The capabilities of the mobile Internet fully meet the realities of active and dynamic modern life. Today, owners of mobile gadgets do not have to limit their usual mobile and virtual communication, regardless of their location. With the advent of alternative wireless Internet access technologies, it is enough to have a mobile phone or iPhone, communicator, laptop or iPad tablet, supporting standards last generations 2G and 2.5G, as well as 3G.

Mobile Internet is most in demand among young people and business people, for whom it is important to always and anywhere in the world be able to quickly check their mail, easily contact ISQ, and quickly search for the necessary information and various Internet resources. Mobile Internet connection gives them freedom of movement, eliminating the need to spend a long time at a desktop computer.

If at the time of its appearance the mobile Internet was distinguished by high tariff prices and low quality data transmission, cellular operators currently offer high-speed connections at prices affordable to all subscribers, not inferior in their technical parameters landline Internet. Developers of modern devices are striving to expand the range functionality the equipment they produce, taking into account the demand for various on-line services.

The simplicity and comfort of using the mobile Internet opens up a huge world of online services to users: GPS navigator, organizing conference calls, purchasing goods and placing pre-orders, carrying out any transactions with promotions, checking exchange rates and other useful actions. New prospects for mobile technologies allow subscribers to save their time and bring maximum variety to everyday life.

Wireless Internet is connected to a laptop or computer using a special compact USB modem or other variations of ExpressCard or PCMCIA, which makes it possible to view not only WAP sites adapted for mobile devices, but any web pages. Mobile phones can also be used as a modem device if they are equipped with EDGE, GPRS or 3G standards, and the connection to a computer is provided via Bluetooth, infrared or a data cable. Depending on the selected tariffs, mobile operators provide subscribers with a certain amount of traffic per month or unlimited Internet.

Summarizing the undoubted advantages of the mobile Internet, it is worth recalling that it is:

the most autonomous type of communication available everywhere;

comfortable connection to wireless Internet using small gadgets;

unlimited access to a variety of Internet resources at any time of the day;

high-speed data exchange and reliable protocols information security.

It is quite simple today not to limit your freedom, to always remain mobile in all respects; to do this, you just need to choose the optimal Internet tariff in our online store.

Mobile Internet is one of the promising areas for service development. In short, it is the Internet on your mobile phone. Each person gets the opportunity to use Internet services anywhere and at any time. A protocol has been developed for working in cellular networks wireless transmission WAP data, as well as a special cellular communication standard GPRS, EDGE, 3G, 4G, which provide high speed data transfer over mobile communications. Using mobile devices instead of regular desktop computers greatly simplifies working with the Web and expands the audience of users. Forecasts state that the main applications of mobile communications will be the use of email, access to the Internet and databases.

Modem

A modem is a special device used to transmit data through the telephone network. The end user's computer is connected to the Internet usually through dial-up remote access, that is, through a regular telephone network. In this case, the problem arises of converting digital electronic signals generated by a computer into analog signals that can be transmitted over telephone lines, that is, a modulation problem arises. On the other hand, incoming analog information needs to be converted into something “perceivable” by the computer. digital code, that is, to solve the demodulation problem. The device that does this is called a modem - from the first letters of the words “modulator” and “demodulator”.

Basic specifications modems - the speed at which they transmit information, and the various modulation and error correction protocols. The speed at which a modem transmits information is measured in the number of bits transmitted per second. A modulation protocol is a rule by which digital signals are converted to analog and vice versa. An error correction protocol is required by the modem to correct errors that occur due to interference on the telephone line.

For millions of people, access to the Internet is simply an integral part of everyday life, so thousands of new subscribers connect to the World Wide Web every day. Undoubtedly, using the network, be it communicating with friends or searching for the necessary information, is convenient, fast and comfortable, which is why Internet communications are rapidly developing.

At the moment, connecting to the Internet via wireless communication lines is becoming increasingly popular. There are many types of wireless Internet connections: satellite Internet, WiFi Internet, mobile Internet and other formats that are developing today. However, the most common of them is Wi-Fi Internet connection.

WiFi

Wi-Fi technologies are wireless connections between computers. A PC user can access the Internet while within the radius of the access point, which operates at a distance of approximately 45 m and 90 m outdoors.

The abbreviation Wi-Fi comes from the English phrase Wireless Fidelity, which literally translates as “wireless reliability”.

Wi-Fi is widely used to organize wireless Internet access in public places: cafes, train stations, airports, and even just on the streets. Access points, called hot spots in slang ( hot spot), are installed in economically advantageous areas where many people gather. To use Wi-Fi, you need appropriate equipment that supports this standard - as a rule, most modern laptops and some models of mobile phones are equipped with wireless modules.

Peculiarities:

A simple and convenient way to connect to the service;

No need to connect additional devices - modems, telephone lines, dedicated channels for connecting to the Internet;

There is no dependence on the time of use of the service, you pay only for the Internet traffic used;

Data reception/transmission speed - up to 54 Mbit/second;

Data transmission security;

Constantly expanding network of Wi-Fi access points.

Connection

With PDAs and laptops everything is very clear: once you see the network, you can connect. It’s a little more complicated with stationary PCs; not all of them are initially equipped with wireless communication modules, and you can’t move the PC “closer to the signal.” If for laptops this connection method is periodic, then for PCs a constant, high-quality connection is organized.

For this, PCI Wi-Fi modules are used - external antennas or devices specifically designed for this; they can be universal and specialized - client-side, mainly with a built-in antenna. The easiest installation option is when a wired communication line (or a line from a wireless device) comes to an optimally located location relative to the required coverage area.

Then the access point does not require configuration as such, just turn it on, see the network, connect, get IP addresses, or enter them manually; if the access point is a router, then you cannot do without configuration. In this case, it is better to seek the help of specialists.

An invention such as WiFi Internet has significantly changed views on the possibilities of wireless Internet, and high-speed Internet, with the ability to watch video on - line. However, a certain limitation in range and within the local network poses obstacles to the widespread adoption of WiFi Internet.

WiMAX

A technology close to Wi-Fi is WiMAX. The differences are significant, but the equipment and prevalence of networks have not yet reached the levels of the declared standard. The main differences are the increased speed, the transition from the 2.4 GHz frequency to the range from 1.5 GHz to 11 GHz.

And the most important advantage is that there is no need for direct visibility or extremely close proximity. However, the cost of this equipment is much higher than that of wi-fi - from 20,000 rubles. Domestic wireless Internet service providers practice connection with “free use” of equipment for the duration of the contract, which makes this option more interesting. As a rule, WiMAX wireless Internet is aimed at offices and small and medium-sized businesses.

A relatively small number of communication providers currently operate on WiMAX networks. For example, the largest WiMAX network was created in Pakistan and has 17 cities.

Satellite Internet

Satellite wireless Internet can be one-way or two-way; the first can hardly be called wireless, since an outgoing channel is required, be it a gprs line or something else.

But two-way satellite Internet is exactly that, real wireless Internet. Incoming speeds up to 4 megabits, outgoing speeds up to 819 kilobits, not so much. However, neither wi-fi, nor wimax, nor mobile wireless Internet can compete with the coverage area. The downside is the high cost of equipment and installation work - from 5,000 rubles for one-sided, and from 60,000 for double-sided. Without installation work, the cost will be significantly lower, but without the skills to handle this type of equipment, installation is extremely difficult, and only a professional can do the correct setup.

Mobile Internet

Mobile Internet, although wireless, is still designed for mobile devices, phones, smartphones, and communicators. Indeed, USB adapters for connecting to networks can be called wireless Internet mobile operators. The cost of such devices is in the same category as average wi-fi, but the speed is worse than the latter. In addition, in the regions the quality of communication leaves much to be desired. With the advent of the 3G standard, the situation has changed for the better, but so far we cannot say that it has changed dramatically. However, it is this option indispensable for long trips and country holidays.

With the advent of 3G (from the English third generation - third generation), mobile Internet became accessible. Third generation mobile communications are based on packet data transmission. The set of services combines both high-speed mobile access with Internet services and radio communication technology, which creates a data transmission channel. Talk about the fourth generation of 4G communications is becoming increasingly relevant. This is a promising generation of mobile communications, characterized by high data transfer speeds and improved voice quality. The fourth generation is considered to include promising technologies that allow data transmission at speeds exceeding 10 Mbit/s to a mobile subscriber.

According to the website www.3dnews.ru, the international association IEEE (Institute of Electrical and Electronics Engineers) recently announced the completion of work on a new wireless communication standard IEEE 802.22 for wireless regional networks WRAN (Wireless Regional Area Network). The standard relies on unused television frequency bands.

Through the new IEEE 802.22 systems, according to the association, communities that do not have broadband access will be able to get it. New standard is based on the characteristics of the VHF (VHF, 30-300 MHz) and UHF (UHF, 300-3000 MHz) television bands, which have largely become free with the advent of digital television, and is capable of providing wireless broadband communications at a distance of up to 100 km around the transmitter.

In order to understand which type of wireless connection is best for you, you need to understand how the formats differ. Now you know it!

Advantages and disadvantages of mobile Internet

Surely many have already heard about the existence of the mobile Internet and used their phone as a modem for a computer or a USB modem. But what are the advantages and disadvantages of the mobile Internet? Let's start with the advantages.

Undoubtedly, the main advantage is that you can use the Internet anywhere (if you have a laptop) and at any time (any provider may have service failures). The next advantage is that you can connect the Internet yourself; you only need to enter a few parameters. Another advantage in payment is that you use the Internet as long as there is money on your SIM card. When the money runs out and the work is not yet completed, all operators have the service of receiving a certain amount on credit to the account, or, at worst, you can insert another SIM card that has money on it and change one word in the modem properties (name corresponding operator).

There will be no less disadvantages. The main inconvenience is the very low speed of downloading and loading pages. If you do not disable the option to display graphic objects, you will not be able to wait for some pages to load at all. The data transfer speed is also very unstable. The next important disadvantage is the cost of traffic. As a rule, the price of one megabyte of transmitted or received information on different tariff plans and different operators fluctuates around 6-8 rubles. Of course, there are special tariffs for the Internet, but even there the price is 3-5 rubles. 24-hour unlimited will cost more than 1000 rubles (according to own experience I can say that there is no data transfer speed at all with unlimited). You can connect to unlimited night Internet. The price will be 400-600 rubles depending on the operator.

Whether or not to use the mobile Internet is up to everyone to decide for themselves. The choice depends on the purpose and frequency of using the Internet.