[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