Wifi advantages and disadvantages

For example, if you bought a house or apartment with renovation – and there is no wired network – then Wifi is your solution.

Contents

The advantages and disadvantages of wireless networking
Read also
Where it all started
Origin of the word
Pronunciation
Parsing the confusion
Disadvantages of wireless wi-fi networks
Low data transfer speed (in old protocols)
Network Security
Advantages and disadvantages of the technologies
Results
IT-services: what they are, types, peculiarities.
The advantages of remote video surveillance and control
Difference between IT outsourcing and services, consulting

The advantages and disadvantages of wireless networking

Any business has its advantages and disadvantages, unequivocally determining the choice of this or that technology in specific conditions. This rule applies to wireless networks as well.

Let's consider the main advantages of a wireless network.

The ease of creating and restructuring a network – This is the greatest advantage of a wireless network, as it allows you to make a minimum of effort, and most importantly, a minimum of cost for creating a functional and fairly fast network. It is not even that "regular" network sometimes lazy to do (it happens and so), but that, having one or more access points, you can connect into a unified local network of separate buildings or computers located at a great distance from each other.

In addition, a wireless network can be created quickly, when it is expensive to create a wired network: at various conferences, exhibitions, retreats, etc. Fast, beautiful (without a lot of wires) and efficient. We should also not forget about the premises where laying the cable system violates the historical value of buildings: museums, historical buildings, etc.

As far as restructuring is concerned, it's quite simple: Just add a new computer and you're done. There are no problems neither with Ad-Nose type connections nor with the use of an access point.

Mobility. The best of the technologies that we have in our world are only the best if they are versatile. Today, the main indicator of versatility is mobility, allowing a person to do their business wherever they are, under any conditions. Cell phones, personal assistants, communicators, and laptop computers are representatives of modern technology.

With the advent of wireless networks and related computer technology, mobility has taken on a broader meaning and makes it possible to interconnect any communication-capable device with which our lives are so rich. With such a device, you can easily move around your city and be sure that you always stay in touch and be able to get the latest information. Sooner or later the proverb "If the mountain does not go to Mohammed, Mohammed goes to the mountain" can be read differently: "If you do not want to come to the network, the network itself will come to you.

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Where it all started

Digital Wi-Fi technology was invented by Australian engineer John O'Sullivan in 1998. It has similar characteristics to Bluetooth, IR modules, radio transmissions, and mobile networks. A device that emits a wi-fi signal creates a wireless network connection, functions in a set range of radio frequencies that covers a certain area. All gadgets within the area can join the network (provided they support wireless communication).

The Wi-Fi brand name was invented by Alliance members when developing this invention. Wi Fi routers operate according to the IEEE 802.11n communications standards specification.

Origin of the word

Not everyone knows the definition of the term Wi-Fi, but it is encoded in the word itself. It comes from the first two letters of the words Wireless Fidelity which means "wireless fidelity," in Russian. It's a brand name coined by Alliance Corporation for the Internet technology they promote.

Pronunciation

The word Wi-Fi has a simple pronunciation. It reads as "wi-fi".It is pronounced quickly without separation or with a slight pause. Pronunciation "wi fi." is fundamentally wrong.

Parsing the confusion

The handy and short word Wi-Fi is suitable for naming several things, so when you need to explain "What is wi fi?" confusion often arises in people's minds. Let's look at the basic concepts:

Network. In places where Wi-Fi is distributed, a local network is formed, to which several users can connect.
Router. Networking equipment that distributes wireless Internet.
The type of connection. To establish a connection to the wi-fi network on an electronic device, you need to select this option and the network from the list of networks.

Disadvantages of wireless wi-fi networks

Low data transfer speed (in old protocols)

Advantages and disadvantages of a wireless network. No matter how fast the network is, this speed is always not enough. Especially acute this problem concerns the wireless network. The fact that the actual speed of data transfer in such a network is different from the theoretical. For many reasons.

For such reasons we can refer, for instance, to the number of obstacles on the signal path. The same number of computers connected to the network. Features of the construction of data packets (large volume of service data). The remoteness of computers from the router and more.

As an example, let's look at the old IEEE 802.11n standard.

Radius, the network under different conditions of use:

Today there are technologies such as MU MIMO, which provide multiple radio streams. Each network client device runs on its own stream. This partially solves the issue with the speed of Wi-Fi transmission and reduces the load on the network. But it does not solve the problem completely. It's not going to be like that on wifi. Although for simple work quite enough. PS. Although the new protocol 802.11ax may change this in the near future.

Network Security

Network security, wired or wireless, has always been paramount. This is especially important in organizations that handle money or other physical assets.

The security of the wireless network is a little bit lower compared to its "friend", the wired network. All because of insufficiently serious authentication and encryption mechanisms. It was proved by the first WEP encryption protocol, which encoded data with a key length of 40 (pcs.). It turns out that to calculate such a key, it's enough to analyze the intercepted packets within 2-3 hours.

Advantages and disadvantages of the technologies

of connection security. The only way to break into a local network is to physically connect to it via cable. Wi-Fi network can be hacked or connected from any device by knowing the password;
connection quality. Wireless signal is vulnerable to radio interference. There is no such problem with a cable connection.

However, wired Internet requires cabling for each device in the local network.

Easy installation. You need only one cable led to the router;
Ease of use. It is possible to connect to the network without wires from a laptop and other devices;
free scalability. If your current Wi-Fi coverage is insufficient, it can easily be expanded with access points. Scaling up wired Internet would require laying new lines of cable.

Wireless was previously thought to be significantly slower than cable. However, there is already a Wi-Fi 802.11ax standard that can deliver up to 11 Gbps. And in a few years even more advanced generation 802.11be, which will provide up to 30 Gbps, is to be introduced. You can find out how to improve your Internet connection in your office in our article.

Of course, this is the speed limit, and in real conditions it will be less. But even a wired Internet for speeds of 10 Gbit/sec needs at least a category 6 cable. It is possible to get higher values (the same 40 GB/s), but for this you need an expensive CAT 8 cable. Besides it works only on short distances.

Results

Cable Internet is still relevant for the office, as it provides a secure and more stable connection. However, it is used exclusively in combination with Wi-Fi, which is characterized by ease of use and easy scaling.

It is worth noting that in order to create a productive wireless network in the office, conduct a Wi-Fi radio survey. This can be done before, during or after Wi-Fi network deployment.

This procedure is aimed at investigating the environment of Internet use and identifying all the factors affecting the quality of Internet coverage. It will help you properly plan and implement a Wi-Fi network. You can order a Wi-Fi radio survey from the company "Sky-Dynamics".