We run Ruckus with a default setting of full power; the APs will adjust
power as needed to individual devices. So the AP will focus with it's
beamforming abilities and adjust power as needed on the fly when it
senses a device. Using a simple Speedtest run will show the power level
adjusting to the enduser for max output.
Saves a major amount of headaches especially with BYODs that come on campus.
Harry Rauch Sr. Network Analyst Eckerd College 4200 - 54th Ave S St.
Petersburg, FL 33711
On 5/8/15 8:58 AM, Rogers, Michael J. wrote:
Out of curiosity what power level do you run your 5ghz band?
*From:*The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] *On Behalf Of *Hinson,
Matthew P
*Sent:* Monday, May 4, 2015 8:02 AM
*To:* [email protected]
*Subject:* Re: [WIRELESS-LAN] Running APs at full power: client
transmit power levels low?
Hi Tristan,
You definitely want to match the Tx power between clients and APs as
close as you can. Obviously, being education, we have little to no
control over the hardware brought into our environment, so always
knowing every device’s Tx power can be hard.
Wi-Fi is a two way street. If at all possible, a client and an access
point’s power settings should match. Almost every frame sent to a
client must be acknowledged very soon after, and if the client can’t
reliably talk back to the AP, you’re going to have an unstable or
unreliable connection.
We run our APs around 15-17dBm in the 2.4GHz band depending on the
area but never higher. With the proliferation of mobile devices,
that’s about all you can get away with without causing a mismatch.
Aerohive had a blog post a while back about the iPhone 5 and its 16dBm
output power in the 2.4GHz band.
http://blogs.aerohive.com/blog/the-network-revolution/apple-iphone-5-wi-fi-specs
*From:*The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] *On Behalf Of *Tristan Gulyas
*Sent:* Monday, May 4, 2015 3:55 AM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* [WIRELESS-LAN] Running APs at full power: client transmit
power levels low?
Hi all,
We’ve run into an issue in some of our sparsely covered areas (2.4GHz
coverage optimised, not density optimised) where we have APs in a
corridor style deployment. This is typically found in older buildings
which means we’re dealing with solid brick interior walls.
These APs are typically running at maximum power levels (typically
3600/3700 series Cisco radios).
In one case, we measured the client end (MacBook Pro) as -71dBm with
an SNR of 22; the AP end saw the client with an SNR of 14 and a signal
of -81dBm and connectivity was unreliable. I have seen similar
results elsewhere with a similar deployment model.
Has anyone else experienced similar issues with corridor style
deployments at full power?
Cheers,
Tristan
**
*Tristan Gulyas*
Senior Network Engineer
Network Operations
eSolutions | Monash University
738 Blackburn Road Clayton 3800
www.monash.edu <http://www.monash.edu/> | [email protected]
<mailto:[email protected]>
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