Released on: 31, December 1969
, Author: gao embedded
, Audience: Internet related
Wifi and WiMAX provide the first glimpse of extendedcommunications. However the goal is mobile and fixed wireless IP-connectivity atdistances up to 1000km. This year the communications industry prepares for the firstprototypes of wireless, software based, open source, multi-slotted connectivitydevice, with minimum 64Kbs throughput.Oftelsat, a leader in the pioneering of Software Defined Radio (SDR), is workingtogether with other vendors in the United States, building the Software DesignedRadio SDR1000. With SDR, computer hardware can be used as radio hardware. The SDRuses software digital signal processing, which will in the future be part of Wifiand wiMAX devices. Parallel processing makes possible more bandwidth and a higherbitrate. With advent of DSP processors almost two decades ago computer andcommunications technology saw a DSP leveraged to provide sound, fax, video andtelecommunications capabilities wrapped in a simple small package. Now companiessuch as Oftelsat are calling for more cooperation from DSP development leaders.Oftelsat acknowledges that such expertise and knowledge is not widespread and a lotof work needs to be done. People with experience in Digital Signal processing (DSP)and/or DSP programming tools (digital signal generation, filtering and demodulationof complex waveforms) as well as people with organizational and communication skillsare being sought to enter the arena of this new SDR innovation. Even though toolsfor digital signal processing are very expensive and the companies which focus onDSP development are rare, once the SDR proves to be workable there's no debate abouthow such a tool could help in building connectivity.Oftelsat is building a device using short-wave (30 Mhz) multi-slotted radio systems.The radios work with digital signal processing and advanced serial modulation usingsoundcards, up to 128 kbs per channel over Near Vertical Incident Skywave (NVIS) .Wifi is used for space division between short-wave nodes. The device will beintelligent, meaning that it chooses the best frequencies and, using load balancing,route via the nodes with the best propagation. For the node operators this processis automatic and transparent.We took up the plan to develop a tactical short-wave radio system for rural andremote areas, capable delivering 64 Kbsec over distances, more than 500 km as anaddition to Wifi/Wimax possibilities which end at 50 km.
About GAO Embedded Inc.GAO Embedded Inc., a member of GAO Group, is a leading provider of embeddeddevelopment tools that serve the needs of electronic professionals internationally.For further information, please visit http://www.GAOEmbedded.com
Source: Express-Press-Release.com
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