What wireless internet connection technologies are available

For your information! This is the most common type of Internet connection. City service providers run a broadband cable into the house, and distribute the Internet between apartments using ethernet.

The best wireless internet. What wireless networks are available

Modern technology opens up a lot of opportunities for people to simplify everyday tasks. One of the most developed, popular and promising technologies is wireless communication. It gives an opportunity to unite subscriber devices into groups and to exchange information. All this happens without the use of wires, which allows the participants of the group to move freely, remaining online. But what is it? To answer this question, it is necessary to understand what computer networks are.

In the United States, the Los Angeles Metropolitan Police Department operates a wireless integrated computer system. These computers, mounted on cars and police bicycles, transmit photographs of wanted people, police files, and other information at high speed.

These students interact via virtual boards, microphones and the Internet. In South Africa, as in every underdeveloped country, there are few teachers for the contingent of children. With this technology, teachers can easily reach more students at the same time.

It is the consolidation of computers, laptops, and other subscriber devices into one group to share information, files, communicate, share available resources, and so on.

Two types of connections can be used to organize such groups:

In the first case, everything is clear – the connection takes place by means of a cable. But in the second case everything is a bit more complicated. To date, there are several wireless communication technologies:

The project should be extended to other countries on the continent. In Brazil, there are also some interesting initiatives to use wireless technology. The classroom is fully equipped with wireless technology. It has a digital slate, and students take their notes on tablets, a kind of online notebook that allows you to write directly on the screen. Lesson content is recorded on the tablets and can be accessed at any time.

What is Wi-Fi. A description of Wi-Fi technology: Video

What are wireless networks.

It is the same as a computer network, but organized without any wires. That is, all the connections are made through radio channels. In this case, if we talk about WiFi technology, the speed of data transfer is not inferior to the cable connection. A single access point has a range of up to 100 meters in direct line of sight and 10 meters in apartments and offices.

You can scan or scan an entire page in as little as four seconds. To eliminate wires, increase access range and make it easier for more people to use the signal in a simplified way, every day we have more devices that work over a wireless network. However, all of these devices working together cause interference that degrades signal quality.

Each electronic device emits electrical or electronic signals that propagate through the environment. These waves propagate through the air and create an electromagnetic field at a specific frequency of each device. When two or more fields are on the same frequency, there is interference between them.

You don't have to suffocate in offices at all in the summer – you can work in the country house as well. The secret is in high technology! Our article will tell you how to choose the best internet for your country house.

Wireless Data Transmission

Wireless technology is a section of informatics and information communications, which allows long-distance transmission of signals in the form of text, visual or audio records without electrical wires as intermediaries. The best known are Bluetooth, Wi-Fi and WiMAX.

The term leads to an understanding of what wireless Internet is. It is a dedicated private network that gives the user access to a global source of world information. Such a line can work both at home and in the office. It is arranged through the selected provider.

What is this technology, the advantages and disadvantages of using

Thus, the main features of the new technology:

• The absence of an electrical cable.
• The possibility of instantaneous exchange of information between 2 or more points.
• The use of radio waves, infrared, optical, or laser radiation to make contact.
• Variety of methods of implementation and areas of use.

• Mobility – the independence of networks from additional devices in the form of cords, which reduces the overall cost of equipment.
• Provided frequency range does not require obtaining a permit.
• Wireless Internet technology protocols provide for subscriber security: encryption, MAC-address filtering (based on physical addresses of devices) and encryption.
• Possibility to change access points for WLAN to find the best signal reception.
• Wide range of equipment from different manufacturers. Due to compliance to international standards purchased wireless communication devices work successfully abroad as well.

• Less reliable method of communication than via cable. Possible interruptions and temporary disconnection of access.
• Limited range: in houses it is about 50 m, in open spaces – no more than 100 m. Above this point, the signal becomes weaker and disappears.
• Risk of reduced quality of connection due to crossing the channels of nearby stations, electrical appliances in the apartment and physical obstacles in the signal path.
• High level of energy consumption: rapid decrease in the charge of the device, especially if it runs on batteries or rechargeable batteries.

Classification of wireless channels

There are several options for dividing the existing channels. Range is one of the most important characteristics. What wireless Internet connection technologies are available:

• Personal networks (abbreviated WPAN). An example is Bluetooth.
• Local (or WLAN). Wireless Internet is Wi-Fi.
• Urban lines (WMAN). This includes WiMAX.
• Dedicated Wide Area Networks (WWAN): CSD, GPRS, EDGE, HSPA, LTE, etc.

Wireless transmission technologies and standards

Wireless technologies, which are more commonly grouped by the term Wi-Fi (Wireless Fidelity), operate under a single IEEE 802.11 protocol. The most common types of specification are:

• IEEE 802.11a: frequency bandwidth within 5 GHz, network bandwidth of 54 Mbps.
• IEEE 802.11b: 2.4 GHz bandwidth and up to 11 Mbps network bandwidth.
• IEEE 802.11g: 2.4 GHz frequency, with a maximum transfer rate of 54 Mbps.

WLAN coverage area is 50-100 meters. The line can be indoors or outdoors, with indoor or outdoor access. Initially, networks were expensive and the Internet was conducted only in large organizations. Soon, hotspots emerged in public places of large cities – through a Wi-Fi controller in a laptop or phone, any visitor could easily and quickly connect to a web resource for personal use.

What wireless Internet connection technologies are available

Depending on the geo-location, as well as the tasks and financial capabilities of the client a certain type of web connection is chosen.

Description of the most popular and their comparison with each other

Internet at home without wires can be represented by the following options:

• Mobile operator: Iota, MTS, etc. At this time, it is possible to connect a high-speed 4G connection.
• Dedicated private line for personal use. Allows you to connect multiple devices via a distribution source, but the Internet only works in a limited area.
• Satellite connection with a wide coverage area. A special dish is purchased for it.

What you need to connect wireless

Wireless technology doesn't need a wire to be connected directly to the gadget, but that doesn't mean it doesn't require any external devices or programs to work.

List of equipment and programs

• The external adapter is a modem. It creates a local network and gives the user access to web resources. Routers can differ in standards and frequency of operation, the number of ports and other important characteristics that affect the quality of communication.
• The electronic device from which you will be accessing the Internet. This is not necessarily a PC, but the device must have a built-in Wi-Fi feature.
• Network drivers on the gadget that are compatible with the router. Periodically, network hardware software needs to be updated if there are problems with wireless transmission. Less often, the system software needs to be reinstalled.
• The Internet Service Provider with your chosen data plan.

How do I know what type of connection is being used?

It is not difficult to find out the type of connection to the Internet, as well as information about the availability of network access. To do this, go to "Network and Sharing Center" on a Windows computer or to "Network" on a Mac. There you can find information about all types of current device connections.

If you do not have access, or if you need more detailed information, you should contact the technical support department of your provider.

Which technology is better

Despite the fact that there are different types of Internet, but it is not always possible to choose the most convenient option. Therefore, it is difficult to identify a particular type of connection that could meet all the requirements of the user.

• The most outdated is considered dial-up access. But sometimes this is the only possible type of connection to the Internet.
• In the case of using a telephone cable the best option may be ADSL connection. Its speed is enough to run most games online, watch videos and download files of different sizes.
• When using smart home technology and digital TV setup, a GPON connection via fiber optic should be preferred. This makes it possible to use the phone, TV and Internet at the same time. This service will cost an order of magnitude more, but the quality of the signal more than pays for itself.
• If you can't get a cable into the house or to the cottage, you need to use radio or mobile Internet, because there are no other options. However, it should be understood that in this case you need to install an antenna or have a smartphone or tablet with a connected tariff that implies unlimited Internet.
• The satellite type of connection should be considered only if there is no other access to the network.

To check which providers can provide Internet access at your home address, you can use the online search. To do this, you need a device with Internet access. To determine the possible options, just enter the address data and click search. The system will display a list of all available service providers.

When choosing the type of connection, you should pay attention to the speed of the Internet. For residential users who live in an apartment building, a good option may be a cable connection, which is now the most popular due to its affordable cost. However, in each case, you should consider your needs and capabilities.

Sustainably used technologies for connecting the Internet

Today we can talk about several technologies used to connect devices to the Internet:

• ADSL – access via analog cable;
• DOCSIS – connection via coaxial cable;
• FTTB – connection over twisted pair;
• PON – fiber optic;
• Internet of mobile devices;
• Internet over a spoke.

For example, FTTP home Internet technology is common in homes, and mobile Internet is common in transport.

ADSL

ADSL technology refers to a wired Internet connection technology. The essence of the technology is the separation of the signal passing through the electric telephone (analog) cable by means of a splitter and a modem device.

Splitter serves as a divider. The modem adapts the signal for sending the signal over a broadband connection.

The main advantage of ADSL technology is its affordability. To connect the Internet user does not need to lay new engineering communications. All Internet connections are made through existing low-current lines.

However, this feature of asymmetric digital subscriber line (ADSL) in addition to plus availability and low price, gives two huge minuses – low speed and low quality.

DOCSIS

With a great stretch DOCSIS technology can be compared with ADSL on the principle of the signal, only it is not used cable telephone, and coaxial cable TV signal is used.

DOCSIS technology was developed for digital television and has evolved from the DOCSIS 1.0 standard to the EuroDOCSIS standard, squeezing 70 mbps from the latter.

This standard is suitable for apartments in apartment buildings, with a small number of gadgets. However, for a private home, the use of such technology is too expensive.

Wireless technology Internet connection

All of the above refers to wired technology, in which the signal is transmitted via electrical cables. The second group of technologies refers to wireless technologies.

Mobile Internet

Well known to all owners of portable gadgets, mobile Internet provides Internet access via cell phones.

Mobile Internet technology includes 3G, 4G and LTE. The speed of mobile Internet connections is up to 10 mbps.

The relatively slow speed of the mobile connection somewhat limits the use of the network, but it is quite sufficient for mobile access and communication.

About Wi-Fi

Wi-Fi technology (Wireless-Fidelity, Wi-Fi Wi-Fi) allows you to create a local wireless Internet network, receiving it from the router and distributing via an access point to mobile devices running in the IEEE 802.11 standard.

Most modern routers have a feature to create a Wi-Fi network. There are also special Wi-Fi routers, which perform the task of creating a base station access point.

Satellite Internet

The name of this technology indicates the principle of its operation. The signal comes to the user from the satellites in orbit. The signal comes through the satellite to the user antenna and is adapted for internet access via modem

For example, a receiver is placed in a house, a modem is connected to it and a device is connected to it.

The speed of satellite Internet connection is only 15 mbps, but the cost is several times higher than any of the described technology.

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If there is poor reception, this means that the modem should be taken outdoors and, if necessary, raised a few meters above the ground. This is the simplest method to improve the signal.

Try simply placing the modem on the window sill of the window from which you can best see the base station. These are usually red and white towers that have three or four poles, although it could be any high-rise structures in the area – they will have the antennas of the receiving communications antennas visible. If that doesn't work, you need to raise the modem above the ground. In this case, it would not hurt to protect the modem from the sun and moisture. Suitable for this is an electrical box for the street, in which just put the device. The main thing is to choose the size of the box, as well as a USB-extender of suitable length. The mast should be about three or five meters high (higher is possible). The main thing is that the base station should be in the "line of sight": tall buildings or trees can significantly degrade the quality of the signal.

The best Internet for country houses is not difficult to choose, to connect – even more so, because modern technology is aimed at combining a pleasant stay out of town with a useful job.

Modern technology offers people a lot of opportunities to simplify daily tasks. One of the most developed, popular and perspective technologies is wireless communication. With its help, there is an opportunity to combine subscriber devices into groups and to exchange information. All this happens without the use of wires, which allows the participants of the group to move freely, remaining online. But what is it? To answer this question, it is necessary to understand what computer networks are.

It is the association of computers, laptops and other subscriber devices into one group to exchange information, files, communicate, share available resources and so on.

What is Wi-Fi. Wi-Fi technology description: Video

What are wireless networks?

It is the same as a computer network but organized without any wires. That is, all the connections are made via radio channels. In this case, if we talk about WiFi technology, the data transfer rate is as fast as the cable connection. At the same time the coverage radius of one access point reaches 100 meters in direct line of sight and 10 meters in apartments and offices.

In summer, you do not need to suffocate in offices – you can also work in the country. The secret is in the high technology! Our article will tell you how to choose the best Internet for your country.

In summer it is not necessary to suffocate in offices – you can also work in the country. The secret is in high technology! Our article will tell you how to choose the best Internet for dacha.Wireless.

In summer, it is not necessary to suffocate in offices – you can work at the cottage too. The secret is in high technology! Our article will tell you how to choose the best Internet for your country.

In summer it is not necessary to suffocate in offices – you can also work in the country. The whole secret – in high technology! Our article will tell you how to choose the best internet for your country.

Basic types of networks

Depending on the type of transmission medium and the technology used, wireless networks are divided into several categories. Let us highlight the main ones:

• On cellular modems. Such wireless networks use existing hardware and are able to work in harsh conditions. Common problems are interference, loss of signal (although now modem signal amplification is not such a problem), etc. Types of signal transmission: analog (TACS, FDMA) and digital (TDMA, GSM and others).

• SST. In this technology, the signal is spread across the frequency spectrum, which increases its bandwidth. This system is actively used in the military. It is divided into two categories – FH-SS and DH-SS. In the first case, the receiver and transmitter change frequencies simultaneously, and in the second, the signal is "smeared out" over the entire range.
• VSAT – satellite wireless network, which provides the transfer of information via satellite (must be at a distance of 40 000 km). Data is transmitted at a speed of up to 2 Mbit / s, the transfer of information over long distances is possible. Among the disadvantages is the delay (about 250 msec), so such systems are not used in real time.
• Application of low-orbit satellites. Same as in the previous case, satellites are used here, but their distance from the Earth is no more than 100 km. Due to the smaller distance, the information delay is reduced, and the quality of communication is improved.

• Infrared systems. They are characterized by the low price of receivers and transmitters, as well as by high data transfer rates. Such wireless networks work in the line-of-sight area. The data transfer rate is limited to 115.2 kbit/s.
• Radio Relay Communications. The system transmits analog and digital signals at up to 34 Mbps. Different bands can be used. The upper limit for the distance is 80 km.
• Laser systems. Data are transferred using a special laser beam. The transfer rate can be up to 10 Gbit/sec. The connection is stable and secure. The disadvantage is the high complexity of the connection and the need to locate devices in the line of sight.

How to configure and connect a wireless network

Above we have considered what wireless networks are, and what their features are. But there remains an equally important question regarding setup and connection. Here, much depends on the technology used. For example, new phones already have the necessary settings for 3G or 4G, or they are set automatically after receiving a text message from the operator.

When it comes to WiFi, the following instructions should be followed:

• Make the necessary settings, set the login and password of the wireless network.
• Turn on the laptop, wait for the operating system to load and pay attention to the appearance of the Wi-Fi icon at the bottom right.

If the module is not enabled, you need to enter the control panel, go to the Network and Internet section, and then to Network Connections.

Now you need to turn on the Wai Fi. If the wireless icon does not appear on the bottom right, you need to download the necessary driver or update the existing program.

To connect automatically, go to the Control Center. Select the desired profile, enter the properties section and confirm the selection. Then select the Internet protocol TCP/IPv4 and click on properties. Specify automatic reception of the address and save the set parameters. If you have difficulty connecting, check the router settings, the fact that your PC or laptop turned on Wi-Fi.

Prospects of wireless networks

Currently, there is a tendency to replace wired pieces of equipment with newer wireless options. This is much more convenient not only because of the mobility of the devices, but also in terms of convenience in use.

The production of wireless equipment will not only allow the introduction of the latest systems in the world of devices for communication, but also to equip with the latest technology housing standard average inhabitant of any locality. Nowadays, only people with a high level of income living in megalopolises can afford such devices.

In the field of wireless radio communications there is constant research resulting in innovative technologies that differ from their predecessors in their greater productivity, lower power consumption and practicality of use. The result of such research is the emergence of new equipment. Manufacturers are always interested in making products that will match the innovative technology.

More productive access points and powerful base stations will enable the use of new technologies in large enterprises everywhere. Equipment will be able to be controlled remotely. In the field of education, wireless technology has the potential to facilitate the teaching and monitoring process. Some schools are already beginning to implement the process of mobile education. It consists of remote learning via video communication over the Internet. The listed examples are just the initial step in the transition to a new stage of society development, which will be built on the basis of wireless technology.

Benefits of Wireless Synchronization

If you compare wired and wireless data transmission, you can identify many advantages of the latter:

• no interfering wires;
• high speed of data transfer;
• practicality and speed of connection;
• mobility in the use of equipment;
• there is no wear and tear or connection interruption;
• it is possible to use several wireless connection options in one device;
• the ability to connect multiple devices to the Internet access point at once.

• Radiation from a large number of devices can adversely affect human health;
• at the close location of various wireless equipment there is a possibility of interference and failures in communication.

The reasons for the massive prevalence of wireless networks are obvious. Any average member of modern society needs to always stay in touch.

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