Distributed Antenna System (DAS) in WinProp
Answers
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Hi Balaji,
The attached zip file may help. It was written for MIMO, not specifically for DAS, but DAS is explained as well.
In short: set up a Network Planning Project with multiple antennas and allowing for MIMO.
When you specify the details of the antennas, in the 'Carrier' dialog, you specify the SAME SIGNAL GROUP (e.g. signal Group A) for several antennas. Then you also say 'No MIMO'. This will force the antennas to transmit the exact same data on the same frequency, and they will be helping each other instead of interfering.
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Thank you very much for your quick response mvogel. I sincerely appreciate your kind help. I would review the material and will reach out incase of any doubts.
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@mvogel, Thank you for the document. I simulated a two antenna system with and without DAS. I could observe the variation in signal strength between without interference (same signal group, no MIMO) and with interference (same signal group, with MIMO). I hope I saw what I intended to observe.
In addition to this, as I learn more about DAS, I learnt that DAS architecture contains a Base station connected through an RF coax cable to a DAS head end equipment called master unit which is in turn connected to multiple remote units through fiber optic cables. These remote units are further connected to many distributed set of antennas. Please advise if I may be able to simulate this architecture with help of Winprop (Wallman, Aman, Proman and Compoman).
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CompoMan offers the ability to define components like cables and splitters. Have a look at the example model LTE_Indoor_withComponents.zip. It is located in the WinProp installation directory in the Help folder: C:\Program Files\Altair\2019\help\WinProp\examples.
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Thank you very much @mvogel for your valuable inputs. Really appreciate your help.
Have a wonderful day
Balaji
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