Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Benny Alexandar]

Hi Felix,


I pulled the master version of gr-drm from  (https://github.com/kit-cel/gr-drm) 
  and build and installed it. But when tried to execute the flow graph under 
apps/grc_flowgraphs/drm_transmitter.grc it throwed the attached errors.


[cid:89c79bb6-1556-4210-8212-981342832201]




-ben


From: Felix Wunsch <felix.wun...@kit.edu>
Sent: Thursday, November 10, 2016 10:22:38 PM
To: Benny Alexandar; discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations


Hi Ben,


the flowgraph is not tested at all as I have no DRM+ receiver to test against. 
I'm not aware of any other open source implementations.


- Felix

On 11/09/2016 05:29 PM, Benny Alexandar wrote:

Hi Felix,


Any update on DRM+, I'm planning to use DRM+ transmission using gr-drm. Is it 
fully functional and tested ?  DREAM doesn't support DRM+ reception. Any open 
source receiver available to receive DRM+ ?


-ben


From: Felix Wunsch <felix.wun...@kit.edu><mailto:felix.wun...@kit.edu>
Sent: Monday, November 7, 2016 5:44:16 PM
To: Benny Alexandar; discuss-gnuradio@gnu.org<mailto:discuss-gnuradio@gnu.org>
Subject: Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations


Hi Ben,


even though the stable version should work, please use the master branch, which 
contains all the recent changes. As you can see in the commit log, we moved our 
activity towards the kit-cel fork.


Regarding the DRM receiver: Actually, a student of mine wrote some code during 
his Master's thesis this year.We did not yet merge it into gr-drm, you can find 
the code here: https://github.com/florianbrauchle/gr-rxdrm. The code probably 
won't run in real-time, though. As the audio decoder is still missing, we never 
had to look into issues like clock drift.


- Felix



On 11/05/2016 05:31 AM, Benny Alexandar wrote:

Hi Felix,


>>>>

I'm happy to hear that gr-drm is being used! I hope you are using the newest 
version, I did quite some refactoring some time ago.,

I pulled the git stable version from this link,
https://github.com/kit-cel/gr-drm/tree/stable

Which is the latest version of gr-drm ?  I see another git version
https://github.com/fewu/gnuradio_drm

which one to use to get the latest changes ? Please send me the link. Do you 
have anyworking version of DRM receiver available on git ?

I'm using USRP N210 for transmission. Have you looked at receiver audio 
tracking to make sure the DRM receiver is compensating the drift in audio 
sample rates, to prevent overflow/uderrun etc ?

-ben



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Cheers
Felix

--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu<mailto:felix.wun...@kit.edu>

www.cel.kit.edu<http://www.cel.kit.edu>

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association


--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu<mailto:felix.wun...@kit.edu>

www.cel.kit.edu<http://www.cel.kit.edu>

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association


--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu<mailto:felix.wun...@kit.edu>

www.cel.kit.edu<http://www.cel.kit.edu>

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
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Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Felix Wunsch]

Hi Ben,


the flowgraph is not tested at all as I have no DRM+ receiver to test
against. I'm not aware of any other open source implementations.


- Felix


On 11/09/2016 05:29 PM, Benny Alexandar wrote:
>
> Hi Felix,
>
>
> Any update on DRM+, I'm planning to use DRM+ transmission using
> gr-drm. Is it fully functional and tested ?  DREAM doesn't support
> DRM+ reception. Any open source receiver available to receive DRM+ ?
>
>
> -ben
>
> 
> *From:* Felix Wunsch <felix.wun...@kit.edu>
> *Sent:* Monday, November 7, 2016 5:44:16 PM
> *To:* Benny Alexandar; discuss-gnuradio@gnu.org
> *Subject:* Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel
> simulations
>  
>
> Hi Ben,
>
>
> even though the stable version should work, please use the master
> branch, which contains all the recent changes. As you can see in the
> commit log, we moved our activity towards the kit-cel fork.
>
>
> Regarding the DRM receiver: Actually, a student of mine wrote some
> code during his Master's thesis this year.We did not yet merge it into
> gr-drm, you can find the code here:
> https://github.com/florianbrauchle/gr-rxdrm. The code probably won't
> run in real-time, though. As the audio decoder is still missing, we
> never had to look into issues like clock drift.
>
>
> - Felix
>
>
>
> On 11/05/2016 05:31 AM, Benny Alexandar wrote:
>>
>> Hi Felix,
>>
>>
>> >>>>
>>
>> I'm happy to hear that gr-drm is being used! I hope you are using the
>> newest version, I did quite some refactoring some time ago.,
>>
>> I pulled the git stable version from this link,
>> https://github.com/kit-cel/gr-drm/tree/stable
>>
>> Which is the latest version of gr-drm ?  I see another git version
>> https://github.com/fewu/gnuradio_drm
>>
>> which one to use to get the latest changes ? Please send me the link.
>> Do you have anyworking version of DRM receiver available on git ?
>>
>> I'm using USRP N210 for transmission. Have you looked at receiver
>> audio tracking to make sure the DRM receiver is compensating the
>> drift in audio sample rates, to prevent overflow/uderrun etc ?
>>
>> -ben
>>
>>>
>>> ___
>>> Discuss-gnuradio mailing list
>>> Discuss-gnuradio@gnu.org
>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>> Cheers
>> Felix
>> -- 
>> Karlsruhe Institute of Technology (KIT)
>> Communications Engineering Lab (CEL)
>>
>> Felix Wunsch, M.Sc.
>> Research Associate
>>
>> Kaiserstraße 12
>> Building 05.01
>> 76131 Karlsruhe
>>
>> Phone: +49 721 608-46276
>> Fax: +49 721 608-46071
>> E-Mail: felix.wun...@kit.edu
>>
>> www.cel.kit.edu
>>
>> KIT -- University of the State of Baden-Württemberg and
>> National Laboratory of the Helmholtz Association
>
> -- 
> Karlsruhe Institute of Technology (KIT)
> Communications Engineering Lab (CEL)
>
> Felix Wunsch, M.Sc.
> Research Associate
>
> Kaiserstraße 12
> Building 05.01
> 76131 Karlsruhe
>
> Phone: +49 721 608-46276
> Fax: +49 721 608-46071
> E-Mail: felix.wun...@kit.edu
>
> www.cel.kit.edu
>
> KIT -- University of the State of Baden-Württemberg and
> National Laboratory of the Helmholtz Association

-- 
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu

www.cel.kit.edu

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association

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Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Benny Alexandar]

Hi Felix,


Any update on DRM+, I'm planning to use DRM+ transmission using gr-drm. Is it 
fully functional and tested ?  DREAM doesn't support DRM+ reception. Any open 
source receiver available to receive DRM+ ?


-ben


From: Felix Wunsch <felix.wun...@kit.edu>
Sent: Monday, November 7, 2016 5:44:16 PM
To: Benny Alexandar; discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations


Hi Ben,


even though the stable version should work, please use the master branch, which 
contains all the recent changes. As you can see in the commit log, we moved our 
activity towards the kit-cel fork.


Regarding the DRM receiver: Actually, a student of mine wrote some code during 
his Master's thesis this year.We did not yet merge it into gr-drm, you can find 
the code here: https://github.com/florianbrauchle/gr-rxdrm. The code probably 
won't run in real-time, though. As the audio decoder is still missing, we never 
had to look into issues like clock drift.


- Felix



On 11/05/2016 05:31 AM, Benny Alexandar wrote:

Hi Felix,


>>>>

I'm happy to hear that gr-drm is being used! I hope you are using the newest 
version, I did quite some refactoring some time ago.,

I pulled the git stable version from this link,
https://github.com/kit-cel/gr-drm/tree/stable

Which is the latest version of gr-drm ?  I see another git version
https://github.com/fewu/gnuradio_drm

which one to use to get the latest changes ? Please send me the link. Do you 
have anyworking version of DRM receiver available on git ?

I'm using USRP N210 for transmission. Have you looked at receiver audio 
tracking to make sure the DRM receiver is compensating the drift in audio 
sample rates, to prevent overflow/uderrun etc ?

-ben



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Cheers
Felix

--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu<mailto:felix.wun...@kit.edu>

www.cel.kit.edu<http://www.cel.kit.edu>

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association


--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu<mailto:felix.wun...@kit.edu>

www.cel.kit.edu<http://www.cel.kit.edu>

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
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Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Felix Wunsch]

Hi Ben,


even though the stable version should work, please use the master
branch, which contains all the recent changes. As you can see in the
commit log, we moved our activity towards the kit-cel fork.


Regarding the DRM receiver: Actually, a student of mine wrote some code
during his Master's thesis this year.We did not yet merge it into
gr-drm, you can find the code here:
https://github.com/florianbrauchle/gr-rxdrm. The code probably won't run
in real-time, though. As the audio decoder is still missing, we never
had to look into issues like clock drift.


- Felix



On 11/05/2016 05:31 AM, Benny Alexandar wrote:
>
> Hi Felix,
>
>
> 
>
> I'm happy to hear that gr-drm is being used! I hope you are using the
> newest version, I did quite some refactoring some time ago.,
>
> I pulled the git stable version from this link,
> https://github.com/kit-cel/gr-drm/tree/stable
>
> Which is the latest version of gr-drm ?  I see another git version
> https://github.com/fewu/gnuradio_drm
>
> which one to use to get the latest changes ? Please send me the link.
> Do you have anyworking version of DRM receiver available on git ?
>
> I'm using USRP N210 for transmission. Have you looked at receiver
> audio tracking to make sure the DRM receiver is compensating the drift
> in audio sample rates, to prevent overflow/uderrun etc ?
>
> -ben
>
>>
>> ___
>> Discuss-gnuradio mailing list
>> Discuss-gnuradio@gnu.org
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> Cheers
> Felix
> -- 
> Karlsruhe Institute of Technology (KIT)
> Communications Engineering Lab (CEL)
>
> Felix Wunsch, M.Sc.
> Research Associate
>
> Kaiserstraße 12
> Building 05.01
> 76131 Karlsruhe
>
> Phone: +49 721 608-46276
> Fax: +49 721 608-46071
> E-Mail: felix.wun...@kit.edu
>
> www.cel.kit.edu
>
> KIT -- University of the State of Baden-Württemberg and
> National Laboratory of the Helmholtz Association

-- 
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu

www.cel.kit.edu

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association

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Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Benny Alexandar]

Hi Felix,




I'm happy to hear that gr-drm is being used! I hope you are using the newest 
version, I did quite some refactoring some time ago.,

I pulled the git stable version from this link,
https://github.com/kit-cel/gr-drm/tree/stable

Which is the latest version of gr-drm ?  I see another git version
https://github.com/fewu/gnuradio_drm

which one to use to get the latest changes ? Please send me the link. Do you 
have anyworking version of DRM receiver available on git ?

I'm using USRP N210 for transmission. Have you looked at receiver audio 
tracking to make sure the DRM receiver is compensating the drift in audio 
sample rates, to prevent overflow/uderrun etc ?

-ben



___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
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Cheers
Felix

--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu

www.cel.kit.edu

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
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Re: [Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Felix Wunsch]

Hi Ben,


I'm happy to hear that gr-drm is being used! I hope you are using the
newest version, I did quite some refactoring some time ago.


On 11/04/2016 05:21 PM, Benny Alexandar wrote:
>
> Hi,
>
>
> I was able to use the gr-drm to transmit using USRP and receive it  on
> DRM receiver.  However when tried to change RM to mode A, it fails to
> transmit. I'm using  GNU Radio Companion 3.7.10.1.
>
Not every combination of RM and bandwidth is allowed in the specification.
>
>
> I would like to experiment more on gr-drm, like DRM transmission
> reconfiguration.  DRM standard supports two types of reconfiguration:
> a service reconfiguration and a channel reconfiguration. This can be
> applied on the fly with or without audio interruption. I guess gr-drm
> doesn't support these.
>
That's correct. Feel free to add features!
>
>
> Can GNU Radio support on the fly changes to a block ?  How can a block
> be created to cycle through a set of values ? My aim is to automate
> the transmission by chnaging the parameters randomly.
>
You could try using/adding callbacks or message ports. This however
might get messy and/or complicated when, e.g., the I/O behavior of a
block has to be reconfigured. Another potential problem occurs if you
reconfigure multiple blocks and issues arise through samples that are
still stuck inbetween blocks. A simpler method would be to just restart
the flowgraph and reconfigure them inbetween runs.
>
>
>
> I also like to add some channel simulations, like AWGN and Rayleigh
> channels o DRM transmission in gr-drm. I checked in GNU radio some
> blocks exist for Channel models which can be plugged in before USRP
> sink block. Has any body done any channel simulations on DRM
> transmission ?
>
Not that I know of. On the other hand, I'm pretty sure that people
tested other, generic communication systems such as OFDM. Maybe they can
chime in at this point if you have any specific questions.
>
>
> -ben
>
>
>
> ___
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Cheers
Felix

-- 
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix Wunsch, M.Sc.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: felix.wun...@kit.edu

www.cel.kit.edu

KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association

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[Discuss-gnuradio] gr-drm reconfiguration & Channel simulations

[Benny Alexandar]

Hi,


I was able to use the gr-drm to transmit using USRP and receive it  on DRM 
receiver.  However when tried to change RM to mode A, it fails to transmit. I'm 
using  GNU Radio Companion 3.7.10.1.


I would like to experiment more on gr-drm, like DRM transmission 
reconfiguration.  DRM standard supports  two types of reconfiguration: a 
service reconfiguration and a channel reconfiguration. This can be applied on 
the fly with or without audio interruption. I guess gr-drm doesn't support 
these.


Can GNU Radio support on the fly changes to a block ?  How can a block be 
created to cycle through a set of values ? My aim is to automate the 
transmission by chnaging the parameters randomly.



I also like to add some channel simulations, like AWGN and Rayleigh channels o 
DRM transmission in gr-drm. I checked in GNU radio some blocks exist for 
Channel models which can be plugged in before USRP sink block. Has any body 
done any channel simulations on DRM transmission ?


-ben
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