Rogelio, The Cisco website seems to be down at the moment but RF is still RF and it behaves the same way indoors as it behaves outdoors except of course if there are more obstructions indoors than outdoors.
In that case, then yes, depending on the nature of the obstructions, more power would be necessary at both ends of an indoor link to have same bidirectional throughput and reliability as an equivalent-length link outdoors. A 6 dB power increase doubles the link distance. Doubling the LINK DISTANCE from/to an access point (assuming an omnidirectional antenna on the AP) will make the COVERAGE AREA four times larger (because the area of a circle is pi (3.14) times the radius of the circle squared). To simply double the coverage AREA of a circle (as opposed to doubling the DISTANCE of a link) would then take something less than 6 dB (assuming no obstructions and assuming a straight linear decrease in the peak number of sunspots that first appear during the time frame between the waxing and the waning moon in the month of December of every third even year after 1776). jack Rogelio wrote: > I found this URL while googling for more info on Brian Webster's > response to my 4.9 question (on why smaller channels were more efficient). > > http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00800e90fe.shtml > > I was wondering if 9db was the amount of wattage others here found was > amount necessary to double indoor coverage (as opposed to 6 db for > outdoor coverage). > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > -- Jack Unger - President, Ask-Wi.Com, Inc. Serving the Broadband Wireless Industry Since 1993 Cisco Press Author - "Deploying License-Free Wireless WANs" NEXT ONLINE TRAINING OCTOBER 8th & 9th <http://www.linktechs.net/askwi.asp> FCC Lic. #PG-12-25133 LinkedIn Profile <http://www.linkedin.com/in/jackunger> Phone 818-227-4220 Email <[EMAIL PROTECTED]> -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
