amplifies it during transmission and returns it to the original form.
Repeaters functions
- Repeaters communicate with each other in the physical layer.
- It strengthens the system’s signals by transmitting signals to weaker locations.
- The transmission of data between two devices when these receivers connect different network signals.
- Repeaters can remove the distance between two devices.
- Repeaters have the feature of constantly monitoring the signals that are generated between the two LANs.
- Enhancing weak signals to become stronger in data transmission.
- Provide a flexible network.
- Support for multi-site connectivity solutions.
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