[linux-elitists] Science or Witchcraft: WiCa? Fwd: pho: Disruptive Technologies on the 2002 Horizon
Karsten M. Self
Sat Jan 19 14:12:38 PST 2002
Forget pervasive WiFi. Or rather, take it with you....
on Sat, Jan 12, 2002 at 11:45:20PM -0800, John Parres (firstname.lastname@example.org) wrote:
> The print version of this article available at CES differs from that found
> online. Most important missing line: "...Delphi envisions using the
> technology to turn every car on the highway into a node on the Internet..."
> Forget iPod swapping. Think car hopping.
> Disruptive Technologies on the 2002 Horizon
> by Brad Smith
> January 7, 2002
> Wireless Week
> Can you have a cellular phone system without cell sites and towers?
> How about self-configuring high-speed wireless networks virtually
> Those are the promises of a couple of futuristic wireless technologies
> that are commercially still on the drawing boards. If their proponents
> are correct, though, 2002 could be one of those watershed years. These
> technologies have proven themselves in real-world?read that
> "military"?situations. But, as with a lot of technologies, it is the
> business case that will decide if they succeed.
> One of these technologies is being developed by MeshNetworks Inc. of
> Maitland, Fla. MeshNetworks' proprietary technology is called
> quad-division multiple access or, generically, "ad hoc peer-to-peer
> networking." The other is an open standard called ultrawideband, on
> which several companies are working.
> QDMA and UWB both are fascinating from a technical point of view and
> potentially disruptive to the wireless communications industry.
> The FCC, which has had UWB under consideration for several years, is
> expected to approve that technology for commercial use in February.
> UWB spreads very low power signals over such a broad swath of
> bandwidth that it is compared to background noise. UWB promises data
> rates of 100 megabits per second. Among the companies champing at the
> bit to use UWB are Time Domain Corp. of Huntsville, Ala., and
> XtremeSpectrum Inc. of Vienna, Va.
> Assuming the FCC approves UWB in February, XtremeSpectrum plans to
> have products out soon thereafter, including set-top boxes, PCs,
> laptops, DVDs, digital video recorders and cameras, MP3 players,
> personal digital assistants and high-end displays.
> MeshNetworks expects to have PC cards available in April for a network
> demonstration using QDMA. MeshNetworks is basing its technology on
> work ITT Industries has done for the Department of Defense. The
> company is well-capitalized, with more than $27 million from investors
> and strategic partners that include ITT, 3Com Corp., BancBoston and
> Patricof & Co.
> So, where does the idea of a cellular system without cell sites come
> in? That's the description of Craig Mathias, a principal in the
> Ashland, Mass., advisory firm Farpoint Group. Mathias defines a mesh
> network, such as the one MeshNetworks uses, as one in which the end
> node also can serve other users simultaneously?in other words, a
> cellular system without cells.
> QDMA doesn't need any infrastructure to work, although access points
> eventually are needed to connect to the Internet. Packet-based, it can
> provide data speeds of up to 6 Mbps and also can be used for IP voice
> calls. Cell sites are unnecessary because the devices themselves are
> both routers and end-user handsets. MeshNetworks intends the first
> devices for unlicensed 2.4 GHz spectrum.
> Mathias calls QDMA a fourth-generation technology because of its high
> bandwidth and says carriers could find the technology attractive if
> MeshNetworks can sell its business case to them.
> Rick Rotondo, whose title at MeshNetworks is, appropriately, director
> of disruptive technology and marketing, says the company's partners
> include MapInfo, PacketVideo Corp., Go2 Systems Inc. and ITOCHU Corp.
> of Japan.
> Other companies also are working on wireless mesh technology, although
> they are not necessarily similar to MeshNetworks. Among these, Mathias
> says, are Digital InterRelay Communications in Germany, IndraNet in
> Australia and New Zealand, Radiant Networks in the United Kingdom,
> CoWave Networks Inc. of Freemont, Calif., and Nokia.
> These mesh networks are a "hot" technological arena and one that is
> important to the evolution of wireless communications, Mathias says.
> Ramesh Bhimarao, marketing manager of wireless ASICs for Fujitsu
> Microelectronics America, which is making MeshNetworks' chips, says
> Fujitsu believes the technology has the potential to "break open the
> wireless broadband space." Fujitsu is making a system-on-a-chip
> solution for Mesh.
> Which technology will succeed: UWB or QDMA? My hunch is that as an
> open standard, UWB might stand a better chance in the market. But
> Qualcomm certainly succeeded in establishing its proprietary CDMA
> technology, so don't count MeshNetworks out.
> Author Information Brad Smith is IP/Data editor at Wireless Week. His
> column is a monthly feature in Wireless Internet Magazine. He can be
> reached at email@example.com.
> Printer friendly version E-mail a Colleague
> Do You Yahoo!?
> Send FREE video emails in Yahoo! Mail!
> This is the pho mailing list, managed by Majordomo 1.94.4.
> To send a message to the list, email firstname.lastname@example.org.
> To send a request to majordomo, email email@example.com and put your
> request in the body of the message (use request "help" for help).
> To unsubscribe from the list, email firstname.lastname@example.org and put
> "unsubscribe pho" in the body of the message.
Karsten M. Self <email@example.com> http://kmself.home.netcom.com/
What part of "Gestalt" don't you understand? Home of the brave
http://gestalt-system.sourceforge.net/ Land of the free
We freed Dmitry! Boycott Adobe! Repeal the DMCA! http://www.freesklyarov.org
Geek for Hire http://kmself.home.netcom.com/resume.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 232 bytes
Desc: not available
Url : http://allium.zgp.org/pipermail/linux-elitists/attachments/20020119/37fe9187/attachment.pgp
More information about the linux-elitists