DSP and Software Defined Radio (SDR)

Released on: January 21, 2008, 9:42 pm

Press Release Author: gao embedded

Industry: Internet & Online

Press Release Summary: Toronto, ON, Jan. 2008 - Wireless IP connectivity greater
than 50 kilometers is still an elusive creature almost impossible to capture.

Press Release Body: Wifi and WiMAX provide the first glimpse of extended
communications. However the goal is mobile and fixed wireless IP-connectivity at
distances up to 1000km. This year the communications industry prepares for the first
prototypes of wireless, software based, open source, multi-slotted connectivity
device, with minimum 64Kbs throughput.
Oftelsat, a leader in the pioneering of Software Defined Radio (SDR), is working
together with other vendors in the United States, building the Software Designed
Radio SDR1000. With SDR, computer hardware can be used as radio hardware. The SDR
uses software digital signal processing, which will in the future be part of Wifi
and wiMAX devices. Parallel processing makes possible more bandwidth and a higher
bitrate. With advent of DSP processors almost two decades ago computer and
communications technology saw a DSP leveraged to provide sound, fax, video and
telecommunications capabilities wrapped in a simple small package. Now companies
such as Oftelsat are calling for more cooperation from DSP development leaders.
Oftelsat acknowledges that such expertise and knowledge is not widespread and a lot
of work needs to be done. People with experience in Digital Signal processing (DSP)
and/or DSP programming tools (digital signal generation, filtering and demodulation
of complex waveforms) as well as people with organizational and communication skills
are being sought to enter the arena of this new SDR innovation. Even though tools
for digital signal processing are very expensive and the companies which focus on
DSP development are rare, once the SDR proves to be workable there\'s no debate about
how 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 using
soundcards, 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 be
intelligent, meaning that it chooses the best frequencies and, using load balancing,
route via the nodes with the best propagation. For the node operators this process
is automatic and transparent.
We took up the plan to develop a tactical short-wave radio system for rural and
remote areas, capable delivering 64 Kbsec over distances, more than 500 km as an
addition 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 embedded
development tools that serve the needs of electronic professionals internationally.
For further information, please visit http://www.GAOEmbedded.com


Web Site: http://www.gaoembedded.com

Contact Details: Phone Number:010-416-2920038
Fax:416-2922364
ON M1B 2k4
Street Address:601 Milmer Avenue,3rd Floor Toronto

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