Re: [WISPA] RAD/Radwin x Wi-Fi

2009-09-19 Thread Rubens Kuhl
Answers inline...


On Fri, Sep 18, 2009 at 1:01 PM, Tom DeReggi wirelessn...@rapiddsl.net wrote:
 My understanding was they were using standard Wifi Chipsets, but provided
 their own TDD mac.
 Similar to the concept of Alvarion VL, that uses Atheros chipset, with their
 own proprietary MAC.

Do you mean the traditional Alvarion VL hardware or the new cheap stuff ones ?

 I'm pretty sure RadWin was the first to do this to accomplish immulated Full
 Duplex, with a single half-duplex designed chipset.

Hummm, a single half-duplex instead of two half-duplex ones like nstreme dual.

 This was way before, all the recent trend SoftwareTDD packages.

Which do you think is closer to the RadWin design: Karlnet, Mikrotik
nstreme, Ubiquiti AirMax or none of the above  ?

 The units are also the same as the equivellent Ceragon models. So there is
 some intellectual property that was licensed or oem'ed to the other, to make
 that viable.

Yes, Ceragon representatives confirm that they are indeed OEM'ing RAD/Radwin.

 Outside of that, I cant help.

 But thought I'd ask. What testing tools are you using to perform
 RFC-2544 performance testing ?

Agilent FrameScope Pro, but looking forward to less expensive tools.


Rubens



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Re: [WISPA] RAD/Radwin x Wi-Fi

2009-09-19 Thread Tom DeReggi
 Do you mean the traditional Alvarion VL hardware or the new cheap stuff 
 ones ?

The expensive Alvarian VL uses a standard Atheros Chipset.
But Alvarion has its own MAC, which is the secret to its more robust 
offering.

 Which do you think is closer to the RadWin design: Karlnet, Mikrotik
 nstreme, Ubiquiti AirMax or none of the above  ?

None of the above.


Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - 
From: Rubens Kuhl rube...@gmail.com
To: WISPA General List wireless@wispa.org
Sent: Saturday, September 19, 2009 11:15 AM
Subject: Re: [WISPA] RAD/Radwin x Wi-Fi


 Answers inline...


 On Fri, Sep 18, 2009 at 1:01 PM, Tom DeReggi wirelessn...@rapiddsl.net 
 wrote:
 My understanding was they were using standard Wifi Chipsets, but provided
 their own TDD mac.
 Similar to the concept of Alvarion VL, that uses Atheros chipset, with 
 their
 own proprietary MAC.

 Do you mean the traditional Alvarion VL hardware or the new cheap stuff 
 ones ?

 I'm pretty sure RadWin was the first to do this to accomplish immulated 
 Full
 Duplex, with a single half-duplex designed chipset.

 Hummm, a single half-duplex instead of two half-duplex ones like nstreme 
 dual.

 This was way before, all the recent trend SoftwareTDD packages.

 Which do you think is closer to the RadWin design: Karlnet, Mikrotik
 nstreme, Ubiquiti AirMax or none of the above  ?

 The units are also the same as the equivellent Ceragon models. So there 
 is
 some intellectual property that was licensed or oem'ed to the other, to 
 make
 that viable.

 Yes, Ceragon representatives confirm that they are indeed OEM'ing 
 RAD/Radwin.

 Outside of that, I cant help.

 But thought I'd ask. What testing tools are you using to perform
 RFC-2544 performance testing ?

 Agilent FrameScope Pro, but looking forward to less expensive tools.


 Rubens


 
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Re: [WISPA] RAD/Radwin x Wi-Fi

2009-09-18 Thread Tom DeReggi
My understanding was they were using standard Wifi Chipsets, but provided 
their own TDD mac.
Similar to the concept of Alvarion VL, that uses Atheros chipset, with their 
own proprietary MAC.
I'm pretty sure RadWin was the first to do this to accomplish immulated Full 
Duplex, with a single half-duplex designed chipset.
This was way before, all the recent trend SoftwareTDD packages.
The units are also the same as the equivellent Ceragon models. So there is 
some intellectual property that was licensed or oem'ed to the other, to make 
that viable.
Outside of that, I cant help.

But thought I'd ask. What testing tools are you using to perform 
RFC-2544 performance testing ?

Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - 
From: Rubens Kuhl rube...@gmail.com
To: WISPA General List wireless@wispa.org
Sent: Thursday, September 17, 2009 11:13 PM
Subject: [WISPA] RAD/Radwin x Wi-Fi


 I'm trying to figure out what's under the hood of Radwin
 Winlink-1000 / RAD AirMux-200 and the MIMO model Radwin-2000 / RAD
 AirMux-400, in order to better understand what  traffic patterns may
 or may not be suited to these radios.

 Although costly backhaul vendors (Redline, Motorola) keep telling me
 that RAD/Radwin are Wi-Fi based, my testing of them insist on telling
 me otherwise... for instance, AirMux-200 pass with flying colors thru
 RFC-2544 performance testing with maximum performance (18 Mbps) even
 for 64 byte frames (27 kpps), which is a very good pps rate compared
 to the 2kpps of a Ubiquiti Nanostation (non-M).

 Data rates are indeed similar comparing AirMux-200 to 802.11a,
 although Radwin tops at 48 Mbps air rate, not 54 Mbps; the MIMO model
 have data rates that look very much like the MCS8-15 802.11n data
 rates, suggesting that there are indeed some Wi-Fi heritage in the
 product, no matter what the tests say.

 Any ideas on what is going down to the bit level ?


 Rubens


 
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