12-02-2010 12:08 PM - edited 07-03-2021 07:30 PM
Is anyone aware of any guidelines from Cisco and/or observations in the field for 20Mhz (single-channel) 150Mbps 802.11n deployments and 40Mhz (dual-channel) 300Mbps deployments? Also, if they vary be freq. band (2.4 or 5.0 - not intending to do 40Mhz in 2.4Ghz).
Also, if anyone is aware of any 802.11n design guidelines / planning guides (preferrably from Cisco) with some rough APs per sq. ft. guidelines for generic, indoor carpeted office environment (similar to the 1 AP per 10,000 sq. ft. for light/basic data, and 1 AP per 3,000 sq. ft. for VoWLAN), but for 802.11n that would be appreciated.
No need to remind me about the need to perform a site survey - and I realize that these numbers will stretch based upon the environment - just looking for the guidelines and signal values, if published.
Also, it is understood that different clients may have different sensitivity - no need to go there either
Mostly trying to find some published, rough guidelines values for planning purposes.
Thanks,
John
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01-13-2011 04:42 PM
Not sure if you are still looking but this is the reference from the CUWSS Quick Reference Guide.
RSSI/SNR Guidlines | ||||||||||||||||||||||||||||||||||||||||||||||||||
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12-02-2010 12:17 PM
To clarify, regarding SNR, I am looking for an updated table as shown below that includes higher 802.11n data rates for Data and Voice.
Source:
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_q_and_a_item09186a00805e9a96.shtml#q26
01-13-2011 04:42 PM
Not sure if you are still looking but this is the reference from the CUWSS Quick Reference Guide.
RSSI/SNR Guidlines | ||||||||||||||||||||||||||||||||||||||||||||||||||
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01-14-2011 04:23 AM
Thank you Nicholas!
That was EXACTLY what I was looking for.
Can you post a link to the CUWSS Quick Reference guide?
01-14-2011 05:36 AM
It is an eBook availible from Cisco Press ($25) or Amazon.
http://www.ciscopress.com/bookstore/product.asp?isbn=1587141914
I will warn you it is a little sparse (96 pages), but there is some good site survey info in it, including some good instructions for WCS and Airmagnet. Also, if you want to take the CUWSS exam I highly recommend it...
Larry Nicholson
CCDP, CCVP
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