Wireless Local Area Network (WLAN)

Wireless LAN which stands for Wireless Local Area Network. The work of wireless LAN is to connect the mobile user to the Local Area Network with the wireless connection.

There are some standards on which the Wireless Local Area Network Operate, the standard is called IEEE 802.11.

The Wireless Local Area Network can provide high-speed data transmission in areas where access to the internet is difficult with wired cables such as in buildings and offices. Wireless Local Area Network allows the user to move in a specific region and remain connected to the network.

The WLANs are one of the fastest-growing technologies and the requirement of connecting the user to the network inside an organization is in demand. The Wireless Local Area Network can provide a network to the user with a seamless uninterrupted connection.

Although the Wireless Local Area Network technology may seem very different from the Traditional Local Area Network, mostly their internal workings have a great resemblance. As the LAN used the Dynamic Host Configuration Protocol to add the new users in the network the same protocol is used by the WLANs. The devices in the Wireless LAN are communicating with the same method they would have communicated in the LAN.

The main difference between the wireless LAN and the LAN is the method of data transmission, in the LAN the transmission of the data packets happens over the physical cables such as Ethernet cables and in the Wireless LAN, the data transmission happens over the air as the medium using the IEEE 802.11 protocols.

As the use of wireless devices such as wireless headsets, hotspots, etc. are becoming popular so is the underlying technology that is Wireless Local Area Network. And in support of this technology more and more upgrades are happening such as earlier the router used in the LAN are now made to wireless routers. The wireless router serves as the base station for the wireless connecting devices such as smartphones to be connected within a particular range. This wireless router can provide a connection to many devices such as laptops, smartphones, tablets, and various other smart devices such as IoT appliances. Also, the wireless router can connect to the modem and this modem has access to the internet and with the help of the modem, the devices that are connected with the router can also gain access to the internet and can also be remotely controlled over the internet.


Advantages of the Wireless Local Area Network

The WLAN can eliminate the cost of the cable that is required in setting up the internet connection within the building of an office or apartment, this is what makes the WLAN technology cost-efficient and the business to adopt this technology.

The number of devices that are connected to WLAN is not limited as in the LAN, because in LAN we used to have physical ports on the router to provide the network connection but in WLAN there are no physical ports and it can support as many users are connected to the WLAN.

In the LAN if you have to increase the range of the network then you would have required a router, switches, cables, and a network engineer to connect them. Now, to extend the range of the WLANs you have to only add the repeaters to the area and the signal of the wireless Local area network will therefore be extended wherever required.


Disadvantages of Wireless Local Area Network

Due to the wireless medium of communication, it can encounter various interferences from the other network signals which can distort the original signal. 

They are more susceptible to other physical barriers such as walls and buildings as the obstruction can reduce the strength of the signal.

As the LAN offers the highest performance concerning speed therefore they are most by the corporate and other high speed demanding areas.


Why the wifi is slower than the ethernet?

This a simple truth that wired connections will always be faster than wireless connections. First of all, the wireless connection broadcast the signal all over the place which may be subject to various obstruction such as the microwave in-home or your neighbors own wifi, but in wired connection, there is only one dedicated line and the quality of the signal will not deteriorate as in the wifi signal until the length of cable does not exceed the length of a football stadium. Secondly, the collision detection in the wired connection is more effective than the wireless, if the collision takes place in a wired network a signal is sent immediately back to the source but there’s no way the routers can detect these collisions in the mid-air so to solve this problem the wifi router adds a delay to the sending signal it waits for the other signal to clear off the air medium and therefore this adds to the latency in the sending and receiving signals. Third, the wifi signal follows the old half-duplex technology, in this either the device can send or can receive the signal at one time, experts are working to make a complete duplex technology which is followed in the ethernet cable but still are not able to create the working technology.


Also, the LAN and WLANs can work together and they can bridge the networks providing both the facility to the user. Even routers are designed for the same purpose. they can provide ports to connect the physical LAN ethernet cable as well as provide the wireless connection to the mobile devices at the same time.




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