Trade.Information

Details of WI-MAX revolution

The last great revolution of the telecommunicationses has left from the greatest platform for the Italian oil extraction of the Mediterranean, the Vega-Alpha, of Edison, to the wide one of the sicialian coast, twelve miles marine to south of Siracusa, practically isolated from the rest of the world: its name is "Wi-Max", acronym of Worldwide Interoperability for Microwave Access, a technology developed from Intel and an immense consortium of companies of the field telecommunicationses, a world-wide standard that will arrive in motion on the vehicles, in the telefonini of new generation, on the portable computers and the palmari, in the private rooms, supplying, at the same time, and without problems of superimpositions or saturation, Internet, video, voice and transmission given without to depend on cables, doppini telephone, fiber optics and only managers of fixed telephony.

The Wi-Max system is an evolution of the Wi-Fi, the technology wireless that it today concurs typically to be connected to Internet with just the portable computer to the inside of delimited areas (an office or a room) without having to physically connect the apparatus to a modem, through radio waves. The Wi-Max extends the distance in which it is possible to connect itself without threads to Internet (until 50 km, but with little repeaters any locality can be caught up), but above all of it it extends the speed of transmission (theoretically until 7,5 times that one currently available on fiber optic) and the bandwidth, that is the "virtual space" on which the information can travel. All, to a paltry cost regarding the traditional systems.

On the oil platform Vega-Alpha, the Wi-Max comes used in order to transmit and to receive the relative data you to the extraction of the crude oil, the conditions of exercise of the system and, at the same time, for all the telephone communications with the mainland. Moreover, the system supervises also to the communications of service with the ship-reservior berthed to 300 meters from the platform and with the ship-support that ago the bobbin with the mainland. Always in simultaneous with other asset, the dependent can be annoying on Internet, receive and transmit the own e-mail, to be connected in video and voice with the families to house and to receive also those not captabili television channels and wireless through the traditional antennas. On the Etna, a net wireless to similare monitors and transmits the data in real time on the vulcanica activity.

But we are already beyond the Wi-Max: the Polytechnic of Turin has put to point a system of transmission to 20 megabit to the second in a position to covering one distance of 300 km without intermediate bridges. Daniel Trinchero is the university professor to head of the plan: "Thanks to this new technology we are resolutions to connect the higher shelter of Europe, Hut Daisy, to 4556 m of height on the Mount Rose, with Pian Cavallaro on the Appennino Tosco-Emiliano: they are 295 kilometers of distance ". A record rendered obtained with budget to cost zero, without to resort to expensive futuristiche technologies, using old 386 computers and software open source.

The plan is been born from the participation to an international competition autogestita between university and laboratories of search, that technology to low cost and on measure for the countries of the third world had like final scope the creation of one. "we are convinced", explains Trinchero, "than the only way in order to strike digital-it divides is to use technologies to contained costs, above all in the within of the communications that would have to be for definition of mass, that is to the capacity of all". The performances of the new system wireless, called "Ixem", are indeed impressive if confronted with the normal Wi-Fi systems that have a beam of cover of little hundreds of meters, but also with the new Wi-Max protocol: the team of the Polytechnic counts to arrive, within the summer, to transmit until to 340 kilometers.

We come to hurting notes. Ill-fatedly, the frequencies used from Wi-Max are of property of the army. To December 2006, an agreement has been caught up in order to liberalize them. Hour is believed to assign them the operating ones trades them with of the public auctions much similar to those used in order to assign the frequencies of the UMTS: the usual oligopoly will be formed, the high costs of the auction will be unload to you on the final customer, and goodbye revolution. If the access to the frequencies of the Wi-Max were liberalized, anyone, with little moneies, could make competition the great companies that operate in the field of the telephony and that they use standard UMTS, companies that million tens have paid euro for having those frequencies and that they do not want sure to be looked at to steal the market from first arrives to you.

The idea alternative is similar to that one that regulated voluptuary expenses in the condominio of the buildings: one jumps on, ago a plan, obtains a certification (that demand for all the trasmissivi systems in power), puts an antenna in a particular area, satisfied the installation, uses the infrastructure. The second that arrives can make two things: to put a second antenna, or, paying 50% of the infrastructure costs pays to you from the first one and having the same type of requirement trained to you, it shares the structure. The third party that the same one arrives ago, paying 33% to first and 33% to the second.

"we are not in was of the Information. We are not in was of Internet. We are in was of the Logon ".

Celeberrimo the university professor of Stanford Lawrence Lessig, between the other promotore of Commons Creatives, has launch the offensive "Deregulating Spectrum": "the point is the deregulation of the frequencies. Deregulation does not mean that we put to the auction the frequencies (as it previews to make the government Italian). Because the auctions demand a right of property of the government and it is a shape of regulation of the phantom. Deregolamentare in the sense that lasciamo wide portions of the phantom available for a use without licence ".

Lessig supports the called alternative "Open Spectrum", that is the total deregulation of the ether with possibility of transmission for whichever subject (also private citizens) without need of authorization (today asked the amateur radios operator). The transmission would happen through a net of microprocessori or intelligent antennas, said "cognitive radios", that they repeat marks them on an explored frequency and found free from others marks them and cleaned up from interferences locally (varying it from an antenna to the other) veicolando radio, Internet, fonia fixed and mobile, tv digita them land and to satellitare in an only one marks digitized them that comes interpreted and recomposed. The emergency, integrities and privacy of the transmitted data would be guaranteed from mechanisms intrinseci to the information, that is from the cryptography. In lack of frequencies cleaned up from interferences, than they are not others marks transmitted them already, the transmission happens equally: finishes receiving they if they is digita, has the technology for depurare every noise, for which the interferences of fact they are not a problem. That would exceed puts into effect it them necessity of giving to more frequencies to the same radio duct and tv and leaving of several empty ones between and an other, concurring a use of all the phantom of frequencies, and of the spaces of transmission theoretically illimita to you, for a wide number of issuing radio ducts and tv. And above all, to equip to every citizen of usable wide band liberations.