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High Speed Wireless Data Transfer from VTT, Technical Research Centre of Finland
September 02, 2002VTT (Technical Research Centre of Finland) has developed a fast and flexible radio modem, enabling wireless indoor network. The performance of the modem is approximately 20-200 times better compared to similar commercial (WLAN, Bluetooth) technologies. If compared to GSM and UMTS technologies, the new modem is 5000 times faster than the former and 100 times faster than the latter.
The modem enables a wireless network at home or in the office, speeding up the transfer of different multimedia e.g. videos, music, text, data - between the different devices of the network, e.g. video cameras, TV`s PC`s and Internet. Because of its high speed the user can download e.g. a several hour`s film from the Internet to the main device in just a few minutes whereas it would take about an hour with a commercial WLAN-technology. Moving the devices around indoors is also possible without diminishing the data transfer quality.
The goal of the VTT-lead co-operation is the standardisation of the new technology. Nine other international research institutions that have participated in the development of the new modem including universities and companies from Spain, Italy, Greece, Poland and Germany.
Normally the data transfer speed and quality is much higher with a wired connection. With VTT`s new technology (speed 200 Mbit/s) the performance differences between the wired and wireless connections diminish. The radiomodem using 17 GHz`s center frequency enables faster and more flexible connections. The radiomodem can also adjust to the needs of the data transfer in question and to the data transfer environment so that the quality of the data transfer will be accomplished by using as little power as possible. In addition, the network instalments can be done faster and cheaper by building in advance so called unplanned networks (ad hoc-networks), where each modem can communicate with any modem in the network without preinstalled base stations.
Technical Research Centre of Finland (VTT)
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