[1st-mile-nm] Information request on wireless reliability and frequency conflicts
peter
pete at ideapete.com
Fri Dec 19 17:23:57 PST 2008
We are involved in several projects investigating wireless conflict
signals within corporations and hospitals and are finding some strange
results which could impact Wi-Fi and Wi - Max usage and indeed the whole
paradigm first mile wireless use.
Basically this is what we are seeing
Open wireless frequencies that have been typical used are 900 - 2.6 and
now 5.8ghtz.
802.11 of various types operates in both the 2.6 and 5.8 sectors ( 5.8
is 802.11n and 802.16 wi max ) the 900 htz range is packed and so is
the 2.8 ghtz
Inside of a hospital for instance multiple monitoring equipment types
and portable phone systems operate on the same frequencies and so does a
huge amount of SCADA operations.
Although channel switching is supposed to prevent signal conflict wi-fi
signal boosters and all wimax whether static or mobile is continually
channel hunting and knocking everything else of of the channel making
many types of systems non usable
It would seem that a major problem is manufacturers testing their
equipment in a silo arena and this would also be relevant to the white
space transmission requests before the FCC at present
This looks like a huge problem and if anyone is experiencing the same
issues please contact us
Apparently Motorola with their Canopy system and Intel ( wi-fi and max )
did a large amount of research but when the conflict issues arose chose
to ignore the results or assumed that channel frequency switch would fix
the problem but its not
( : ( : pete
--
Peter Baston
*IDEAS*
/www.ideapete.com/ <http://www.ideapete.com/>
3210 La Paz Lane
Santa Fe, NM 87507
/Albuquerque// Office: 505-890-9649/
/Santa Fe// Office: 505-629-4227/
/Cell: 505-690-3627/
/Fax: 866-642-8918/
/_Mailto:pete at ideapete.com <mailto:pete at ideapete.com>_/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www2.dcn.org/pipermail/1st-mile-nm/attachments/20081219/acd2fec6/attachment.html>
More information about the 1st-mile-nm
mailing list