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WirelessRudy
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3x3 & 6x6 MIMO

Thu May 19, 2011 1:32 am

Anybody has any experiance with 3x3 MIMO?

I found this product, but I wouldn't know of manufacturer of radio to use it. Definately not MT.
Future mayby (MT?).

http://www.lanbowan.com/products/en_vpro.asp?id=769

Same for 6x6: http://www.lanbowan.com/products/en_vpro.asp?id=714
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Rudy R. Puister

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lazerusrm
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Re: 3x3 & 6x6 MIMO

Thu May 19, 2011 8:17 am

...More than 2x2 mimo i really don't understand..

You have H. Polarity, and V. Polarity, and have can have large isolation between. What other

polarities can you really use on a spatial stream other than to use as diversity?

Circular polarity is only 3 db isolation...

I found this article, you will benifit from a read:

http://www.eetimes.com/design/communica ... l-analysis
 
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normis
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Re: 3x3 & 6x6 MIMO

Thu May 19, 2011 8:19 am

2x2 mimo is with two antennas, 3x3 mimo is with three antennas. it's not about polarity.
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WirelessRudy
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Re: 3x3 & 6x6 MIMO

Thu May 19, 2011 11:17 am

2x2 mimo is with two antennas, 3x3 mimo is with three antennas. it's not about polarity.
normis, has MT any plans in 3x3 directions?
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normis
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Re: 3x3 & 6x6 MIMO

Thu May 19, 2011 11:18 am

we are always looking to improve our products, so yes
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morf
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Re: 3x3 & 6x6 MIMO

Wed Oct 12, 2011 8:13 pm

Hello!
Is there any progress in mimo3x3?
Can you recommend a wireless card mimo3x3 with channel speeds up to 450 Mbps.
Thank you very much!
 
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calman
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Re: 3x3 & 6x6 MIMO

Sat Oct 15, 2011 4:58 pm

 
morf
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Re: 3x3 & 6x6 MIMO

Sat Oct 15, 2011 5:37 pm

Thank you for your reply.
I realized that the mikrotik support chipset AR9380, but what about the AR9390 wireless card "Compex WLE300NX MINI PCI Express Card."
I have a question about the polarization of the antennas in mimo3x3.
In mimo2x2 vertical and horizontal. What should be the polarization of the antennas have to mimo3x3?
Thank you for your prompt reply.

PS: I have an English poorly, do not judge harshly.
 
0ldman
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Re: 3x3 & 6x6 MIMO

Sat Oct 15, 2011 6:57 pm

I was thinking about doing this with 3 omnis. This chipset supports beamforming.

I don't know how well it would work, but it sounds like it has possibility.
 
morf
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Re: 3x3 & 6x6 MIMO

Sat Oct 15, 2011 8:50 pm

Now I have is offset antenna with bipolar radiator. That is, mimo2x2. Radio link throughput ~ 200 Mbps half-duplex.
I want to replace the wireless card on mimo3x3 and make another radiolink mimo1x1 and connected to the chain 3 in wireless card.
What do you think?
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TrollMan
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Re: 3x3 & 6x6 MIMO

Wed Oct 19, 2011 10:23 am

I'm also waiting for a microtik 3x3 card. Is it in the pipeline?
 
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honzam
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Re: 3x3 & 6x6 MIMO

Wed Oct 19, 2011 5:48 pm

from USA Las Vegas. PDF
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LAN, FTTx, Wireless. ISP operator
 
morf
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Re: 3x3 & 6x6 MIMO

Wed Oct 19, 2011 6:33 pm

from USA Las Vegas. PDF
Wow! What are the antenna and the wireless card did you use? What is the distance between mikrotik?
 
InoX
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Re: 3x3 & 6x6 MIMO

Wed Oct 19, 2011 8:30 pm

from USA Las Vegas. PDF
etc
 
rocketengineer
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Re: 3x3 & 6x6 MIMO

Wed Mar 20, 2013 11:33 pm

Does anybody know if there is anything on the market yet that is a completed outdoor unit that has the 3x3 antenna configuration and setup ready out of the box?
 
Sergio72
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Re: 3x3 & 6x6 MIMO

Thu Mar 21, 2013 12:12 am

There is few ready solutions for MIMO 3x3 as CyberBajt for example http://www.cyberbajt.com/en/shop_item/3 ... o_3x3.html. Also Wireless Instruments has an antennas for MIMO 3x3 http://www.wireless-instruments.com/en/ ... -18hv.html.

The fact is that MIMO 3x3 works with 3 antennas and there is no matter of the polarization as was said by normis, but... for the spatial multiplexing (without reflections) you need really good separation between data streams (chains). It can be realized by 3 different polarizations, and... there is more than simply H and V, there are also "slant polarizations", so rotations of eg. 45degrees.
 
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Re: 3x3 & 6x6 MIMO

Thu Mar 21, 2013 12:20 am

Complete solution made by Cyberbajt http://www.cyberbajt.pl/produkt/5003/

HTH,
Grzegorz | MTCNA, MTCRE, MTCSE | konsultacje MikroTik Warszawa
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WirelessRudy
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Re: 3x3 & 6x6 MIMO

Thu Mar 21, 2013 1:28 am

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Rudy R. Puister

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Sergio72
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Re: 3x3 & 6x6 MIMO

Thu Mar 21, 2013 1:40 am

The good antenna is a key in MIMO 3x3. There is only few companies which offer this solution. I don't know anyone who uses Lanbowan, I know that CyberBajt ready solution works.

The problem is with range and the final price, and the throughput of 450Mbps is in theory only I remind :) 3x3 needs to be still developed.
 
Sergio72
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Re: 3x3 & 6x6 MIMO

Thu Mar 21, 2013 8:17 am

To be sure 6x6 is not possible in 802.11n standard, unless you meant 2 x MIMO 3x3.

6x6 is possible in 802.11ac standard for example, but I think that making good antennas for that band would be a bit problematic.
 
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samjan
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Re: 3x3 & 6x6 MIMO

Mon Apr 01, 2013 11:44 pm

Now I have is offset antenna with bipolar radiator. That is, mimo2x2. Radio link throughput ~ 200 Mbps half-duplex.
I want to replace the wireless card on mimo3x3 and make another radiolink mimo1x1 and connected to the chain 3 in wireless card.
What do you think?
It will not really help. I try it
Using the 3d chain only on RX u will receive additional 30mbps only.
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czolo
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Re: 3x3 & 6x6 MIMO

Tue Apr 02, 2013 12:09 am

The good antenna is a key in MIMO 3x3. There is only few companies which offer this solution. I don't know anyone who uses Lanbowan, I know that CyberBajt ready solution works.
:D
The problem is with range and the final price, and the throughput of 450Mbps is in theory only I remind :) 3x3 needs to be still developed.
If only MT developers make it possible to use AR93xx with 60Mhz channel - even 450Mbps throughput will be possible :D
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