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Advantages of WiFi | Disadvantages of WiFi

This page covers advantages and disadvantages of WiFi. It mentions WiFi advantages and WiFi disadvantages.WiFi stands for Wireless Fidelity. The WLAN network is referred as wifi network.

The technology is based on IEEE 802.11 standards which defines PHY and MAC layer specifications. It enables connection between two or more devices wirelessly for data sharing purposes. It is simple and cost effective way to connect with wifi router or with other wifi devices wirelessly without the need of wires.

WiFi network uses radio frequency for its operation in the 2.4 GHz or 5.8 GHz bands. WiFi network is established by installing wifi AP (Access Point) or wifi router. The wifi router or AP is connected with the internet using physical or wired ethernet cable.

Let us understand how two way wifi communication works between wifi router and wifi dongle. The computer translates data into RF signal using wifi dongle and transmits the same into the air with the help of antenna. The wifi router receives the same and decodes it. The router transmits the decoded information over internet after necessary protocol conversion.

The process works in reverse when router receives the information from the internet. It translates the data to RF signal. This RF signal is being received by the wifi dongle which converts the same into data/information.

WiFi Advantages

Following are WiFi advantages:
➨It is easy to add or move wifi clients or wifi stations to the wifi network created by AP (Access Point).
➨Installation is very quick and easy. It does not require technical knowledge of wifi ro wlan system and its protocols.
➨Access to the wifi network can be availed from anywhere within the wifi AP (Access point) coverage range.
➨WiFi enabled USB dongles are available at very affordable rates from TP-Link, D-Link, Tenda etc.
➨Latest wifi standard versions such as 11n and 11ac deliver fast data connection rates e.g. 300 Mbps and higher.
➨As it is easy to integrate wifi functionality in the mobile computing devices; it is now being used by millions of people using various devices such as PCs, laptops, PDAs, Printers, Cameras, Games, MP3 players, smartphones etc.


WiFi Disadvantages

Following are WiFi disadvantages:
➨Data transfer rate decreases (to individual computer) when number of clients or computers connected with wifi network increases.
➨Full security is difficult to achieve due to wifi connection being wireless in nature. It requires proper security authentication protocols and configurations.
➨Wifi devices operate in full functionality and without any interruptions when they are within the range of AP and receiving good signal strength. WiFi access is limited to about 30 to 100 meters (i.e. 100 to 300 feet).
➨In case wifi connection does not work, minimal troubleshootings are needed. This requires one to understand basics of wifi device from user manual provided by the manufacturer.
➨Before using wifi device, one need to install software from the CD provided by the manufacturer in the desktop or laptop.


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What is wlan?
WLAN standards-11a,11b,11g,11n,11ac
11a WLAN Physical layer
11b WLAN Physical layer
11n WLAN Physical layer
WLAN 802.11-ac
WLAN 802.11-ad
Difference between 11a,11b,11g,11n
WLAN router providers
WLAN providers

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