Is this possible? Using a WiFi card for 2 connections?

[Mike]

I am trying to use the WiFi card in my Toshiba Portege M400 TabletPC to
connect to the Internet while simultaneously connecting to a WiFi
enabled projector so I can surf the web while also broadcasting the data
to the projector. I understand that every computer and and projector is
different, however, generally:

1.) Does anyone know if this is even possible to do with a Wifi card
(have 2 simultaneous different connections -- to the Internet and a
projector)?

2.) Has anyone done anything like this before?

3.) Will the connection speed be significantly slower with 2 connections?

Thanks!!!!

 

[Pavel A.]

Yes this is possible; there are several experimental
projects like this. However I have not seen a commercial product yet.
For now, you can just add a second wi-fi adapter.
--PA

 

[Mike]

1.) So would it be safe to day that it is possible -- though it will
take some work and there is no easy way to do this?

2.) How do you add a 2nd WiFi adapter to a tabletpc? Where would it go?
Would the 2 adapters conflict with one another in anyway?

Thanks!!!

 

[Pavel A.]

1.) So would it be safe to day that it is possible -- though it will take some work and there is no easy way to do this?
yes

2.) How do you add a 2nd WiFi adapter to a tabletpc? Where would it go?

Get a USB or cardbus device

Would the 2 adapters conflict with one another in anyway?

WinXP with the latest WZC update can handle several wi-fi adapters, no problem.
Regarding RF interference - your mileage can vary...

--PA

 

[DanS]

I am trying to use the WiFi card in my Toshiba Portege M400 TabletPC to
connect to the Internet while simultaneously connecting to a WiFi
enabled projector so I can surf the web while also broadcasting the data
to the projector. I understand that every computer and and projector is
different, however, generally:

1.) Does anyone know if this is even possible to do with a Wifi card
(have 2 simultaneous different connections -- to the Internet and a
projector)?

2.) Has anyone done anything like this before?

3.) Will the connection speed be significantly slower with 2 connections?

Thanks!!!!

Why would it not be possible. A WiFi enabled projector would indicate to
me that it is an IP device capable of network connections.

After the IP addresses are set properly these should communicate just
like any other network devices you can access on the network, either
wired or wireless. My assumption is that projector is a client on the
wireless, and AP's/rtr's allow many client connections.

Now if you asking about how well it would work, that would depend on what
the wireless speeds are, b, g (and several forms of proprietary 'turbo'),
pre-N, MIMO, etc.

Look at the data rate the projector needs and what surfing the web really
means in terms of the Internet applications you use. Is it just the web,
which is of a bursty nature, or sustained binary d/l's from Usenet, or
PtP programs (which can quickly kill a wireless connection). Going from
client to client on wireless cut's down thruput as well.

I'm not to sure about the built-in Windows tools, but you can d/l a
freeware/shareware traffic monitor that shows u/l and d/l network traffic
speeds usage. I'd then stream a program to the projector with no other
network traffic and get a good baseline reading of what it requires to
provide a satisfactory presentation.

 

[Mike]

I was not sure if a card could be simultaneously connected to 2
different things: internet and a projector. I have received conflicting
info, and have not heard from anyone who has been able to do anything
like this.

What did you mean by:

"Going from
client to client on wireless cut's down thruput as well."

Is this the tabletpc (client) and the projector (client)?

Thanks!!!

 

[DanS]

I was not sure if a card could be simultaneously connected to 2
different things: internet and a projector. I have received
conflicting info, and have not heard from anyone who has been able to
do anything like this.

What did you mean by:

"Going from
client to client on wireless cut's down thruput as well."

Is this the tabletpc (client) and the projector (client)?

Thanks!!!

The AP can only tranmsit or receive as well as the wireless adapters. The
system work by timeslicing between rx and tx. When going from a wirless
client to another wireless client, the AP has to repeat it before the other
device will hear it, since the available bandwidth on the wireless is
shared, your streaming traffic will have to be transmitted twice before it
reaches the projector, once from the laptop to the AP, and from the AP to
the projector. This means you are using twice the amount of wireless
traffic as if you were going directly to another device.

You should visit the alt.internet.wireless newsgroup for more detailed
info, and a few of intelligent regulars.

Regards,

DanS

 

[Mike]

Thanks for your help!!!!

The AP can only tranmsit or receive as well as the wireless adapters. The
system work by timeslicing between rx and tx. When going from a wirless
client to another wireless client, the AP has to repeat it before the other
device will hear it, since the available bandwidth on the wireless is
shared, your streaming traffic will have to be transmitted twice before it
reaches the projector, once from the laptop to the AP, and from the AP to
the projector. This means you are using twice the amount of wireless
traffic as if you were going directly to another device.

You should visit the alt.internet.wireless newsgroup for more detailed
info, and a few of intelligent regulars.

Regards,

DanS