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Wireless Internet

Cellular Internet and Smart Mobile Phones | HotSpot wireless Internet | Satellite internet from anywhere

Mobile satellite internet accessOne of most exciting new technologies today is Wireless Internet Service. Wireless technology is playing an increasing role in the lives of people around the world. Many people use Internet services from cell phones, PDAs,  Pocket PCs, or  laptops. This became the convenient and fast way to communicate  in each  occupation: from doctors and policemen to salespeople and businessmen. They use the Wide World Web  everyday at offices, at home  and  on the move, and  can not work and live  normally without it.

Wireless technology uses as a medium of communication  the radio waves, that  operate in the 3 KHz to 300 GHz range. For comparison, the AM radio band operate in  1 MHz  diapason, the FM radio band operate in diapason of 100 MHz , and  the GPS (Global Positioning Satellite) band operates  in the diapason 1.5 GHz.

3rd Generation Wireless, or 3G, is the term used for the next generation of wireless or mobile communications systems. 3G systems aim to provide enhanced voice, text and data services to each user. The third generation networks  supports  real-time video, high-speed multimedia and mobile Internet access.  A 4G system provides mobile ultra-broadband Internet access, for example to laptops with USB wireless modems, to smartphones, and to other mobile devices. Conceivable applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing and 3D television. Now you can use your voice to use your iPhone. Just talk to Siri as you would to a person: “Do I need an umbrella?” or “Any great burgers around here?” or “Where’s the closest ATM?” Siri not only understands what you say, it knows what you mean. It figures out the right apps to use to find the right answer. Then, just like a personal assistant, it answers you. Siri makes phone calls, sends messages, schedules meetings, sets reminders, and more. How much more? Just ask, and Siri tells you that, too.

Below we describe  some variety of  technologies of modern Wireless Internet mentioning  main corresponding Connection standards or protocols.

cellular wireless internetCellular Internet and Smart Mobile Phones

Cellular Internet service is based on a cellular architecture that consists of a “backbone” network with fixed “base stations”, interconnected through the wired public switched telephone network  (PSTN). The geographic areas within which mobile units (cell phones) can communicate with a particular base station are called “cells.” Adjacent cells overlap each other, thus ensuring continuity of communications when users move from one cell to another cell. The user’s mobile units communicate with each other, as well as with other networks, through the base stations, and the backbone network. A set of radio frequency channels is allocated to each base station. Neighboring cells must use different channels, in order to avoid unacceptable interference.

Developed according to the 3rd Generation Partnership Project (3GPP), the Global System for Mobile TeleCommunications (GSM) is the most popular standard for mobile phones in the world. This project is a co-operation between ETSI (Europe), ARIB/TTC (Japan), CCSA (China), ATIS (North America) and TTA (South Korea). The International Telecommunications Union defined the third generation of mobile telephony standards, known as IMT-2000. The standards based on these projects make it possible to use the same phone with a different company’s service, or even while traveling in a different country. Another advantage is that the standard includes one worldwide Emergency telephone number, 112. This makes it easier for international travelers to connect to emergency services without knowing the local emergency number. For these standards, both the signaling and speech channels are digital. General Packet Radio Service (GPRS) is a packet-oriented mobile data service available to users of GSM mobile phones. GPRS was invented with the idea that cell phones can also be computers, e-mail and Web browsers, and even TV receivers.


Fit Wireless


Generally, the cellular network is composed of the following parts:

Any geographic region is divided up into cells. Each cell has a BST that transmits data via a radio link to a mobile station (MS) within the cell. Wireless Application Protocol (WAP) is an open international standard for Internet access from very small portable devices, such as PDA’s and mobile phones. WAP allows users to send and receive emails, get the latest stock exchange indexes, receive sports results, and keep up with the latest news headlines.

Wi-Fi is the trademark name for a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections.

Wireless Internet services are needed predominantly in rural environments, where cable and digital subscriber lines are not available. Wireless Internet services (WIS) are provided by many companies, including Sprint Nextel Corporation (www.sprint.com), Verizon Wireless Corporation (www.verizonwireless.com), and AT&T Corporation (www.att.com).

Nearly every laptop sold today has a wireless modem factory-installed in it, and there are also many new handheld devices that are set up for remote Internet access.

During the last decade, we saw a trend toward evolving the typical mobile phone with one function (a voice conversation), into a multi-functional smart phone. The latter has advanced capabilities, often with PC-like functionality, e-mail and Internet capabilities, games, a photo camera and a music player. The smart phone

might include a miniature QWERTY keyboard, a touch screen, media software for playing music, browsing photos and viewing video clips, or have the ability to read business documents in a variety of formats such as PDF and Microsoft Office.  Some companies also embed a GPS module to search the nearest hotel, shop, or other service, in their mobile phones.


Worldwide Free Shippping


HotSpot Wireless Internet

 There are many places everywhere, from airports and hotels to coffee shops, Internet cafes and restaurants, where customers enjoy wireless high-speed Internet access. These locations are called “hot spots”. Many of them charge a daily or hourly rate for access, but some are free. Many cities offer free wireless hot spots (“free spots”) to attract visitors, while many businesses are pursuing wireless in a variety of ways. An interconnected area of hot spots and network access points is known as a “hot zone”. Several websites offer searchable listings of free and paid public Wi-Fi hot spots, for example, www.jiwire.com.

Hot spots and free spots use WLAN (Wireless Local Area Network) standards. The most common standard is IEEE 802.11b (also called “Wi-Fi”).

A public wireless hot spot is an area where a computer or PDA, equipped with a WLAN module, can connect to the Internet through Wireless Access Points. A single access point can be reached from a distance of no more than 100-200 meters (300-600 ft.), but hot spots consisting of hundreds of access points also exist, which, for example, might cover an entire airport.

Existing providers of hot spot systems include T-Mobile , HotSpotSystem, and Netopia, Inc., among others.

Some hot spots are equipped with PayKiosk terminals, which allow users without mobile devices to reach the Internet as easily as they would use a pay phone or an ATM. Usually, customers have the choice of either accessing the Internet on the PayKiosk terminal, or using the wireless signal transmitted from the terminal to connect their own laptop or PDA.


Satellite Internet from Anywhere

 Satellite communications are used in rescue operations, the maritime industry, oil, gas and mining industries, transportation and travel, and the military, to name a few. Today, this type of communication ensures better quality than traditional radio systems.

To receive satellite service, the user needs an antenna with a transmitter aimed at the correct satellite, along with a very specialized modem connected to his computer. A two-way satellite Internet sends data from remote sites via satellite to a hub, which then sends the data to the Internet. With Satellite Internet , it is possible to surf the worldwide web, send and receive e-mail, and anything else that can be done with a dial-up connection, cable or DSL connection, or wireless connection.

Satellite Internet uses advanced encryption technology to handle sensitive data and protect the user’s privacy, making the satellite connection secure and safe from hackers. Two-way satellite Internet usually consists of:

 The satellite dish antenna gets mounted on an exterior wall, balcony, roof, or any other location in near proximity to the home, which is connected by coaxial cable to a satellite modem. It may be mounted also on a truck, van, railroad car, or trailer, etc.

The television and internet satellites are all in geosynchronous orbit around the Earth, meaning that they stay in one place in the sky relative to the Earth. Each satellite is launched into space at about 7,000 mph (11,000 kph), reaching approximately 22,200 miles (35,700 km) above the Earth. At this speed and altitude, the satellite will perfectly follow the full rotation of the Earth in each and every 24-hour period. Satellite system providers can use a constellation of satellites. For example, Iridium Communications Inc.  uses a constellation of sixty-six low-earth orbiting (LEO) satellites operated by Boeing Corporation. Satellite services for users in the U.S. are provided from satellite transponders owned by SES , Iridium Communications Inc., Telesat , SAT1USA, and others.

Inmarsat was the world’s first global mobile satellite communications operator, and is still the only one to offer a mature range of modern communications services to maritime, land-mobile, aeronautical, and other users.

Today’s Inmarsat system is used by independent service providers, to offer a range of voice and multimedia communications. Inmarsat’s business strategy is to pursue a variety of new opportunities, as information technology, telecom, and mobility technologies converge.

In 2005, the new Inmarsat I-4 satellite system first went into orbit. This system allows TV broadcasters to beam breaking news via videophones into millions of homes.

Mobil Satellite Technologies  has developed two types of mobile satellite Internet, TV and phone systems. The first is “stationary-automatic”, for units that work when the vehicle or vessel is stopped, and the other is  “in-motion”, for units that work while  the vehicle or vessel is moving.

Modern wireless communication service providers use a combination of all types of wireless Internet.


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