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Hi,

 

Sounds like WiDi (called Miracast by WiFi alliance) to me and yes as with everything else that occupies the same channels as your WLAN it will impact your wireless network with higher channel utilization.

 

Cheers

Anders

University of Umeå

SUNET Sweden

 

Från: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Legge, Jeffry
Skickat: den 29 oktober 2012 18:45
Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Ämne: [WIRELESS-LAN] Wireless Mirroring

 

Is anyone doing wireless mirroring?

 

http://wirelessmirroring.com/

 

Can this cause problems with an existing campus wireless network?

 

Jeff Legge

Radford University

jglegge@radford.edu

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

Comments

Message from jcoehoorn@york.edu

The video at that link uses normal wifi... It's just AirPlay to an AppleTV. We gave an iPad to most faculty this year and installed AirServer on our classroom computers to support it. It's a lot of rf air time, but at least it's using your infrastructure rather than competing with it, and it all seems to work well enough.

What I might worry about is on systems that route all traffic back to a central controller-- not just manage the access points but actually run the traffic through the controller. These systems tend to operate under the assumption that most traffic is headed out to the web, or a file server, or a database, or some other resource housed in your sever racks, and so there's not much penalty routing all local traffic back to your network core... it was probably headed there anyway.  I'm not sure how well this holds up for mirroring applications like AirPlay, where suddenly you have a lot of traffic going client to client again. It has the potential to needlessly stress your inter-building links.

We don't have that type of system here, but if we did I would want to check out what Airplay was doing to on those links.

Sent from my iPad

Message from jcoehoorn@york.edu

Oops... should have looked at the video more closely... that is doing something completely different than AirPlay.... But given you can use AirPlay over wifi for most any kind of device (including PC and android), that to me would be the way to go.

Sent from my iPad

  It’s hard to tell from the video, but it looks like the case probably puts out the video signal on one of the digital TV channels at low power.  So there’s a slight risk that it could interfere with reception of a broadcast signal – presumably you can configure it to use a channel not already in use locally.  (Anybody know for sure?)

 

  I wouldn’t expect that to interfere with WiFi, any more than existing digital TV broadcasts do.

 

David Gillett

 

 

Message from curtis.k.larsen@utah.edu

I have used Air-Parrot on Win7, but what app do you use on Android to mirror your screen? I have seen apps that let you stream audio, or video, but haven't found anything that lets me mirror my android screen. Let me know. -Curtis On 10/29/2012 01:07 PM, Joel Coehoorn wrote: > Oops... should have looked at the video more closely... that is doing > something completely different than AirPlay.... But given you can use > AirPlay over wifi for most any kind of device (including PC and > android), that to me would be the way to go. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
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